2 years ago

Explain how a solution found using substitution can be checked.

Mathematics

1 answer:

DENIUS [597]2 years ago

4 0

A solution can be found using substitution by substituting the ordered pair into both of the original equations.

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Rodney is making three pizzas. The recipe says that, for one pizza, he needs 2 cups of flour, 2 teaspoons of instant active dry

Mamont248 [21]

Answer:

14 cups of flour.

Step-by-step explanation:

Rodney is making three pizzas.

The recipe says that for one pizza he needs flour = 2 cups

Rodney buy a bag of flour containing = 20 cups flour

Rodney needs flour for three pizzas = 3 × 2 = 6 cups

He will have left over flour after making the pizzas = 20 - 6

= 14 cups of flour.

Rodney will have left over 14 cups of flour after making the pizzas.

6 0

3 years ago

What is the height of the cone below? V = 45 in^3 B = 5in^2

Lapatulllka [165]

Answer:

The height of the cone is h = 27

Step-by-step explanation:

Formula:-

Step 1:-

The volume of the cone is $V=\frac{1}{3} (base)(height)$

Given volume is V= 45 in^ 3

Given base of the cone is B= 5 in^2

Step 2:-

by using formula, we get solution

$45 = \frac{1}{3} (5)(h)$

cross multiplication, we get

$\frac{45 x 3}{5} =h$

now simplification, the height of the cone is h = 27

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2 years ago

What is the variable in the expression: 25 + 5z - 3?

Alekssandra [29.7K]

Answer:

The variable is z

Step-by-step explanation:

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2 years ago

Which equation represents a non-proportional situation? y = 6x y = –2x + 14 y = –3x y = 14x

ki77a [65]

The equation of proportional situation is y = ax.

Therefore your answer is y = -2x + 14

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2 years ago

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Ramiya is using the quadratic formula to solve a quadratic equation. Her equation is x = after substituting the values of a, b

Scorpion4ik [409]

Answer:

0 = x2 + 3x + 2

7 0

3 years ago