Answer:
a) 10 y = x
b) 8.5 min
Step-by-step explanation:
a) x - axis = distance
y - axis = time
the line passing through points (10,1) (20,2) (30,3).......
line equation is y - y1 = m (x - x1)
m = (y2 -y1) / (x2 - x1)
= (2 - 1) / (20 - 10)
m = 1/10
y - 1 = 1/10 * (x - 10)
10(y - 1) = x - 10
10y - 10 = x - 10
10y = x
here x represents distance
y represents time
b) for distance of 85 inches
time =
10 * time = 85
time = 8.5 min
A salesman earns 30% commission on the merchandise that he sells last month he sold $600 worth of merchandise how much of commission in dollars did he earn last month????????
Answer:
$180
Step-by-step explanation:
.3 * 600
Answer:
He earned $180.
Step-by-step explanation:
Multiply 600 by .30 to get 180. Hope this helps!
please help me with this math problem
Step-by-step explanation:
the group of x friends is SPLITTING the cost of $50. Therefore to find the amount each person pays after the split, you will divide 50 by the amount fo friends (x). Each person is also paying an extra $5 for dessert. Therefore, you will be adding that 5 to everyone's total after splitting.
So the equation you will get is
[tex]a(x) = \frac{50}{x} + 5[/tex]
Answer:
A(x)= (50/x)+5
Step-by-step explanation:
50 bucks divided by the number of people in the group which is X and each must also pay 5 bucks for dessert.
12 ≤ 4n < 28
SOLVE THE COMPOUND INEQUALITY
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
[tex] \boxed{ \boxed{3 \leqslant n < 7}}[/tex]
The equivalent expression is ~
[tex] \large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}[/tex]
Let's solve ~
[tex]12 \leqslant 4n < 28[/tex]Now divide each term with 4
[tex]12 \div 4 \leqslant 4n \div 4 < 28 \div 4[/tex][tex]3 \leqslant n < 7[/tex][tex] \sf \: 12 ≤ 4n < 28[/tex]
Divide all parts by 4[tex]\sf \longmapsto \frac{12}{4}≤ \frac{4n}{4} < \frac{28}{4} [/tex]
[tex] \sf \longmapsto3≤n<7[/tex]
Result:
[tex]\boxed{ \sf 3 \leqslant n<7}[/tex]
Number line attachedWhat is the area of this triangle?
Answer:
all side equal is formula of triangle.But i think in our class 7 book is traingle formula is all side equal
What number is furthest from 0 on a number line? 16 or 18?
if 5/6 of the 30 motorcycles were new, how many motorcycles were used
Answer:
5 Motorcycles are used
30÷6= 5
5×5= 25
30-24=5
so the answer is 5
Answer:
5 out of the 30 motorcycles are used
Step-by-step explanation:
First, we should look at what we know. We know that there are 30 motorcycles in total. As a fraction, that'd be 30/30. We also know that of that 30, the equivalent of 5/6 are brand new.
Our next step is to figure out how much 5/6 is out of 30. Since we know that in total there 30/30 motorcycles, we need to convert 5/6 to have a denominator of 30. So what times 6 equals 30.
30 ÷ 6 = ? opposite of 6 x ? = 30
5 divide
So now we now that 6 times 5 equals 30. What we do to the denominator we must do to the numerator.
[tex]\frac{5}{6}[/tex] × [tex]\frac{5}{5}[/tex]
[tex]\frac{25}{30}[/tex]
Now we know that 25 of the 30 motorcycles are new and all we need to do is subtract that 25 from the total 30 to get 5. This tells us that 5 of the total motorcycles are used.
I hope this helped :)
Given f(x) = 5x + 4 , find f(-10)
Answer:
-46
Step-by-step explanation:
5 x -10 + 4 = -50 + 4 = -46
Can you help me on this question Plss
Answer:
Step-by-step explanation:
Non linear and varies
Answer:
linear because the pine is not straight it has to be straight to be proportional
Answer is D)-4 but please explain how to get it
Answer:
D
Step-by-step explanation:
We could plug x into the equation but to make it easier we simplify it first
[tex]\frac{1}{x} -\frac{1}{x+1}[/tex]
[tex]-\frac{1}{x+1} + \frac{1}{x}[/tex]
[tex]-\frac{1}{2x+1}[/tex]
x = -1/2
-2-2 = -4
plz help i give brainliest and points
Answer:
Step-by-step explanation:
To find this, lets make a equation.
We have the expression 8b - 27, lets set this equal to -11 and solve:
8b -27 = -11
Now lets solve.
Lets add 27 to both sides to get 8b alone:
8b = 16
Now lets divide by 8:
b = 2
So our answer is 2.
Hope this helps!
Choose the equation that represents the graph shown?
The graph shown represents an absolute function.
