Answer:
27
Step-by-step explanation:
To figure out the mean of a group of numbers, one must add the numbers together and divide by the number of terms.
31.6 + 34.5 + 29.8 + 12.1 = 108
There are four terms in the group of numbers.
108 / 4 = 27
Therefore, the mean is 27.
A store advertises “buy one, get one half-off" for a new pair of figure skates. If the skates originally cost
$88, how much would you pay for 10 pairs
A store advertises,
"Buy one and get one half off"
Which means if we buy one, half the price of one will be discounted.
In other words "50% discount on each item we buy"
We will $440 for 10 skates.
Original cost of skates = $88
After 50% discount price of one skate = $88 - $44 = $44
Cost of 10 pairs of skates = 44 × 10
= $440
Therefore, we will pay $440 for 10 skates.
Learn more,
https://brainly.com/question/11823881
use the area of a rectangle and the Distributive
Property to find each product.
9 X 34
Answer:
Step-by-step explanation:
Write 34 in tens and units.
34 = 30 + 4
9(30 + 4)
9 * 30 = 270
9* 4 = 36
270 + 36 = 306
After awhile if your practice enough, you can do them in your head.
Helppppp meeeeeeeeeeeehhhh
Answer:
9.00002 and 0.009 igs I am trying my best to understand lol
Find the equation of the line that passes through the point
(4, 11) and is perpendicular to y= 4/3x + 7
Answer:
y = -3/4x + 14
Step-by-step explanation:
The slope of a perpendicular line is the opposite reciprocal of the original line.
4/3x -> -3/4x
Now we need to find the y-intercept and we can do that by using the slope intercept form expression [ y = mx + b ].
11 = -3/4(4) + b
11 = -3 + b
14 = b
Put everything we know and solved for back into the expression.
y = -3/4x + 14
Best of Luck!
could anyone please help me ?
Answer:
please one times search answer in search engines ok
Plz help before 12 j
Step-by-step explanation:
1 - 5 is not equal to 8
2 - 16 is not equal to 8
3 - 12 is equal to 12
4 - 5 is not equal to 17
5 - 0 is not equal to 4
The quotient of a number and 2 is the same as the difference of the number doubled and 3. What is the number?
-2
-4
2
Answer:
n = 2; the number equals two
Step-by-step explanation:
n/2 = 2n - 3
2/2 = 2(2) - 3
1 = 4 - 3
1 = 1
n = 2
four cities lie along a straight highway in this order city a, city, city c, city d. The distance from city a to city b is 5 times the distance from city b to city c. The distance from city a to city d is 2 times the distance from city a to city d. the distance between city d and city c is 10 miles. What are the distances between the cities?
Dividing the segments and finding the lengths, it is found that the distance between the two cities is of 130 miles.
--------------------------------
We want to find the distance between cities a and d.Due to the cities along the highway, the distance is given by:[tex]ad = ab + bc + cd[/tex]
--------------------------------
The distance from city a to city b is 5 times the distance from city b to city c, and thus:[tex]ab = 5bc[/tex]
In terms of x, [tex]bc = x, ab = 5x[/tex]
--------------------------------
The distance from city b to city c is 2 times the distance from city c to city d, and thus:[tex]bc = 2cd[/tex]
In terms of x, [tex]cd = \frac{x}{2}[/tex]
--------------------------------
The distance between city d and city c is 10 miles, thus:[tex]\frac{x}{2} = 10[/tex]
[tex]x = 20[/tex]
--------------------------------
The other distances are:[tex]bc = x = 20[/tex]
[tex]ab = 5x = 5(20) = 100[/tex]
--------------------------------
The distance between cities a and d is:[tex]ad = ab + bc + cd = 100 + 20 + 10 = 130[/tex]
The distance between the two cities is of 130 miles.
A similar problem is given at https://brainly.com/question/24352869
Benny spent half of his allowance going to the movies. He washed the family
car and earned 8 dollars. What is his weekly allowance if he ended with
13 dollars ?
Let it be x
He spent x/2 dollars then
[tex]\\ \sf\longmapsto \dfrac{x}{2}+8=13[/tex]
[tex]\\ \sf\longmapsto \dfrac{x+16}{2}=13[/tex]
[tex]\\ \sf\longmapsto x+16=13(2)=26[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{26}{16}[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{13}{8}[/tex]
[tex]\\ \sf\longmapsto x=1.6\$[/tex]
[tex]\\ \sf\longmapsto Weekly allowance=13+7(1.6)[/tex]
[tex]\\ \sf\longmapsto 13+112=125[/tex]
Which is not a rational number?
Answer:
Answer: A real number that is not rational is called irrational. Irrational numbers include √2, π, e, and φ. The decimal expansion of an irrational number continues without repeating.
Find the value of this expression if x = 4 and
y = -2.
ху/5
Answer:
-1.6
Step-by-step explanation:
4x-2/5
=-8/5
=-1.6
which parts of the number line represent the factors? which part shows the product?
Answer:
The lines on the number line represent the factors. The product is the arrow
Step-by-step explanation:
my explantion is in the answer ig
Evarado paid $1.12 for a doszen eggs at his local grocery store. Determine the cost of the eggs
Answer:
of a single egg or?
Step-by-step explanation:
Simplify the following expression:
2x − 6y + 3x2 + 7y − 14x
3x2 + 12x + y
3x2 − 12x − y
3x2 − 12x + y
3x2 − 12x − 13y
Answer:
3x2-12x+y
Step-by-step explanation:
2x-6y+3x2+7y-14x
3x2 can't combine with anything
combine the 2x and -14x to get -12x
combine the -6y and 7y to get y
please help me, if you help then thanks!
