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jenyasd209 [6]
3 years ago
11

2x - 1 = 7 I need help with this equation

Mathematics
2 answers:
77julia77 [94]3 years ago
5 0

Answer:

×=4

Step-by-step explanation:

2x-1=7. so you have to add the 1 to both sides.

2x=8. then you divide the 2 on both sides to get x by itself.

x=4

KonstantinChe [14]3 years ago
4 0

Answer:

x = 4

Step-by-step explanation:

2x - 1 = 7

7 + 1

= 8

2x = 8

x = 4

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IgorLugansk [536]

Answer:

600

Step-by-step explanation:

What divided by 60 equals 10? In other words, you have an unknown number (X), and then if you divide that X by 60 you get 10. Then what is that X? Therefore, the answer to what divided by 60 equals 10 is 600.

That is the answer put anymore question if need help?

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3 years ago
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(HELP! I HAVE NO TIME) At 2pm, a store had sold 15 packs of toilet paper. By 5pm, the store had sold 57 packs of toilet paper. W
Novay_Z [31]

\mathrm {Hey, there!}

Let's solve your problem:

The answer would be 280%.

We know the following information:

2pm - 15 toilet paper rolls

5pm - 57 toilet paper rolls

We have to find the <u>percent rate of change.</u>

Here is how we will do this problem:

<h3><u>First, Set up a ratio:</u></h3>

Change in the quantity [15 - 57]

-------------------------------------

Original quantity [15]

57 - 15 = 42

<h3><u>Next, we will divide. the ratio.</u></h3>

Given quantity - 42

Number of packs sold at 2pm - 15

Fraction - 42/15

<h3><u>Convert the fraction to a decimal.</u></h3>

Fraction - 42/15

Decimal - 2.8

<h3><u>Make the decimal to a percent.</u></h3>

Decimal - 2.8

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<u>Add a zero to the 28.</u>

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<h3></h3>

4 0
3 years ago
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Taya2010 [7]

Using the substitution method to solve the linear system the value of x and y is 1 and 2 respectively.

<h3>What is the linear system?</h3>

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width.

Given

The equations are shown below.

y = 5 - 3x .....1

5x - 4y = -3 .....2

Substitute equation 1 in equation 2. Then

\begin{aligned} 5x - 4(5-3x) &= -3\\\\5x - 20 + 12x &= -3\\\\17x &= -3 +20 \\\\17x  &= 17\\\\x &= 1\end{aligned}

Then substitute the value of x in equation 1.

y = 5- 3x\\\\y = 5-3*1\\\\y = 2

Thus, the value of x and y is 1 and 2 respectively.

More about the linear system link is given below.

brainly.com/question/20379472

6 0
2 years ago
1 ) Ms. Allgood donated 63 books to her class. She would like to provide an equal number of books to each of her 9 students.
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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