1) Unit Rate = 26:1
We already know that for every 3 gallons, you can travel 78 miles. Divide 78 by 3 to get 26. The 26 stands for how many miles you can travel on one gallon.
2) Unit Rate = $7.50:1
Since we already know that for every 7 hours, you earn $52.50, divide 52.50 by 7 to get 7.50. The 7.50 represents how much money you earn in 1 hour.
3) Unit Rate = 52:1
Since you can travel 416 miles in 8 hours, divide 416 by 8 to get 52. The 52 represents how many mile you can travel in 1 hour alone.
Here's a little hint too: (If I remember correctly) For unit rates, it's always going to be *any number* to 1. So even if it's a decimal or a negative, the other side of the rate always has to be 1 :)
$31.85 because $45.50 x 30% divided by 100 then take away from 45.50
Answer:B
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
Given expression:
a varies directly as b;
a ∝ b
So;
a = kb where k is the constant of proportionality;
if a= 7 and b = 2;
7 = 2k
k = 
Now, find b when a = 21
21 = x b
b = 6
Answer:24x^2+24x
Step-by-step explanation:
24x^2+24x,por que es multiplicar el término de afuera con cada uno de los que están dentro del paréntesis y el triangulo antes del dos se refiere a que el dos es el exponente de 24 x(24x ala 2 potencia)
