1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Bogdan [553]
3 years ago
14

Three boxes have a total weight of 640 pounds. Box A weights twice as much as Box B. Box C weight 30 pounds more than Box A. How

much do each of the boxes weigh?
Mathematics
1 answer:
Zarrin [17]3 years ago
4 0

Answer:

  A: 244 pounds

  B: 122 pounds

  C: 274 pounds

Step-by-step explanation:

We have A+B+C = 640; A=2B; C=A+30. Substituting the last into the first gives ...

  A + B + (A +30) = 640

  2A +B = 610 . . . . . . . . . . . . subtract 30

Substituting the second into this equation gives ...

  2(2B) +B = 610

  B = 610/5 = 122 . . . . . divide by 5

  A = 2B = 244 . . . . . . . .find A from B

  C = A+30 = 274 . . . . . find C from A

Box A weighs 244 pounds; box B weighs 122 pounds; box C weighs 274 pounds.

You might be interested in
A nature center offers 2 guided walks. The morning walk is two-third mile. The evening walk is three-sixths mile. Which walk is
MArishka [77]

Answer:

Evening walk is shorter.  

Step-by-step explanation:

We have been given that a nature center offers 2 guided walks. The morning walk is two-third mile. The evening walk is three-sixths mile. We are asked to find the shorter walk.

Let us compare both fractions by making the same denominator.

\text{Two-thirds}=\frac{2}{3}

\text{Two-thirds}=\frac{2\times2}{3\times2}

\text{Two-thirds}=\frac{4}{6}

\text{Three-sixth}=\frac{3}{6}

Upon making common denominator, we can see that two-thirds are equal to four sixths.

Since three-sixths is less than four-sixths, therefore, evening walk is shorter.

We will draw two rectangles, one with 6 sub-parts and other with three sub-parts.

We will shade 2 parts out of 3 sub-parts to represent 2/3 and shade 3 parts out of 6 sub-parts to represent 3/6.

Then we will further divide three sub-parts into 6 sub-parts as shown in the diagram that will represent 4/6.

5 0
3 years ago
A slow boat to china travels at a constant speed of 17.25 miles per hour for 200 hours. how far was the voyage?​
tensa zangetsu [6.8K]

Answer:

3450 miles

Step-by-step explanation:

Multiply the number 17.25 by 200 since the boat is traveling for 200 hours and each hour is 17.25 miles to get 3450 miles which is your answer.

4 0
3 years ago
Read 2 more answers
Determine the measure of angle j: angle k: & angle: l
Vikki [24]

Answer:

17=J

L= 180-17

 = 163

K=163

L=163

J=17

Step-by-step explanation:

3 0
3 years ago
Grace and her friends are playing a game that uses two dice. Each die is a tetrahedron – a four‐sided shape with each side an eq
lesya [120]
I need more information
7 0
2 years ago
Whats 12*5+55= <br><br> ill mark asa brainliest
Aleksandr-060686 [28]
First do PEMDAS
There's no parenthesis. So move on to exponent. There's also no exponents. Move on to  multiplication. There it is. 

12×5=60.

There's no division so now next one is addition. Hey look! There is addition. 

60+55=115.

So 115 is your answer.
5 0
3 years ago
Read 2 more answers
Other questions:
  • An article sells for $415.80. You wish to discount it by 20%. At what price will you offer it after the discount?
    6·2 answers
  • Given the line of the best fit for a set of data points with equation y=-5x-2.5 what is the residual for the point (3,6)
    6·1 answer
  • write the first two product in the table below. then use the pattern in the product to write the last two product in the table.
    10·1 answer
  • Mr. Rosenthal purchased dining room furniture on a no-interest, 24 months to- pay sale. The total cost of the furniture was $1,8
    9·1 answer
  • What is 10.833333333 as a mixed number
    9·1 answer
  • Number of acute, obtuse and right angles inside each shape
    11·2 answers
  • 1.) Which of the following is closest to 1?
    15·1 answer
  • Can someone tell me this? I dont get it.
    10·1 answer
  • A^2 + 3b ÷ c - 2d<br><br> A = 3 , B = 8 , C = 2, D = 5<br><br><br> please help me!
    11·1 answer
  • PLEASE WILL GIVE BRAINLIEST!!!!<br> 2/5+3/5<br> 8/9- 7/9<br> 3/3-1/3
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!