Answer:
x + y = 900
5x + 9y = 6500
400 children
Step-by-step explanation:
Let:
Children = x ; adult = y
x + y = 900 - - - (1)
5x + 9y = 6500 - - - (2)
From (1)
y = 900 - x
Put y = 900 - x in (2)
5x + 9(900 - x) = 6500
5x + 8100 - 9x = 6500
-4x = 6500 - 8100
-4x = - 1600
x = 1600 / 4
x = 400
Answer:
It was used as the multiplier because the 5 represents the hours she's worked. If she uses the 1/5 graph she will find the unit rate of each time she gets paid an hour.
Step-by-step explanation:
<span>a=9.3</span> units
Explanation:
Use pythagorean theorem,
<span><span>c2</span>=<span>b2</span>+<span>a2</span></span>
Rearrange,
<span>a=<span>√<span><span>c2</span>−<span>b2</span></span></span></span>
Sub in and solve,
<span>a=<span>√<span><span><span>(12.6)</span>2</span>−<span><span>(8.5)</span>2</span></span></span></span>
<span>a=9.30</span> units
hope i helped -beanz:)
I wrote the problem, so that you could see actual square roots and not sqrt every time. I also showed the distance formula, which is essential to solving this problem.
Answer:
C
Step-by-step explanation:
