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3 years ago

4x+7y=2 solve for x.

Mathematics

2 answers:

Kitty [74]3 years ago

7 0

Subtract 7y7y from both sides

4x=2−7y

Divide both sides by 4

x= 2 - 7 y/ 4

Nady [450]3 years ago

3 0

Answer:

I got my answer in decimals

Step-by-step explanation:

First we have to get rid of our y so we divide everything by 7.

4/7=0.57

2/7=0.29

after we divide we get

x=0.51

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26 is whats percent of 40?

faltersainse [42]

100%/x%=40/26
(100/x)*x=(40/26)*x - We multiply both sides of the equation by x
100=1.53846153846*x - We divide both sides of the equation by (1.53846153846) to get x
100/1.53846153846=x 
65=x 
x=65

Now we have: 
26 is 65% of 40

Good luck~ Sans

5 0

3 years ago

There are 5 red marbles, 4 blue marbles and 7 black marbles in a bag. Like the theoretical P(choosing a red)

Kryger [21]

Answer:

$\frac{5}{16}$

Step-by-step explanation:

1. To find the answer, add up all the marbles.

4+5+7= 16

2. Because 16 is the total number of outcomes, it will be the denominator.

$\frac{}{16}$

3. Because 5 is the number of desireable outcomes, it will be the numerator.

$\frac{5}{16}$

(Note: the decimal equivalence is 0.3125).

(Note: the ratio equivalence is 5:16).

(Note: the percent equivalence is 31.25%).

4 0

2 years ago

1. Which regions contain more than 3 million males

densk [106]

Answer:

china has 713 million males

Step-by-step explanation:

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3 years ago

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Find the next three terms in the numbers sequence.. 4,8,14,22,32

S_A_V [24]

The next three terms are 44,58,74

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3 years ago

How do I do 2/13×2/16

Ulleksa [173]

Answer:

1/52

Step-by-step explanation:

4/208=1/52

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3 years ago

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