An average can be calculated by the quotient of the sum of all terms and the number of terms. In this instance, there are 4 pairs of shoes with three given values. Let's say x is the price of the fourth pair of shoes.

$\frac{35+40+55+x}{4} =50$

Clear the fraction by multiplying both sides of the equation by 4.

7 0

3 years ago

What’s the value of x ?

ioda

Answer:

x=70

Step-by-step explanation:

Because these angles are on the opposite sides of each other, they have to add up to 180. This will make the equation 2x-5+45=180. Simplify this to get 2x+40=180. Subtract 40 from both sides to get 2x=140. Divide each side by 2 to isolate x. x=140/2. Simplify this to get x=70.

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3 0

3 years ago

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Todd Has 3/4 of a pizza. Mary has 6/10 of a pizza. How much do they have together?

Naily [24]

Answer:

They have 1 7/20 pizza together.

3 0

3 years ago

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