Answer:
27 years
Step-by-step explanation:
Let Holly's age be h and Aunt's age be a. We can setup 2 equations and solve.
1.
2. a - 15 = h
We can plug in equation 2 into equation 1 to solve for aunt's age:
Holly's aunt's age is 27
m = (y2-y1)/(x2-x1)
m = (2-5)/(9-2)
m = -3/7
passing (2, 5),
y = mx + b
5 = -3/7(2) + b
b = 5 +6/7
b = 41/7
equation
y = mx + b
y = -3/7x +41/7
answer: D. y = -3/7x + 41/7
Answer:
The answer is his/her velocity is (2450 x 2) miles/hour = 4900 miles/hour.
Step-by-step explanation:
Answer: 26.01 pi
Step-by-step explanation: The formulae to find the area of a circle is pi times the radius squared. So 5.1 times 5.1=26.01. So the answer would be 26.01pi or (using 3.14 for pi) 81.6714
Answer:
1000 seconds
Step-by-step explanation:
You can start by finding the unit rate for each of them to lay down a tile. That is, how many tiles they can lay down in one second. Ralph can lay one down in 1/5 of a second, while Bob takes 1/4. 1/5+1/4=4/20+5/20=9/20 of a tile per second. Dividing 450 by 9/20, you get 1000 seconds. Hope this helps!