Answer:
90m+145
Step-by-step explanation:
80 + 50m + 65 + 40m
90m+145
-5 and 15. -5 times 15 is equal to -75, and they also add to 10.
Answer:
Step-by-step explanation:
Let football cost be f and basketball cost be b
<u>We have two equations as per given:</u>
- 5f + 14b = 110
- 10f + 6b = 82.50
We need to find b, therefore we'll eliminate f
<u>To do so we'll double the first equation and subtract the second one:</u>
- 2(5f + 14b) - (10f + 6b) = 2(110) - 82.50
- 28b - 6b = 220 - 82.50
- 22b = 137.5
- b = 137.5/22
- b = 6.25
Each basketball costs $6.25
Each side of the square is 7 cm (I found the square root of 49).
Then multiply this by 4 (or add by four) to get the perimeter.
4 x 7 = 28 cm
This means the perimeter is 28 cm. Hope this helps :)
