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frez [133]
3 years ago
12

What is the difference of 23× and 9×

Mathematics
1 answer:
allsm [11]3 years ago
8 0
23x and 9x are alike terms so
23x-9x
14x
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What is the value of x in the following system y=3x-5 6x+3y=15​
gregori [183]

Answer:

the answer will be y=1

Step-by-step explanation:

If you plug in (3x-5) in for y in the 6x+3y=15, you will get 6x+9x-15=15. Add the like terms (6x+9x) and get 15x. Bring the -15=15 down. Add 15 to the other 15 on the other side of the equal sign, bring 15x down and then divide 15 by 30 and get x=2. Plug in 2 for x in the (3x-5) equation, then solve and the answer will be y=1.

7 0
3 years ago
Two sides of a right triangle have lengths of 4 centimeters and 7 centimeters. The third side is NOT the hypotenuse. How long is
andrezito [222]

Answer:

The third side is 5.7 centimeters.

Step-by-step explanation:

The hypothenuse is the largest side of a right triangle. So in this question, we know that the hypothenuse is 7.

One of the sides is 4, and the other is x.

Applying Pythagoras' Theorem:

x^{2} + 4^{2} = 7^{2}

x^{2} = 49 - 16

x^{2} = 33

x = \pm \sqrt{33}

Since it is a length measure, we only take the positive value

x = 5.7

The third side is 5.7 centimeters.

6 0
3 years ago
Question 5(Multiple Choice Worth 5 points)
andriy [413]

Answer:

A is the correct answer have a nice day

Step-by-step explanation:

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3 years ago
two fractions have a common denominator of 8. which of the following could be two fractions? a)1/2 and 2/3 b) 1/4 and 1/2 c)3/4
Anettt [7]
B because the denominators, 4 and 2, are both fators of 8
8 0
3 years ago
Read 2 more answers
I really need some help please
amm1812
The answer to ur question is a
8 0
3 years ago
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