Answer:
Evaluate the left-hand side expression at the given value to get a number.
Evaluate the right-hand side expression at the given value to get a number.
See if the numbers match.
Step-by-step explanation:
Answer:
To make a true equation, check your math to make sure that the values on each side of the equals sign are the same. Ensure that the numerical values on both sides of the "=" sign are the same to make a true equation. For example, 9 = 9 is a true equation. 5 + 4 = 9 is a true equation.
1. The school office is now selling neon mechanical pencils. If the office pays $10.80 for a dozen pencils, how much should be charged to make a profit of 75 cents each?
2. Several cases of 16-ounce bottles of water were purchased for $252.00. If one case costs $7.00, how many cases were purchased?
3. Okolona College ordered jerseys to sell at the homecoming game. The college paid $9.25 each for 225 jerseys. Each jersey was sold for $15.75. What was the percent of markup for each jersey? How much profit was made if all of the jerseys were sold?
4. A truck traveled 654 miles on a long distance run. If the truck averaged 55 mph, how many hours did it take to reach the truck's destination? (Round to the nearest hour)
5. Della Riley borrowed $2400 for 6 months to invest in a business venture. If she agreed to pay 8% interest annually, how much will she be repaying?
6. It takes Dan an average of 45 minutes each evening to do his chemistry homework. Dan calculates that he worked a total of 3 hours on chemistry last week. Assuming that Dan worked his average time per evening consistently, how many evenings did Dan work?
7. Jon's car averages 20 mpg in town and 28 mpg on the road. What is the percent of decrease between the two driving conditions?
Answers:
1)10.80/12 =0.90
0.90+0.75=1.65
2)252/7=36 units
3)cost price = $9.25*225
= $2081.25
Selling price = $15.75*225
= $3543.75
Profit = Selling price - cost price
Profit = $3543.75 - $2081.25
=$1462.50
5) FV = L*(1 + rt),
Where FV is the amount to repay; L is the borrowed amount (the loan amount) and "r" is the annual interest as decimal; t is the time.
In your case L = 2400 dollars; r = 8% = 0.08 (as decimal) and t = 0.5 of a year (6 months).
Therefore,
FV = 2400*(1 + 0.08*0.5) = 2496.
In 6 months, Della Rilley must repay $2496
4) 654miles/55mph=11 hours, 53 minutes, 27 seconds ANS: ap.12 hours
time = distance/speed
6) 60*3=180mins
180/45=4
Ans: 4 days
7) This is a decrease of 8
a decrease of 28.57% rounded to two decimals
8/3 x+1/3 x= 4+7/3 x whats x?
Answer:
x=-2
x=-3
x={-2,-3}
brainliest??
Answer:
X = 6
Step-by-step explanation:
brainliest to whoever is right
I belive it should be 132cm
Yesterday noah ran 2 1/2 miles in 3/5 hour. Emily ran 3 3/4 miles in 5/6 hour. Anna ran 3 1/2 miles in 3/4 hour how fast in miles per hour did each person run? Who ran the fastest? !!SHOW WORK!!
Answer:
Step-by-step explanation:
To calculate the speed of each one we proceed as follows:
speed=distance/time
a] Noah's speed:
distance=2.5 miles
time=3/5 hours
speed=(2 1/2)/(3/5)
=(5/2)/(3/5)
=5/2×5/3
=25/6
=4 1/6 mi/hr
Emily's speed
distance=3 3/4 miles
time=5/6 hour
thus
speed=(3 3/4)/(5/6)
=15/4)/(5/6)
=15/4×6/5
=4 1/2 mi/hr
Anna's speed:
distance=3 1/3 miles
time=3/5
speed=(3 1/3)/(3/5
=(10/3)/(3/5)
=10/3×5/3
=5 5/9 mi/hr
Anna was the fastest
Write an equation for the trend line shown
Answer:
y= -x + 225
Step-by-step explanation:
it has a negative slope so -x
it crosses the y axis at (0,225)
so put it together and you get -x+225
answer this equation: 4 3/5 - -3 2/5 + 3
Answer:
24
Step-by-step explanation:
[tex]4\frac{3}{5} -(-3\frac{2}{5})+3[/tex]
Negative and another negative makes a positive.
[tex]4\frac{3}{5}+3\frac{2}{5}+3[/tex]
Add the fractions first.
[tex]7\frac{5}{5}+3[/tex]
5/5 is equivalent to 1. 7 5/5 becomes 8.
[tex]8+3[/tex]
Add the numbers.
[tex]24[/tex]
I hope this helps!
Help....please I don’t want to fail.
What is the slope of the line in the graph?
ANSWER PLEASE HERE IS THE QUESTION AND THE ANSWER
Quick! Will give brainliest!
Answer:
b = -3
m = 3/2
equation: [tex]y = \frac{3}{2} x - 3[/tex]
Step-by-step explanation:
b is the y-intercept, or where the line meets the y-axis.
m is the slope. rise/run = 3/2
equation - im assuming you wanted slope-intercept form (y=mx+b)
Which equation best represents the relationship between x and y in the graph?
A. y = 2x − 3
B. y = 12x − 3
C. y = 3x − 2
D. y = −2x − 3
x+2⦁4=20
thanks i need it for notes!!!
