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katrin [286]
2 years ago
13

The work of a student to solve a set of equations is shown below: m=8+2n; 4m=4+4n. Solve by elimination

Mathematics
1 answer:
nadya68 [22]2 years ago
4 0

Answer:

Step-by-step explanation:

4(8+2n) = 4 + 4n

32 + 8n = 4+4n

4n = -28

n = -7

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Andrew has three times as many pencils as Noah and five pens he has 17 pens and pencils altogether how many pencils does Noah ha
Novay_Z [31]

9514 1404 393

Answer:

  4

Step-by-step explanation:

The distributive property does not appear to be involved in this question.

Let n represent the number of Noah's pencils. Then Andrew's total is ...

  3n +5 = 17

  3n = 12 . . . . . subtract 5 from both sides

  n = 4 . . . . . .  divide both sides by 3

Noah has 4 pencils.

7 0
2 years ago
please please please help I’ll give the brain thing if you give a correct answer + explain thanks!!!:))
Andreyy89

Answer:

I think its 4 because all the other ones are adding half of the original number

16-24 adds 8

8-12 adds 4

1-1.5 adds .5

so if it's going to 6 it should be 4 adding 2

5 0
2 years ago
A) Work out the value of angle x.<br>X<br>X=<br>b) Give reasons for your answer.​
Dmitriy789 [7]

Answer:

x = 60° (Alternate angles)

Step-by-step explanation:

a) x = 60°

b) Reason: Alternate angles

5 0
3 years ago
Debra has ridden 57 miles of a bike course the course is 60 miles long what percentage of the course has Debra ridden so far
Reptile [31]

Hello!

To find our answer, we just divide.

57/60=0.95

We multiply by 100 to find our percent

100(0.95)-95

Therefore, our answer is 95%

I hope this helps!

4 0
3 years ago
Read 2 more answers
Simplify (65)2<br> O A. 670<br> O B. 67<br> C. 65<br> D. 63
Ket [755]
130 If you multiply that’s what it would give you so I’m not sure what those answers are
8 0
3 years ago
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