Answer:
Joan's older sister weighs 90 pounds
Step-by-step explanation:
x = older sister
x - 10 = Joan
(x + (x-10))/2 = 85
2x - 10 = 170
2x = 180
x = 90
Answer:
51
Step-by-step explanation:
Answer: 51
check: a^2+b^2=c^2 24^2+45^2=51^2 576+2025=2601 2601=2601
She have = 9/10 - 9/10*1/3 = 9/10 - 3/10 = 6/10
so, she has 6/10 pound apples left
A=208
explanation: 6x16= 96 & 8x14= 112
96+112= 208