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3 years ago

Set up Proportion and solve for X

Mathematics

2 answers:

Komok [63]3 years ago

6 0

Answer:

x/90 = 13/130(you can simplify this btw)

x90 x90

X = 9

Make both of them ratios

X to 90 and pick another random one 13 to 130.

Make sure to make them equal to eachother then just solve for x.

You can also compare it to 9 to 90

It would still work:

x/90 = 9/90

x90 x90

X = 9, x would also equal 9

Galina-37 [17]3 years ago

3 0

Answer:

x = 9

Step-by-step explanation:

Assuming the rectangles are similar

13 x

------ = ---------

130 90

Using cross products

13*90 = 130*x

Divide each side by 130

13*90/130 = x

x = 9

You might be interested in

If Jeremy drinks 1 1/2 quarts of coffee every 3 days, how many liters of coffee would Jeremy drink in 3 weeks? (1 quart = 0.946

Nostrana [21]

Answer:

9.93 liter approximately 10 liter

Step-by-step explanation:

3 days = 3/2 quart

3 week = 3/2/3 × 21 quarts

= 1/2×21

=21/2 quarts

now

1 quart = 0.946 liter

21/2 quart = 0.946×21/2 liter

21/2 quart = 9.93 liter

8 0

3 years ago

Root 3 minus root 2 divided by root 3 + root 2

Paladinen [302]

Answer:

$5 - 2 \sqrt{6}$

Step-by-step explanation:

Perhaps you are interested in rationalising the denominator of the given problem. Let's do it.

$\frac{ \sqrt{3} - \sqrt{2} }{ \sqrt{3} + \sqrt{2} } \\ \\ multiplying \: numerator \: and \: denominator \: \\ by \: (\sqrt{3} - \sqrt{2}) \\ \\ \frac{( \sqrt{3} - \sqrt{2} ) }{ (\sqrt{3} + \sqrt{2} )} \times \frac{ (\sqrt{3} - \sqrt{2} )}{ (\sqrt{3} - \sqrt{2} )} \\ \\ = \frac{{( \sqrt{3} - \sqrt{2} )}^{2} }{ { (\sqrt{3} })^{2} - {( \sqrt{2} })^{2} } \\ \\ = \frac{ { (\sqrt{3} )}^{2} + { (\sqrt{2} )}^{2} - 2 \sqrt{3 \times 2} }{3 - 2} \\ \\ = \frac{3 + 2 - 2 \sqrt{6} }{1} \\ \\ = 5 - 2 \sqrt{6}$

6 0

3 years ago

Please answer ASAP! Thank you in advance.

SashulF [63]

Answer:

I believe the answer is 5

Step-by-step explanation

12 - 7 = 5

7 0

3 years ago

Read 2 more answers

a plumber charges $50 for every house call and an additional $70 for each hour of work for one house call yesterday the plumber

sleet_krkn [62]

Answer:

5.5 hours

Step-by-step explanation:

Since every house has an initial charge of $50, we can begin with that

($50)

Then, let's define h as the number of hours. We know every hour is $70, although the hours is yet unknown so that can be

($70 * h) or simply ($70h)

Now, we know the total should end up to be $435, so after PEMDAS the equation will be

($70h + $50 = $435).

We subtract 50 from both sides so now we have $70h = $385.

Now we divide both sides by 70, giving us h = 5.5. Hope it helped!

4 0

3 years ago

(3x + 8)

slava [35]

A or b I just know it

6 0

3 years ago