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Rzqust [24]
3 years ago
5

Help me all please!!

Mathematics
2 answers:
Licemer1 [7]3 years ago
8 0
Well every pizza cost 9.50. So to see the cost for 2 pizzas you can do 2 * 9.50 and for 3 pizzas would be 3 * 9.50 and for 4 is 4 * 9.50 and this goes on forever. notice how the number of pizzas is the only thing that changes. So so we could substitute p for the number of pizzas and say
p pizzas cost p * 9.50 or 9.50p

To have it delivered there is a flat rate of 4.50. this can be added onto the price of p pizzas and we get
cost is 9.50p + 4.50 or
c = 9.50p + 4.50

2. h + 7 =15. in this equation we want to get the h by itself to its value. well to get the h by itself I have to get rid of the + 7. To to make + 7 = 0 I would have to put a - 7. But to put a -7 on one side of an equation i have to put it on other side like this:
h + 7 - 7 = 15 - 7
h + 0 = 8
h = 8

3. same as above but addition
m - 10 + 10 = 24 + 10
m = 34

4. same but division
6 * t / 6 = 96 / 6
t = 16

5. same but multiplication
p/7 *7 =3 * 7
p = 21
Harlamova29_29 [7]3 years ago
7 0
No matter how many pizzas he orders (P) he will be charged 4.50. then each pizza is worth 9.50 so you multiply that by how many he orders (5)
c=4.5+9.5p 
c=4.5+9.5(5)
c=$52

for these problems you do the opposite of what is shown
1. h+7=15, subtract 7 from each side. h=8
2. m-10=24, add 10 to each side m=34
3.6t=96, divide both sides by 6 t=16
4. multiply both sides by 7, p=21. 

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