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Sergeu [11.5K]
3 years ago
15

Question 7 ! I don’t understand some one explain

Mathematics
1 answer:
lana66690 [7]3 years ago
5 0

Answer:

4x +8 -x + 10 = x+4

3x+18= x+4

2x= -14

×=-7

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Please help me asap!!!
ololo11 [35]

G should be the correct answer

Hope this helps!

4 0
3 years ago
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Simplify<br><br> -3-20 divided by (-2*1)<br><br> Is the answer 7?
Anna35 [415]
No the answer is -13. Please mark me brainliest!
8 0
3 years ago
(a)
Vika [28.1K]

Answer:

(a) Percentage of girls = 55\frac{5}{7}

(b) Percentage of boys = 44\frac{2}{7}

Step-by-step explanation:

To find percentage, we multiply the fraction out of the total by 100%.

Percentage of girls = \frac{780}{1400} × 100%

                                = 55\frac{5}{7}

Percentage of boys = \frac{1400-780}{1400} × 100%

                                 = 44\frac{2}{7}

3 0
2 years ago
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Which of the binomials below is a factor of this trinomial?
KiRa [710]

Answer:

  • D. x + 4

Step-by-step explanation:

<u>Let's factor the trinomial:</u>

  • x² + 14x + 40 =
  • x² + 4x + 10x + 40 =
  • x(x + 4) + 10(x + 4) =
  • (x + 4)(x + 10)

x + 4 is between the answer options

Correct option is D.

6 0
2 years ago
Find a number less than 100 that is increased by one-fifth of its value when its digits are reversed.
zhannawk [14.2K]

Lets say the number is ab. Its value is 10a + b  

When it is reversed it is 10b + a = 12a+1.2b (from the condition its value should increase 0.2 times).  

11 a = 8.8b  

a/b = 8.8/11 = 0.8/1 = 8/10 = 4/5 ( we do this because a and b should be natural numbers less than 10).  

answer is 45.

7 0
3 years ago
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