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Lena [83]
3 years ago
15

Someone please explain :( I never understand this ( click to see pic )

Mathematics
1 answer:
Vlad1618 [11]3 years ago
3 0

Part A = 2 Questions

Part B = 5 Questions

Each A & B are worth 20 points each

10 points x 2 questions = 20

4 points x 5 questions = 20

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Can someone help me? ​
IrinaK [193]

Answer:

I figure you could simplify it by multiplying both sides by 6, resulting in -31+23=-30+18-1+5

-8=-8

Step-by-step explanation:

6 0
2 years ago
Y = 7x + 9<br> 2y + 2x = -18
zvonat [6]

Answer:

Step-by-step explanation:

Just multiply the first equation by -1 and then add them together to find x. Should look something like

-2x - y = -7

5x + y = 9

--------------------

3x + 0 = 2

x = 2/3

Now back substitute using either equation to find y. I'll use the first:

2(2/3) + y = 7

4/3 + y = 7

y = 7 - 4/3 = 21/3 - 4/3 = 17/3

Answer:

x=2/3

y=17/3

5 0
3 years ago
Read 2 more answers
Evaluate f-2g for f = 3 and g = 27.
lyudmila [28]
If you would like to evaluate f - 2 * g for f = 3 and g = 27, you can do this using the following step:

f - 2 * g = 3 - 2 * 27 = - 51
The correct result would be - 51.

If you would like to evaluate x * 0 + y * 0 for x = 3 and y = 2, you can do this using the following step:

x * 0 + y * 0 = 3 * 0 + 2 * 0 = 0 + 0 = 0
The correct result would be 0.
7 0
3 years ago
I earn $1 per hour. How much will I earn in a week
Whitepunk [10]

Answer:

depend how many hours u work

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Carrie is seven years older than Dan in four years the sum of their ages will be 63 find the age of each man now
Ksenya-84 [330]

never mind my answers wrong

4 0
3 years ago
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