2 years ago

Write and evaluate algebraic expressions

Mathematics

1 answer:

Sloan [31]2 years ago

7 0

Answer:

9b+10s

Step-by-step explanation:

you are trying to find an expression for total cost after an unknown amount of hours. you need to multiply the number of hours (defined as b and s in this example) by the cost per hour given ($9/hr for the bike and $10/hr for the scooter).

this would result in the following expression: total cost=9b+10s

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4 years ago

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What is the length of the major axis of the conic section shown below?

sveticcg [70]

$\dfrac{(x-2)^2}{49}+\dfrac{(y+5)^2}{36}=1$

The equation of a elipse:

$\dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}=1$

The length of the major axis is equal 2a if a > b or 2b if b > a.

We have

$a^2=49\to a=\sqrt{49}=7\\\\b^2=36\to b=\sqrt{36}=6\\\\a > b$

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4 years ago

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2 years ago

A shoemaker makes 15,200$ and 912$ in commission (included in 15,200). What is the percent he made in commission to he whole amo

kodGreya [7K]

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3 years ago

Which shows the correct solution to the inequality 7/10> 1 5/8+p

Bogdan [553]

Answer: $\begin{bmatrix}\mathrm{Solution:}\:&\:p$

Step-by-step explanation:

$\frac{7}{10}>1\frac{5}{8}+p$

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$p$

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