The equation of the graph is [tex]\mathbf{y = -\frac 12|x|}[/tex]
Considering the straight on the right, we have the following points
[tex]\mathbf{(x,y) = (0,0) (4,-2)}[/tex]
Start by calculating the slope (m)
[tex]\mathbf{m = \frac{y_2 - y_1}{x_2 -x_1}}[/tex]
So, we have:
[tex]\mathbf{m = \frac{-2 - 0}{4-0}}[/tex]
[tex]\mathbf{m = \frac{-2 }{4}}[/tex]
Simplify
[tex]\mathbf{m = -\frac{1}{2}}[/tex]
So, the slope of the line is -1/2
The equation is then calculated as:
[tex]\mathbf{y = m(x - x_1) + y_1}[/tex]
This gives
[tex]\mathbf{y = -\frac 12(x -0) + 0}[/tex]
[tex]\mathbf{y = -\frac 12(x)}[/tex]
Represent x as an absolute value
[tex]\mathbf{y = -\frac 12|x|}[/tex]
Hence, the equation of the graph is [tex]\mathbf{y = -\frac 12|x|}[/tex]
Read more about absolute graphs at:
https://brainly.com/question/1389494
TWO QUESTIONS! PLEASE ANSWER!
Drag the tiles to list the sides of △MNO from shortest to longest. There is a triangle MNO in which the measure of angle MNO is 54 degrees and the measure of angle NMO is 61 degrees.
The smaller the angle subtended by a side, the smaller the length of the
side.
The correct responses are;
Question 1: The list of sides from shortest to longest are;
[tex]\begin{array}{|c|c|c|}\overline{MO}&\overline{NO}&\overline{MN}\\Shortest&Medium&Longest\end{array}\right][/tex]a) Fridayb) 70 minutesc) 40%d) Yes, the sum of the mean number of minutes spent on aerobic training and the mean number of minutes spent on strength training is equal to the mean total number of minutes spent training.From the given diagram, we have, the measure of the third angle, ∠O, is
found as follows;
∠O = 180° - 54° - 61° = 65°
Therefore, ∠O = The largest angle
We get;
The longest side is opposite the largest angle, which gives;
The shortest side is the side opposite ∠N (54°)= [tex]\overline{MO}[/tex]
The next shortest side is the side opposite ∠M(61°) = [tex]\overline{NO}[/tex]
The longest side is the side opposite ∠O(65°) = [tex]\overline{MN}[/tex]
a) The time spent training on Tuesday = 60 + 10 = 70 minutes
The time spent training on Thursday = 50 + 30 = 80 minutes
The time spent training on Friday = 45 + 40 = 85 minutes
Therefore, the day the athlete spent the longest total amount of time training is on Friday
b) The time spent training on Monday = 10 + 20 = 30 minutes
The time spent training on Wednesday = 20 + 15 = 35 minutes
Therefore, we get;
30, 35, 70, 80, and 85
The median total number of minutes the athlete spent training each day =
70 minutes
c) The time spent strength training = 20 + 10 + 15 + 30 + 45 = 120
The total number of minutes the athlete spent training = 70 + 80 + 85 + 30
+ 35 = 300
[tex]\mathrm{The \ percentage \ spent \ on \ strength \ training} = \dfrac{120}{300} \times 100 = \underline{40 \%}[/tex]
d) The mean number of minutes spent on strength training is found as follows;
[tex]Mean_{strength} = \dfrac{120}{5} = 24[/tex]
The mean number of minutes spent on aerobic training is found as follows;
[tex]Mean_{aerobic} = \dfrac{10 + 60 + 20 + 50 + 40}{5} = 36[/tex]
[tex]Mean_{strength} +Mean_{aerobic} = 24 + 36 = 60[/tex]
The mean total number of minutes spent training, [tex]Mean_{total}[/tex] = [tex]\dfrac{300}{5}[/tex] = 60
Therefore;
[tex]\underline{Mean_{strength} +Mean_{aerobic} = Mean_{total}}[/tex]Learn more here:
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Finding slope from tables and
Answer:
m=-5/2 b=2
Step-by-step explanation:
It goes over 2 times ever time it goes down 5 times. and when the y is 0 the x is 2
Ms. Baranek buys trophies for field day each trophie cost $3.95 she pays $138.25 for all the trophies how many trophies does ms baranek buy
Answer:
34 trophies
Step-by-step explanation:
1348.25/3.95 = 34.24
Answer:
35
Step-by-step explanation:
138.25 / 3.95 will give you 35
Please help I don't can't figure out the answer
There are 135 people in a sport centre. 73 people use the gym. 59 people use the swimming pool. 31 people use the track 19 people use the gym and the pool. 9 people use the pool and the track 16 people use the gym and the track, 4 people use all three facilities. Given that a randomly selected person uses at least two facilities, what is the probability they use all the facilities?
