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patriot [66]
3 years ago
7

At Joe's Pizzeria, small pizzas cost $7.50, and large pizzas cost

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
5 0

Answer:

Option B. 44 is the correct answer

Step-by-step explanation:

Let l be the number of large pizzas and s be the number of small pizzas

Then according to the given statement the equations will be:

l+s = 100\ \ \ Eqn\ 1\\11l+7.5s = 848\ \ \ Eqn\ 2

From equation 1

l = 100-s

Putting in equation 2

11(100-s)+7.5s = 848\\1100-11s+7.5s = 848\\-3.5s+1100 = 848\\-3.5s = 848-1100\\-3.5s = -252\\\frac{-3.5s}{-3.5} = \frac{-252}{-3.5}\\s = 72

Putting s=72 in equation 1

l+72 = 100\\l = 100-72\\l = 28

How many more small pizzas means we have to find s-l

So,

s-l = 72-28 = 44

Hence,

Option B. 44 is the correct answer

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Expression (5x² - 2x + 7), (\frac{1}{5}x^3 -\frac{7}{2}x^2 -2) and (y⁵ - √(5y²) + 7) are polynomials.

<h3>What is a polynomial ? </h3>

A polynomial is a type of algebraic expression where exponents of all variables are whole number.

1) 5x² - 2x + 7

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