Answer:
8 were yoused because 8 times 3 =24 so if you subtract you get 8
Step-by-step explanation:
Answer:
when she sold 10 cards, it will cover all her cost.
Step-by-step explanation:
Profit(without charge of booth)=5x-2x
Profit=3x-30
Calculating:
3x=30
x=10
Answer:
20 ; $135 ; service charge for 3 hours spent is $135
Step-by-step explanation:
Given that :
Service fee equation model :
C(h)= 75 + 20h
C = total cost of the service call
h = number of hours the plumber spends working on the problem
The charge per hour is the gradient or slope of the linear equation. From the equation, the slope is of the equation is related to bx from. The general form of a linear equation where b = gradient or slope(charge per hour) and x = number of hours
bx = 20h
b = 20
Charge per hour = 20
C(3) = 75 + 20(3)
75 + 60 = 135
This means that total service call charge for a plumber who spends three hours fixing a problem is $135
Answer:
2.46
3.63
195,929.85
236,551.79
35.39
34.31
B
Step-by-step explanation:
Explaining it is kind of akward, but I can explain if you want.
Not too sure about the last one, but the rest I feel good about
To find 1/3 of 15 you divide 15 by 3 then times it by one so, 15 / 3 = 5 x 1 = (5)
Nina has five dolls