Answer:
X+2⦁4=20
Step-by-step explanation:
2 times 4 which is eight, then subtract eight from 20. your answer is 12
X=12
So In your notes write
First you Mutiply the two factors 2 & 4, and then since eight is positive you will subtract it from the eight and the twenty. Youre left with X=12
Jack needs 22 pirates for every 2 pirate ships he manages.
Answer:
55, 121
Step-by-step explanation:
2*2 =4
22*2=44
but 4 is not the number we need and 4 is one less so we divide 22 by 2 and get 11 so 44+11=55
thats the first box.
The second box is 55*2+11 which is 121
55:is the first box
121 is the second empty box
it is for a grade please help asap
Answer:
I believe the answer is 64. I'm not exactly sure but let's hope it's correct.
Step-by-step explanation:
I did 4 times 16 since 1 pound is 16 ounces. So I multiplied 4 by 16 and it gave me 64.
Ummmm my brain just suddenly flew away the question is Multiply as shown. Then complete the division
PLEASE HELPPPPP
Answer:
First, how many times can 1.25 go into ten?
Then, how many times can 0.5 go into ten?
That is what they are asking you to do.
Please Help Me i will Give Brainliest
Answer:
C 2/3
Step-by-step explanation:
Sandra has 28 fish in her water garden. Twenty-two of her fish are
goldfish and 6 are Japanese koi. Express the part of Sandra's fish that
are goldfish as a decimal. Round the decimal to the nearest hundredth.
a. 0.84 b. 0.21 c. 0.79 d. 0.73 Explain
Answer:
C 0.79
Step-by-step explanation:
We have that 3 * f(x) + 4 * g(x) = h(x) where f(x), g(x), and h(x) are all polynomials in x. If the degree of f(x) is 8 and the degree of h(x) is 9, then what is the minimum possible degree of g(x)?
9514 1404 393
Answer:
9
Step-by-step explanation:
Adding polynomials causes like terms to be combined. The sum cannot have a degree higher than the degree of any of the terms in the sum. If the degree of f(x) is 8, then the degree of g(x) must be 9 in order for the sum to be of degree 9.
Ms. Hassan plans to serve appetizers at her Christmas party. She plans on offering 8 appetizers for every 3 people. If she has 240 people RSVP to the Christmas party, then how many appetizers will she serve?
Answer:
I hope this is right. If not im sorry.
Step-by-step explanation:
240 / 3 = 80
80 * 8 = 640
640?
Answer: 640
Step-by-step explanation:
A 4 x 5 x 8 rectangular prism is cut parallel to one of its faces into two prisms. Which could be the dimensions of the resulting prisms?
A. 4 x 5 x 1; 1 x 5 x 8
B. 4 x 4 x 4; 5 x 4 x 4
C. 4 x 5 x 4; 4 x 5 x 2
D. 5 x 2 x 4; 6 x 4 x 5
Answer:
d
Step-by-step explanation:
because if you. 5 x 2 x 4; 6 x 4 x 5=equals your answer as the one up in the question if you don't trust me use calculator.then you'll see which is 160.
the answer is D.)
hope this helped:)
may i get briainliest pls
HELP I'M REALLY BAD AT MATH! :D
Answer:
i think 9
Step-by-step explanation:
it is there the most
Answer:
I think it's 9.
help me you dont have to do all of them but if you do pls i will give you the brainiest
umm yeah,. i need help umm take ur time.
Answer:
I belive its the first answer choice not postive though! i hope it helps
Step-by-step explanation:
Simplify: x2 + 5x + 6(x + 3) x 42x + 4
4
2
2(x + 2)
(x + 2)
I Need Help Plz And Thank You And Show All Work And Steps.
Solve each system using the substitution method. Show all work and steps.
4.5.1) 2x-5y=8
x=3y-1
A. Substitute the equation that is already solved for one variable into the other equation.
B. Solve for the single variable in the one-variable equation.
C. Substitute the result from the previous step into x=3y−1 and solve for the unknown variable.
D. Write the solution as an ordered pair. E. Check the solution with the equation not used in Step C.
Answer: X=29
Step-by-step explanation:
First you substitute the x's: 2(3y-1)-5y=8
Then you open parenthesis:6y-2-5y=8
Combine like terms: y-2=8
Bring the 2 to the other side: y=10
Now you substitute the y with the answer: x=30-1
Easy equation: x=29
please help me! will give brainliest
do #5 and#6
Explain step by step how to do 10.25 x .15.
Answer:
1.5375
Step-by-step explanation:
Multiply without the decimal points, then put the decimal point in the final answer
1025 x 15 = 15375
....
10.25 has TWO decimal places
0.15 has TWO decimal places
Therefore, when you multiply with the decimal points (10.25 x 0.15), the answer should have FOUR total decimal places.
So the answer is 1.5375
what is 2 x 0
1
2
3
0
Answer:
0
Step-by-step explanation:
any number multiplied by 0 is always 0
PLEASE HELP! 10 Points!!
PLEASE HELP ASAP
A jewelry maker is designing a crown. The crown must have at least 45 gems, using only emeralds, rubies, and diamonds. The number of rubies must be 1 less than 3 times the number of emeralds. The number of diamonds must be 4 less than the number of rubies. Which inequality could the jewelry maker use to find the fewest number of emeralds, x, that can be placed on the crown?
Answer:
Step-by-step explanation:
X is the variable and x means multiplication symbol.
X + (X x 3 - 1) + (X x 3 - 1) - 4) ≥ 45 is the answer I got.
The answer to that inequality would be
X ≥ 7 I think
