Answer:
$2.52
Step-by-step explanation:
Answer:
Mary is
times heavier than her sister
Step-by-step explanation:
Mary's Weight = n
Sister's Weight = n - 15
To find how many times mary is heavier, we need to multiply "that many time" [let it be x] with sister's weight to get Mary's weight.
<u>e.g. </u>If someone weighs 100 and another person 50, 50 * 2 = 100, thus, 100 kg person is 2 times heaving. We do same for this:
(n - 15) * x = n
x = n/(n - 15)
Use inverse to solve this problem. Cos-1(2/5)=66.421=66.
Answer:
17cm
Step-by-step explanation:
40mm+8cm+5cm=cm
13cm+40mm=cm
(40mm/10=4cm)
13cm+4cm=17cm