Answer:
4X + X = 60
Step-by-step explanation:
Adults = X
Children = 4 × X
4X + X = 60
I couldnt understand the question that well but this is what i got from it
She got 87.5 percent. you find the answer by setting up a proportion
Answer:
£149.5
Step-by-step explanation:
![100 + 15 = 115\\115/100 = 1.15\\130 * 1.15 = 149.5](https://tex.z-dn.net/?f=100%20%20%2B%2015%20%3D%20115%5C%5C115%2F100%20%3D%201.15%5C%5C130%20%2A%201.15%20%3D%20149.5)
Answer:
(2.8-3.5)/3.5=-.2 (100)=20%
Percent error is 20%
formula to fin percent error is ((approx-exact)/exact)(100)
Step-by-step explanation:
Answer:
(8,-2)
Step-by-step explanation:
x and y switch places and x's sign is changed