Answe
Is here and answer because if there is than I can solve for x and y
Step-by-step explanation:
Answer:
Call the sister's height x. The boy is twice as tall, so that's 2x. The father is 30 cm taller than the boy, so his height is 2x + 30. The combined height is 3.8m, which is 380cm. Now you can write an equation
x + 2x + 2x + 30 = 380
collect like terms
5x = 350
x = 70
the sister is 70cm tall, the boy is 2*70 = 140 cm, and the father is 140 + 30 = 170cm
Check that the heights add up to 3.8m: 70 + 140 + 170 = 380 cm = 3.8m. Correct
Step-by-step explanation:
hope it helps
15 rows of trees because 4×15=6p more would equal 60
Answer: Slope (m) =ΔY/ΔX=5/2=2.5
Solve for t
3t-7=5t
subtract 3t
3t-3t-7=5t-3t
0-7=2t
-7=2t
divide 2
-7/2=t
subsitute
6t=6(-7/2)=-42/2=-21
6t=-21