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Valentin [98]
3 years ago
8

Solve X/15 = 4/5. Solve for x

Mathematics
2 answers:
Inessa05 [86]3 years ago
5 0

When you have two fractions equal to each other, you can cross multiply. So, multiply x by 5 and 4 by 15.

5x = 60

Divide both sides by 5.

x = 12.

Roman55 [17]3 years ago
4 0

Answer:

x=12

Step-by-step explanation:

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Thanks for your help! :)
Tanya [424]

Answer:

65 = 6x + 7

6x = 58

x = 9.6666666...

65 + y + 9 = 180

y = 106


Step-by-step explanation:


4 0
3 years ago
Miss Kito’s car holds 18 gallons of gasoline. As she was driving, she noticed that the fuel gauge indicated that she had 1/5 of
jonny [76]

We will see that the cost of filling the tank is $38.88, and at the final of the trip she will have 4 gallons on the tank.

<h3>How much costs to fill the tank?</h3>

a) The car holds 18 gallons, and it has 1/5 of the tank remaining.

Then in the tank there are:

(1/5)*18 = 3.6 gallons.

Then we need 18 gal - 3.6 gal = 14.4 gal

And each gallon costs $2.70, then to fill the tank, Miss Kito needs:

(14.4)*$2.70 = $38.88

b) Now we know that the car travels 26 miles per gallon, and she needs to travel a total distance of 364 miles.

Then she needs:

\frac{364mi}{26 mi/gal} = 14 gal

To travel that distance, and the car holds 18 gallons, so at the end of the trip, she will have 4 gallons of gasoline in her car.

If you want to learn more about algebra, you can read:

brainly.com/question/4344214

7 0
2 years ago
Expand &amp; simplify<br> (x+1)2
stepan [7]

Answer:

(2x+2)

Step-by-step explanation:

4 0
3 years ago
Please help me:<br><br>What's the domain?<br><br>What's the range?<br><br>Is it a function?​
VladimirAG [237]

Answer:

\displaystyle Yes \\ Range: Set-Builder\:Notation → [f(x)|-2 ≤ f(x) ≤ 4] \\ Interval\:Notation → [-2, 4] \\ \\ Domain: Set-Builder\:Notation → [x|0 ≤ x ≤ 7] \\ Interval\:Notation → [0, 7]

Step-by-step explanation:

Just by looking at the graph vertically and horisontally, you can tell what the range and domain is, depending on whether the segments are <em>closed</em> or <em>opened</em>.

* This is a function because it passes the <em>vertical</em><em> </em><em>line test</em>.

** This is kind of like a sine wave.

I am joyous to assist you anytime.

6 0
3 years ago
Read 2 more answers
I'm having trouble on ixl here is what I have to do
Sophie [7]

Answer:

6(9r-7)

Step-by-step explanation:

54r–42

Both 54 and 43 can be divided by 6

54/6 =9  and 42/6 =7

6*9r - 6*7

Factor out the 6

6(9r-7)

8 0
3 years ago
Read 2 more answers
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