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vekshin1
3 years ago
11

Value of x if 3(2x+9)=21?

Mathematics
2 answers:
Svetradugi [14.3K]3 years ago
7 0
The answer would be -1
ale4655 [162]3 years ago
3 0

Answer:

-1

Step-by-step explanation:

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Why is 31<br> less than 3 x 10?
andrew-mc [135]

Answer:

Step-by-step explanation:

Because 3x10=30 and 31 is greater than 30 by 1 more.

8 0
3 years ago
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The ratio of the dimensions of a rectangular patio are 4:7. if the shorter
Cerrena [4.2K]

If the ratio of the dimensions is 4:7 and the shorter dimension is 10ft, we know that the 10ft corresponds to the 4 in this scenario. We can set up the equation as follows:

\frac{4}{7} =\frac{10}{x}

You have to multiply by 2.5 to get from 4 to 10. And since we want to make sure we are maintaining the ratio, we have to multiply the denominator, 7, by 2.5 as well.

\frac{4}{7}*\frac{2.5}{2.5}=\frac{10}{17.5}

This means your shorter side has a length of 10ft and your longer side has a length of 17.5ft.

AREA

The formula for the area of a rectangle is: w*l

So we can plug our dimensions into the formula: 10*17.5=175

So 175 is our area. But we can't forget about units! Since this is area and we multiplied our units together, our units would be squared. That means our answer is <u>175 square feet</u>.

PERIMETER

The formula for the perimeter of a rectangle is: 2(w+l)

We can plug our dimensions into the formula: 2(10+17.5)=55

So 55 is our perimeter. Of course, we can't forget about our units. Because this is perimeter, we only added our units together, so they don't change. That means our answer is <u>55 feet</u>.

4 0
3 years ago
Write a division problem with a 3 digit dividend a divsor of 20 and a remainder of 10
netineya [11]
350 divided into 20 is 170 with a remainder of 10
6 0
3 years ago
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Help meeeeeeeeeeeeee
aliya0001 [1]

Answer: Second Option

f (x)=\frac{2}{x} and g(x)=\frac{2}{x}

Step-by-step explanation:

If we have a function f(x) and its inverse function f ^ {- 1} (x) = g (x)

Then by definition:

(fog) (x) = (gof) (x) = x

Notice that the inverse of the function f (x)=\frac{2}{x} is f ^ {- 1}(x)=\frac{2}{x}

then:

If f (x)=\frac{2}{x} and g(x)=\frac{2}{x}

Then:

(fog) (x) =\frac{2}{\frac{2}{x}}

(fog) (x) =\frac{2x}{2}

(fog) (x) =x

The answer is the second option

7 0
3 years ago
Lolo typed 1125 words in 15 minutes. Let w represent the number of words typed each minute. If Lolo the same number of words eac
Andreas93 [3]

She would type 15 words a minute. you divide 1125 by 15 and you get 15

answer:15

hopes this helps

7 0
4 years ago
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