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andreyandreev [35.5K]
3 years ago
10

A number is divided in the ratio 7:2. If the second part is 34, find the number.

Mathematics
1 answer:
AleksAgata [21]3 years ago
3 0

Answer:

153.

Step-by-step explanation:

If the second part is 34 units, then the 2 of the ratio is equal to 34 / 2 = 17.

That means the first part will be 7 * 17 = 119.

119 + 34 = 153.

Hope this helps!

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(04.02 MC)<br> Solve the system of equations.<br> 5x + y = 9<br> 3x + 2y = 4
goblinko [34]

Answer:

(2,-1)

Step-by-step explanation:

Multiply first equation by 2:

10x + 2y = 18

Subtract the second equation from this so that the 2y terms cancel:

10x - 3x = 18 - 4

7x = 14

x = 2

Plug into first equation to find y:

5(2) + y = 9

10 + y = 9

y = -1

The answer is (2,-1)

7 0
3 years ago
Read 2 more answers
Solve the equation x^2 - 4x + 6 = 9 by completing the square.
tatuchka [14]

Hello!

x² - 4x + 6 = 9 <=>

<=> x² - 4x + 6 - 9 = 0 <=>

<=> x² - 4x - 3 = 0 <=>

<=> x = -(-4)±√(-4)²-4×1×(-3)/2×1 <=>

<=> x = 4±√16+12/2 <=>

<=> x = 4±√28/2 <=>

<=> x = 4±2√7/2 =>

=> x = 4+2√7/2 and x = 4-2√7/2 =>

=> x = 2+√7 and x = 2-√7

The equation has two solutions.

Good luck! :)

7 0
3 years ago
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Hi, hope you are well, please help me on this (:
valina [46]

Answer:

1. True

2. False

3. True

Step-by-step explanation:

1. (x,y) = (3,1). x = 3; y = 1

2. Vertical is y and horizontal is x

3. The origin is (0,0), The only time these two x and y axis intercept.

5 0
2 years ago
A rectangle has an area of 72 square inches. The width of the rectangle is 6 inches. What is the length of the rectangle?
inn [45]

Answer:

12

Step-by-step explanation:


3 0
3 years ago
<img src="https://tex.z-dn.net/?f=c.p%20%3D%20rs.750%20%20%5C%3A%20profit%20%3D%2050" id="TexFormula1" title="c.p = rs.750 \: p
White raven [17]

Answer:

SP=Rs 800

Step-by-step explanation:

→As we have,

→Profit=SP-CP

Now,

Profit=SP-CP\\Rs50=SP-Rs750\\Rs50+Rs750=SP\\SP=Rs800

8 0
2 years ago
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