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3 years ago

Please help asap 25 pts

Mathematics

2 answers:

hjlf3 years ago

5 0

Correct anser is c just let me kno if you need more answers

OLEGan [10]3 years ago

3 0

Step 1. Subtract 3 from both sides

2|7x - 4| = 51 - 3

Step 2. Simplify 51 - 3 to 48

2|7x - 4| = 48

Step 3. Divide both sides by 2

|7x - 4| = 48/2

Step 4. Simplify 48/2 to 24

|7x - 4| = 24

Step 5 Break down the problem into these 2 equations

7x - 4 = 24

-(7x - 4) = 24

Step 6. Solve the 1st equation: 7x - 4 = 24

x = 4

Step 7. Solve the 2nd equation: -(7x - 4) = 24

x = -20/7

Step 8. Collect all solutions

x = -20/7,4

The answer is C.

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Lina20 [59]

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3 years ago

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VashaNatasha [74]

Multiply the numerator and denominator by 7×2 = 14 to eliminate the denominators of those fractions:

$\dfrac{\dfrac37}{\dfrac{7\sqrt{10}}2}\times\dfrac{14}{14}=\dfrac{3\times2}{7\sqrt{10}\times7}=\dfrac6{49\sqrt{10}}$

Rationalize the denominator by multiplying both numerator and denominator by √10:

$\dfrac6{49\sqrt{10}}\times\dfrac{\sqrt{10}}{\sqrt{10}}=\dfrac{6\sqrt{10}}{49(\sqrt{10})^2}=\dfrac{6\sqrt{10}}{49\times10}=\dfrac{6\sqrt{10}}{490}$

Lastly, cancel the common factor of 2 in both the numerator and denominator (which comes from 6 = 2×3 and 490 = 2×245):

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8 0

2 years ago

On Monday, Jullo ran 39 miles. On Tuesday, he ran another

Artist 52 [7]

<h3>Answer:</h3>

67 miles

<h3>Step-by-step explanation:</h3>

On Monday, Jullo ran <u>39 miles.</u>

⇒ Monday = 39 miles

On Tuesday, he ran <u>24 miles.</u>

⇒ Tuesday = 24 miles

On Wednesday, he ran <u>4 miles.</u>

⇒ Wednesday = 4 miles

<u>Finding the total miles:</u>

Total miles ran on Monday, Tuesday, and Wednesday = 39 + 24 + 4

= 67 miles

6 0

1 year ago

Solve the proportion 35/30 = 28/?<br> A. 48<br> B. 23<br> C. 24<br> D. 46

koban [17]

Answer:

C. 24

Step-by-step explanation:

by algebra:

let "?" be x

35/30 = 28 / x (multiply both sides by 30)

35 = (28/x) (30) (multiply both sides by x)

35x = (28)(30)

35x = 840 (divide both sides by 35)

x = 840 / 35

x = 24

6 0

3 years ago

Which equation shows y=−12x 4y=−12x 4 in standard form? x 2y=−8x 2y=−8 2x y=82x y=8 2x−y=82x-y=8 x 2y=8?

Margaret [11]

In standard from the X comes first, then your Y value, then your equal sign and your numbers that don't have a letter value. I'm having a bit of trouble reading your question tbh, but maybe that could help you?

6 0

3 years ago