180x2= 360. 360-8= 352 so the difference in weight is raul weighs 172 more than his sister
Answer:
16
Step-by-step explanation:
can divide each side by 3 and get: |x - 7| = 9
can solve as though equation was this: x - 7 = 9
A. the answer is 5. it is less than 12 3*5=15-6=9
The volume of the prism shaped fish tank is: 408 in.³.
<h3>What is the Volume of a Prism?</h3>
Volume of prism = base area × height of prism.
The fish tank is a prism having a height of 8 inches. To find its volume, find the base area, which is the area of the composite figrue given.
Thus:
Base area = area of rectangle + area of triangle = (length × width) + (1/2(base × height).
Given:
- Length = 7 in.
- Width = 6 in.
- Base = 6 - 3 = 3 in.
- Height = 13 - 7 = 6 in.
Therefore:
Base area = (7 × 6) + 1/2(3 × 6)
Base area = 51 in.²
Volume of the prism shaped fish tank = 51 × 8 = 408 in.³.
Learn more about volume of prism on:
brainly.com/question/4192447
Answer:
6x = - 21
Step-by-step explanation:
Given
3x - 7 = 5x ( subtract 3x from both sides )
- 7 = 2x
Then
6x = 3 × 2x = 3 × - 7 = - 21