Answer:
35
Step-by-step explanation:
Make equations, l = w+5 and 2l + 2w = 150
Substitute w+5 into 2l + 2w = 150
Simplify to get 4w + 10 = 150
Subtract 10 from both sides to get 4w = 140
Divide both sides by 4 and you get 35 as width
First find 60% of 145 =
60% of 45 equals 87.
Now subtract 87 from 145.
145 - 87 = 58
So there were 58 girls.
Answer:
0.5 pints
Step-by-step explanation:
just multiply 45 time 31!
Since all triangle's angle's values add up 180 degrees, this means we have to make sure to angles add up to 180.
A. 75 + 35 = 110. 180 - 110 = 70 degrees.
B. This triangle is isosceles meaning 2 of its sides is the same length. In this case, the two sides add up to 140 (meaning they are both 70 degrees). 180 - 140 = 40 degrees.
C. I sadly don't know how to solve it.
D. This is another isosceles triangle. 180 - 36 = 144.