Answer:
1/9
Step-by-step explanation:
4 people use all three facilities, then
16 - 4 = 12 people use the gym and the track and do not use the pool;
9 - 4 = 5 people use the pool and the track and do not use the gym;
19 - 4 = 15 people use the gym and the pool and do not use the track.
At least two facilities use 4 + 12 + 5 + 15 = 36 people, 4 of them use all three facilities. Thus, the probability that a randomly selected person which uses at least two facilities, uses all the facilities is 4/36
Would you rather receive $10,000 a day for 31 days or a penny that doubles in value every day for 31 days?
How much money would you have at the end of 31 days if you chose the $10,000 per day?
How much money would you have at the end of 31 days if you chose to double the penny every day?
How much would you have at the end of 15 days if you chose to double the penny every day?
Someone pls help me
This shows how much you would make per day for both choices.
Total earned in 31 days for $10,000 per day: $310,000
Explanation
$10,000 every day in 31 days.
Total earned in 31 days for penny: 21,474,836.47
Explanation:
Day 1: $0.01
Day 2: $0.02
Day 3: $0.04
Day 4: $0.08
Day 5: $0.16
Day 6: $0.32
Day 7: $0.64
Day 8: $1.28
Day 9: $2.56
Day 10: $5.12
Day 11: $10.24
Day 12: $20.48
Day 13: $40.96
Day 14: $81.92
Day 15: $163.84
Day 16: $327.68
Day 17: $655.36
Day 18: $1,310.72
Day 19: $2,621.44
Day 20: $5,242.88
Day 21: $10,485.76
Day 22: $20,971.52
Day 23: $41,943.04
Day 24: $83,886.08
Day 25: $167,772.16
Day 26: $335,544.32
Day 27: $671,088.64
Day 28: $1,342,177.28
Day 29: $2,684,354.56
Day 30: $5,368,709.12
Day 31: $10,737,418.24
Em uma avaliação que vale até 5 pontos, João tirou 4,2 pontos. Quanto João teria tirado caso a prova valesse 10 pontos?
Answer:
8.4 pontos
Step-by-step explanation:
4.2/5
multiplique o numerador e o denominador por 2
8.4/10
how many roots does the following equation have? x5+x4+x3+x2+x=0?
Step-by-step explanation:
it has only 1 root
Mark me brainliestMason gave the waiter a $14.58 tip, which was 15 percent of the dinner bill. What was the amount of the dinner bill before he added the tip?
$9.72
$21.87
$97.20
$218.70
Answer:
$97.20
Step-by-step explanation:
97.20 x 0.15 = 14.58
Multiply the total by 15 percent, giving you the $14.58 tip, proving it to be correct.
Your above-ground pool has sprung a leak, and you do not have a way to fix it. At 12 noon, the water in the pool is 5 feet deep (in other words, the water level is 5 feet above the ground). You are not sure how quickly the pool level is falling, so you check again after 40 minutes and see that the height of the water level is now feet. You notice that there is a relationship between the time that has passed to the height of the water level in the pool.
Answer:
Step-by-step explanation:
given g(x)=-2x+1 solve for x when g (x)=5
Answer:
x = -2
Step-by-step explanation:
g(x) = 5
-2x + 1 = 5
-2x = 5 - 1
-2x = 4
x = 4/-2
x = -2
_________
[tex]\:[/tex]
g(x) = 5
5 = -2x + 1
5 - 1 = -2x
4 = -2x
x = -2
The algebraic form of an with no solution is?
1. a = a
2. x = a
3. a = b
Which one is the answer?
PLS HELP !!! i’ll mark you for 1st right answer
Answer:
130 grams
Step-by-step explanation:
Add the second amount which equals 150, and then subtract by 20.
i need help on i ready what is the length of the breathing tube
Answer:
The average size of the tube for an adult male is 8.0, and an adult female is 7.0,
The typical depth of the endotracheal tube is 23 cm for men and 21 cm for women
Difference between complementary and Supplementary
Complementary angles sum to 90°. Supplementary angles sum to 180°.
Answer:
See below.
Step-by-step explanation:
Complementary: The sum of 2 angles is 90°.
Supplementary: The sum of 2 angles is 180°
.Learning Task 2: Get the quotient of each item up to the nearest ten thousandths place. Then, round the decimals to their nearest thousandths. Number 1 is done for you.
1.45÷8= 5.6250 -5.625------- example
4.93÷9 = _____ - ______
2. 77÷9 = _____ - ______
5.88 ÷7= _____ - ______
3.81÷7= _____ - ______
6.55÷8=_____ - ______
sorry if the numbers is a bit confusing
The responses for the quotient given to the nearest thousandths are
presented in the order of the of the questions as follows;
[tex]Question \ 4) \ \displaystyle \underline{\frac{93}{9} = 10.3333 \approx 10.333}}[/tex]
[tex]Question \ 2) \ \displaystyle \underline{\frac{77}{9} = 8.5555 \approx 8.556}[/tex]
[tex]Question \ 5) \ \displaystyle \underline{\frac{88}{7} = 12.4285 \approx 12.429}[/tex]
[tex]Question \ 3) \ \displaystyle \underline{\frac{81}{7} = 11.5714\approx 11.571}[/tex]
[tex]Question \ 6) \ \displaystyle \underline{\frac{55}{8} = 6.8750\approx 6.875}[/tex]
Reasons:
4. The division is presented as follows;
[tex]\displaystyle \mathbf{\frac{93}{9}}= \frac{90 + 3}{9} = 10 + \frac{1}{3} = 10.\overline 3[/tex]
Given that we have;
[tex]\displaystyle \frac{1}{3} = 0.\frac{10}{3} =0.3 \frac{10}{3} = 0.3333[/tex]
Therefore;
[tex]\displaystyle \underline{\frac{93}{9} = 10.3333 \approx 10.333}[/tex]
2. The division is presented as follows;
[tex]\displaystyle \mathbf{\frac{77}{9}} = \frac{72 + 5}{9} = 8 + \frac{5}{9} = 8. \frac{50}{9} = 8.5\frac{50}{9} = 8.55\frac{50}{9} = 8.555\frac{50}{9} = 8.5555[/tex]
Therefore;
[tex]\displaystyle \underline{\frac{77}{9} = 8.5555 \approx 8.556}[/tex]
5. The division is presented as follows;
[tex]\displaystyle \mathbf{\frac{88}{7}} = \frac{85 + 3}{7} = 12 + \frac{3}{7} = 12. \frac{30}{7} = 12.4\frac{20}{7} = 12.42\frac{60}{7} = 12.428\frac{40}{7} = 12.4285\frac{5}{7}[/tex]
[tex]\displaystyle \underline{\frac{88}{7} = 12.4285 \approx 12.429}[/tex]
3. The division is presented as follows;
[tex]\displaystyle \mathbf{\frac{81}{7}} = \frac{77 + 4}{7} = 11 + \frac{4}{7} = 11. \frac{40}{7} = 11.5\frac{5}{7} = 11.57\frac{10}{7} = 11.571\frac{30}{7} = 11.5714\frac{20}{7}[/tex]
Therefore;
[tex]\displaystyle \underline{\frac{81}{7} = 11.5714\approx 11.571}[/tex]
6. The division is presented as follows;
[tex]\displaystyle \mathbf{\frac{55}{8}} = \frac{48 + 7}{8} = 6 + \frac{7}{8} = 6. \frac{70}{8} = 6.8\frac{60}{8} = 6.87\frac{40}{8} = 6.875\frac{0}{8} =6.8750[/tex]
Therefore;
[tex]\displaystyle \underline{\frac{55}{8} = 6.8750\approx 6.875}[/tex]
Learn more here:
https://brainly.com/question/17913153
Los asistentes, hoy, a la reunión semanal de un club social se pueden agrupar por parejas para bailar, por tríos para hacer manualidades, y de 4 en 4 para jugar bingo. En ninguno de esos casos queda nadie sin grupo. ¿Cuántas personas son si casi llegan a 25?
En la reunión semanal había 24 personas.
Los asistentes, hoy, a la reunión semanal de un club social se pueden agrupar por parejas para bailar, por tríos para hacer manualidades, y de 4 en 4 para jugar bingo, y en ninguno de esos casos queda nadie sin grupo, para determinar cuántas personas son si casi llegan a 25 se debe realizar el siguiente cálculo, obteniendo el múltiplo común entre estos números:
2 - 4 - 6 - 8 - 10 - 12 - 14 - 16 - 18 - 20 - 22 - 243 - 6 - 9 - 12 - 15 - 18 - 21 - 244 - 8 - 12 - 16 - 20 - 24Por lo tanto, en la reunión semanal había 24 personas.
Aprende más en https://brainly.com/question/3113448
Which of the following represents a single replacement reaction?
Select one:
a.
AB + C --> AC + B
b.
A + B --> AB
c.
AB + CD --> AC + BD
d.
A - B --> AB
ACCURATE ANSWER=BRAINLIST
The first four terms of a sequence are shown.
7, 25, 43, 61, ...
Which of the following expressions can be used to find the nth term of the sequence?
Question 3 options:
7+18n
18+7n
18+7(n−1)
7+18(n−1)
Answer:
7+18n
might be the answer sorry if I am wrong
x+5+ y=0
how do I find the slope