Answer:
24
Step-by-step explanation:
20% of 30 = 6
30 - 6 = 24
Marina is taller because since Juan is 4 feet, he is 48 inches tall and Marina is 52 inches tall so Marina is taller than Juan.
Answer:
Average weight of the bags of potatoes is 3.8 pounds.
Step-by-step explanation:
Given:
Weight of the first bag,
pounds.
Weight of the second bag is 0.4 pounds less than twice the weight of first bag. This means,

Weight of the third bag is 0.6 pounds more than that of the first bag. This means,

Weight of the fourth bag is 0.3 pounds less than that of the second bag. This means,

Therefore, the average weight of the bags of potatoes is given as the sum of all the weights and then divide the sum by 4. Therefore,

Therefore, average weight of the bags of potatoes is 3.8 pounds.
Answer:
well, we only no that
2l + 2w is 80
(lengths and widths on all 4 sides
and that w * l is A
so the function should be w times what's left for l, but also expressed by something with w
2l + 2w = 80 | -2w
2l = 80 -2w | devide by 2
l = 80 - w
now we can substitute l in
A = w * l
so that we only need w's
A(w) = w * (80-w)
for any w it will give us the area, makes only sense for 0<w<80
Answer:
x=10, y=12.
Step-by-step explanation:
You are making all sides of the triangle smaller by a scale factor of 2/3, because 9*2/3=6. For x, we can do 2/3*15, which equals 10. For y, we can do 2/3*18, equalling 12.