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2 years ago

If y(x)=4x what is x when y(x)=4?

Mathematics

1 answer:

Fofino [41]2 years ago

4 0

Answer:

Step-by-step explanation:

y(x)=4x

y(x)=4

<=>4x=4

<=>x=1

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I WORK + I LEARN = I PASS

LiRa [457]

Answer:

460 ft long because if you add them all together and minus 40 that what you should get

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2 years ago

Find the mean (average) of the data set below? 2/4, 18/5, 28/10, 5/20

laila [671]

the mean (average) of the data set below

2/4, 18/5, 28/10, 5/20

We are given with 4 fraction

to find mean , we add all the fractions and divide by 4

Lets add all the fractions

$\frac{2}{4} + \frac{18}{5} + \frac{28}{10} + \frac{5}{20}$

Make the denominators same

LCM is 20

Try to get 20 in the denominator

$\frac{2*5}{4*5} + \frac{18*4}{5*4} + \frac{28*2}{10*2} + \frac{5}{20}$

$\frac{10}{20} + \frac{72}{20} + \frac{56}{20} + \frac{5}{20}$

$\frac{143}{20}$

Now we divide by 4

$\frac{\frac{143}{20}}{4}=\frac{143}{80}=1\frac{63}{80}$

6 0

2 years ago

Solution of the equation<br> 3x/5+1 = 4x/15+7

Inessa05 [86]

Answer:

$x=18$

Step-by-step explanation:

$\frac{3x}{5} +1=\frac{4x}{15} +7$

$\frac{3x}{5} -\frac{4x}{15} =7-1$

$\frac{9x}{15} -\frac{4x}{15} =6$

$5x/15=6$

$5x=90$

$x=18$

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2 years ago

(just for fun) If You Have all of the answers and if all of them is Correct, Ill mark Brainliest!! Good Luck And Enjoy!:>

mylen [45]

1) 31.4 2) 162

3) 621 4) 4.80

5) 2 6) 1.25

7) 330 8) 5560

9) 8.6 10) 96.7

11) 90 12) 2800

13) 1.81 14) 92

15) 51.0 16) 64.8

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2 years ago

Read 2 more answers

The area of a playing card is 48 square centimeters. It is 8 centimeters tall. How wide is it?

il63 [147K]

Answer:6

Step-by-step explanation:

Area of a rectangle = length × width

Length = 8

Breadth = ?

Area = 48

L × B = Area

8 × B = 48

Divide both sides by 8

B = 48 ÷ 8

B = 6

3 0

2 years ago

If y(x)=4x what is x when y(x)=4?​

If y(x)=4x what is x when y(x)=4?