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Stels [109]
3 years ago
12

Please help me w this, i'll mark brainliest if it's correct !!!! :)))

Mathematics
1 answer:
Elza [17]3 years ago
6 0

Answer:

Either A or D

A if I'm correct shows up as 64 x 0, which is zero

Then D may be right if A is wrong.

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Find three numbers such that their sum is 12, the sum of the first, twice the second, and three times the third is 31, and the s
Tpy6a [65]

Answer:

a = 3, b = -1, c = 10

Step-by-step explanation:

Let the three numbers be a, b and c.

Equation 1: a + b + c = 12

Equation 2: a + 2b + 3c = 31

Equation 3: 9b + c = 1

Equation 2 - Equation 1:

Equation 4: b + 2c = 19

Equation 3 times by the number 2

Equation 5: 18b + 2c = 2

Equation 5 - Equation 4

17b = -17

b = -1

Substitute into Equation 4:

2c - 1 = 19

2c = 20

c = 10

Substitute into Equation 1:

a + b + c = 12

a - 1 + 10 = 12

a = 3

8 0
2 years ago
Read 2 more answers
PLEAASE HELP ME FAST!!! HELP FAST!
Helen [10]
Divide the numbers for the unit rate and the rate is how much you side it by
5 0
3 years ago
Read 2 more answers
Are the two triangles below similar?
Inga [223]

Answer:

  No; they do not have congruent corresponding angles.

Step-by-step explanation:

Angle U is ...

  180° -28° -70° = 82°

The "corresponding" angle in ΔVWX is ∠X = 92°. These are not congruent, so the triangles cannot be similar.

5 0
3 years ago
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A equation for (7,2) and (2,12)
alexira [117]

Well to find this line you want to know the slope and the y-intercept. So find the slope:

(y2-y1)/(x2-x1)

12-2 = 10

2-7 = -5

10/-5 = 2/-1

-2 is your slope

Now for y-intercept, find the point closest to the y-axis. That is the point (2,12), and if your slope is negative 2, that means that if you go up 4 and left 2, you should find the y-intercept:

12 + 4 = 16

16 is your y-intercept

So now lets write this out in an equation:

y = mx + b

m = slope

b = y-intercept

y = -2x + 16

there you go! hope this helps!

5 0
3 years ago
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Three salesmen work for the same company, selling the same product. And, although they are all paid on a weekly basis, each sale
yanalaym [24]
GIVEN:
<span>Salesman A works strictly on commission. He earns $65 per sale, with a maximum weekly commission of $1,300.
Salesman B earns a weekly base salary of $300, plus a commission of $40 per sale. There are no limits on the amount of commission he can earn.
Salesman C does not earn any commission. His weekly salary is $900.

Salesman A: 1300 </span>≤ 65S
Salesman B: P = 40S + 300
Salesman C: P = 900

Salesman A can only have 20 sales. 1,300/65 = 20. It should not go beyond that because it will go beyond the limit of 1,300 per week.

Salesman B will earn 1,100 for 20 sales. P = 40(20) + 300 = 800 + 300 = 1,100.

Salesman C will earn 900 regardless if he had 0 or 20 sales for the week.

You can do your own graph using my equations.

3 0
3 years ago
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