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2 years ago

6

Which equation could you use to solve for x in the proportion StartFraction 4 over 5 EndFraction = StartFraction 9 over x EndFra

ction?
4 x = 14
4 x = 45
5 x = 13
5 x = 56

1 answer:

4vir4ik [10]2 years ago

5 0

Answer:

It is b :)

Step-by-step explanation:

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If f (x)=3x, g(x)=x-3, and h(x)= square root of x, find (fogoh)(25)

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(f o g o h)(x) = f { g [ h(x) ] }

Which means: apply first function h, then apply function g to the result, and finally apply function f to the new result.

h(25) = √25 = 5

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A pair of shoes cost $120 but they are 25% Off;

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Discount = $30, Final price = $90

Step-by-step explanation:

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Solve for x: 3(x-5)+4x-2=4

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Answer:

x = 3

Step-by-step explanation:

3(x−5)+4x−2=4

Step 1: Simplify both sides of the equation.

3(x−5)+4x−2=4

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7x−17+17=4+17

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3 0

2 years ago

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There are seven cats in my neighborhood, with an average of $41$ whiskers each. If one of the cats has $17$ whiskers, how many w

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Answer:

Each of the other cats have 45 whiskers on average.

Step-by-step explanation:

Let x represent the average number of whisker of each cat.

We have been given that there are 7 cats in my neighborhood, with an average of 41 whiskers each.

The total number of whiskers of six cats would be $6x$ .

Since one of the cats has 17 whiskers, so the total number of whiskers of 7 cats would be $6x+17$

We will use average formula to solve our given problem.

$\text{Average}=\frac{\text{Sum of data points}}{\text{Number of data points}}$

Upon substituting our given values, we will get:

$41=\frac{6x+17}{7}$

Let us solve for x.

$41*7=\frac{6x+17}{7}*7$

$287=6x+17$

$287-17=6x+17-17$

$270=6x$

Switch sides:

$6x=270$

$\frac{6x}{6}=\frac{270}{6}$

$x=45$

Therefore, the each of the other cats have 45 whiskers on average.

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2 years ago

How much money should John get back when he uses $10 to pay for purchases totaling $5.25

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$4.75 would be the answer

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