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ExtremeBDS [4]
2 years ago
14

A large cheese pizza costs $7.50. Each additional topping for the pizza costs $1.35. If the total bill for the pizza Sally order

ed was $12.90, how many toppings did she order? (Enter a whole number, for example, 20, no variables and no words).
Mathematics
1 answer:
konstantin123 [22]2 years ago
5 0

Answer: She ordered 4 toppings.

Step-by-step explanation:

Given: Total cost of pizza  = $ 12.90

Cost of pizza =$7.50

Price per topping = $1.35

Let x = Number of toppings,

Total cost of pizza = (Cost of pizza) + (price per topping) × (Number of topping)  

12.90= 7.50+1.35x\\\\\Rightarrow\ 1.35x=12.90-7.50\\\\\Rightarrow\ 1.35x=5.4\\\\\Rightarrow\ x=\dfrac{5.4}{1.35}\\\\\Rightarrow\ x=\dfrac{540}{135}=4

hence, she ordered 4 toppings.

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We get

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Next find the product of 16/27 x(-15)/8

That's

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Next reverse -10/9

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Next we divide it by = -1 /24

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3 years ago
What is the zero in the quadratic function f(x)= 9x^2-54x-19?
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We will now solve for the plus and the minus.

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and the minus...

x=\frac{54-\sqrt{3600}}{18}\\x=\frac{54-60}{18}\\x=\frac{-6}{18}\\x=-0.333...

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