9514 1404 393
Answer:
27
Step-by-step explanation:
Evaluating this expression according to the order of operations is a straightforward calculator problem.
= (81 ÷ 27)³ = 3³ = 27
__
You can also use the rules of exponents to simplify this before evaluating.
(a^b)^c = a^(bc)
(a^b)/(a^c) = a^(b-c)
__
= ((3²)² ÷ 3³)³ = (3⁴ ÷ 3³)³ = (3¹)³ = 3³ = 27
(-7) (2) (-2) as multiplication
Answer:
28
Step-by-step explanation:
-7*2=-14*-2=28
Find the radian measure of the central angle.
Answer:
in radian measure
theta=length of arc /radius
so a=l/r
a=56/70
a=4/5
Step-by-step explanation:
a= theta angle in radian
Please answer ASAP question is in pic^
Answer:
Step-by-step explanation:
Original equation
√x+6-4 = x
Isolate
√x+6 = 4+x
Raise both sides to the second power
(√x+6)2 = (4+x)2
After squaring
x+6 = x2+8x+16
Rearranged equation
x2 + 7x + 10 = 0
This equation has two rational roots:
{x1, x2}={-2, -5}
Original equation, root isolated
√x+6 = 4+x
Plug in -2 for x
√(-2)+6 = 4+(-2)
Simplify
√4 = 2
Solution checks !!
Solution is:
x = -2
Original equation, root isolated
√x+6 = 4+x
Plug in -5 for x
√(-5)+6 = 4+(-5)
Simplify
√1 = -1
Solution does not check
1 ≠ -1
Subtract: (4x3 + 9xy + 8y) – (3x3 + 5xy – 8y)
(4x³ + 9xy + 8y) - (3x³ + 5xy - 8y) =
= 4x³ + 9xy + 8y - 3x³ - 5xy + 8y =
= 4x³ - 3x³ + 9xy - 5xy + 8y + 8y =
= x³ + 4xy + 16y ← the end answer
How many gallons are in a pool that holds 758,000 Liters
Answer:
200000 gallons
Step-by-step explanation:
PLZZZ HELP
What pattern can you see in the graph of y = 10x for x ≥ 0?
Graphs are used to show the relationship between two variables. In the given graph, as the value of x increases, the value of y decreases.
Given that:
[tex]y = \frac{10}{x}[/tex]
The above function is an inverse function.
This means that:
As the value of x increases, the value of y decreases
Take for instance:
[tex]x= 1[/tex]
[tex]y = \frac{10}{1} = 10[/tex]
Now, [tex]x = 2[/tex]
[tex]y = \frac{10}{2} = 5[/tex]
Notice that:
As x increases from 1 to 2, the corresponding values of y decreases from 10 to 5
Hence, (b) is correct
Read more about graphs at:
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Solve (3k - 1) (4k + 9) using the FOIL method. QUICK!
Answer:
12k^2 + 23k - 9
(-2x^2yz^-2)^4 simplify the problem
Answer:
-8x(8yz)(-8)
Step-by-step explanation:
(-2x^2yz^-2)4
-8x(8yz)(-8)
the librarian purchased 22 copies of the best for $385.66 how much did each copy of the book cost
Answer:
$17.53
Step-by-step explanation:
$385.66÷22=$17.53
what is
3. {Review} 8 x 9 = *
4. {Review} 12 x 4 = *
5. {Review} 7 x 8 = *
6. {Review} 6 x 3 = *
7. {Review} 9 x 5 = *
8. {Review} 6 x 8 = *
9. {Review} 27 ÷ 3 = *
10. {Review} 36 ÷ 6 = *
11. {Review} 132 ÷ 12 = *
12. {Review} 110 ÷ 11 = *
13. {Review} 28 ÷ 4 = *
14. {Review} 35 ÷ 7 = *
Answer:
3. 72
4. 48
5. 56
6. 18
7. 45
8. 48
9. 9
10. 6
11. 11
12. 10
13. 7
14. 5
Isolate the variable by adding a constant to each side of the equation 4(x-5)=25
Answer:
ummm I think u want the answer x= 11 1/4
Answer:
x = 45/4
Step-by-step explanation:
4(x - 5) = 25
4x - 20 = 25
4x - 20 + 20 = 25 + 20
4x = 45
4x/4 = 45/4
x = 45/4
length of the ribbon is 120 M. what is the length of 7/15 of the ribbon?
Answer:
56 M
Step-by-step explanation:
Reduce fractions to their lowest terms equivalents
Multiply the numerators and denominators of the fractions separately
[tex]\frac{7}{15}[/tex] * 120 = convert to fraction
[tex]\frac{7}{15}[/tex] * [tex]\frac{120}{1}[/tex] = convert to fraction
[tex]\frac{7 * 120}{15}[/tex] = apply fraction rule [tex]\frac{a}{b}[/tex] * [tex]\frac{c}{d}[/tex] = [tex]\frac{a * c}{b * d}[/tex]
[tex]\frac{7 * 120}{15 *1}[/tex] = apply rule a * 1 = a 15 * 1 = 15
[tex]\frac{120}{15}[/tex] = 8 divide the numbers
7 * 8 = 56 multiply the numbers
Through calculations, Jack and Kelsey estimated the diameter of the fountain in the park. If the actual length is 15 feet, which student's estimate is more accurate? Explain your reasoning.
Answer:
cual es? ósea la pregunta?
If a and b are natural numbers, then which of the following must also be a natural number?
Answer:
please give options for answer.
Fiona drove 489.75 miles on the freeway without any break. She took 7.5 hours. How
much was her average speed for the trip?
