the common ratio is 1/5
the scale factor or start value is 500
Answer:
The number is 27
Step-by-step explanation:
let the number be x
3/4 ( 7-x)=-15
21/4 - 3/4x=-15
collect like terms
-3/4x=-15-21/4
-3/4x=-81/4
divide both sides by -3/4
x=27
The answer is:
But if x2 was supposed to be x^2 then the answer is:
Answer:
the second car is 75 miles longer than the first car for 5 hours
Step-by-step explanation:
First we need to know the distance each one traveled in 5 hours
the first one travels 40 miles in one hour
1 h = 40 mi
1h * 5 = 40mi * 5
5h = 200 mi
the second one travels 55 miles in one hour
1 h = 55 mi
1h * 5 = 55mi * 5
5h = 275 mi
so the first one traveled 200 miles and the second 275 miles
if 275 we have 200 left, we will get how many more miles the second car made in 5 hours
275mi - 200mi = 75mi
Step-by-step explanation:
The dimensions of the cuboid are 5 cm, 7 cm and 9 cm.
The formula for the surface area of the cuboid is as follows :
We have,
b = 9 cm, l = 7 cm and h = 5 cm
So,
Jamie forgets to multiply 143 by 2 as the formula for surface area contains 2 as well.