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Leto [7]
3 years ago
13

Please help!

Mathematics
2 answers:
laiz [17]3 years ago
8 0

Answer:

yes x is the same in both problems

Step-by-step explanation:

in the first one you subtract seven from both side to leave you with x=5

in the second problem you subtract 14 (2x=10) from both sides then divide both sides by 2 so you are left with x=5

8_murik_8 [283]3 years ago
5 0

Answer: yes they both have the same answer.

Step-by-step explanation: 12 - 7 equals 4 and 28/7 equals 4

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A scientist mixes water (containing no salt) with a solution that contains 30% salt. She wants to obtain 180 ounces of a mixture
xxMikexx [17]

Answer:

water : 90 ounces

salt solution: 90 ounces

Step-by-step explanation:

Call w the amount of water and call the solution containing 30% salt.

We want to get 180 ounces of a mixture with 15% salt.

So:

The amount of mixture will be:

w + s = 180

the amount of salt will be

0w + 0.3s = 180 * 0.15

0.3s = 27

s = 90\ ounces

Now we substitute the value of s in the first equation and solve for w

w + 90 = 180

w = 90\ ounces

5 0
3 years ago
What is the value of x in the equation
Alex

Answer:

D) 57

Step-by-step explanation:

1/3x- 1/2 = 18 1/2

1/3x = 19

(3) * 1/3x = 19 (3)

x = 57

8 0
4 years ago
Read 2 more answers
Which expression is equivalent to 1/4 (5x + 6)?
Anettt [7]

The expression which is equivalent to 1/4 (5x + 6) is; Choice A: {5(1/4)x} + {6(1/4)x}.

According to the question:

  • We are required to determine an expression which is equivalent to <em>1/4 (5x + 6).</em>

In a bid to expand the expression; we must multiply each term in the parenthesis by (1/4);

In essence; we have;

  • <em>{5(1/4)x} + {6(1/4)x}</em>

Read more on multiplication;

brainly.com/question/847421

4 0
3 years ago
Suppose sarah is trying to design a metal box (a rectangular prism), which will hold 450 cubic centimeters of liquid. the length
schepotkina [342]
<span>So, the volume of a container can also be thought of as the amount of liquid that the container is capable of holding. It follows that 450=(length)(width)(height). The constraints of the problem say that the length of the box must be twice as large as the width, so it follows that j(height)=(2w)(w)(height)-450. This then implies that j(height)=(2w^2)(height)-450. In simpler terms, the height is defined as 450/(2w^2), or j(w)=450/(2w^2).</span>
5 0
3 years ago
What is greater 17 quarts or 4 gallons?
stepan [7]
17 quarts is greater. 4 gallons is equal to 16 quarts, right?
So 17 quarts would be greater than 4 gallons or 4.25 gallons
17 QUARTS IS GREATER.
5 0
3 years ago
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