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Oxana [17]
3 years ago
9

Can someone plsss help me

Mathematics
1 answer:
balu736 [363]3 years ago
6 0

Answer:

y = -5/3 x + 40

Step-by-step explanation:

The general form is y = ax + b, where a is the slope and b is the y intercept.

So immediately you can see that b must be 40, since the line crosses the y axis at 40.

The slope can be calculated by finding two "nice" points on the line that are also grid lines.

How about (0,40) and (6, 30).

Then, calculate the slope by dividing the y difference by the x difference:

(30-40)/(6-0) = -10/6 = -5/3

So C must be the answer.

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alekssr [168]

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c

Step-by-step explanation:

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3 years ago
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(x3 + x2 – 61x + 25) + (x – 7)
vfiekz [6]

Answer:

x³ + x² - 60x + 18

General Formulas and Concepts:

  • Combining like terms

Step-by-step explanation:

<u>Step 1: Define expression</u>

(x³ + x² - 61x + 25) + (x - 7)

<u>Step 2: Simplify</u>

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4 0
3 years ago
A boy bought an article for £9. He spent £4
Marina86 [1]

Answer:

Profit % = 39%

Step-by-step explanation:

Cost price of the article = 9

Price for repairing = 4

Therefore, Total cost of the article = 9 + 4 = 13

Selling price  of the article = 18

Profit = 18 - 13 = 5

Hence,

          Profit \% = \frac{Profit}{Cost \ price} \times 100\\\\

                        = \frac{5}{13} \times 100\\\\=38.46 \%\\\\=38.5 \%

Profit percent (to the nearest %) = 39%

4 0
3 years ago
Write a rule for the linear function in the table. Help me!!!
dimaraw [331]

Answer: x=5

Step-by-step explanation:

0 x 5= 0

1 x 5= 5

2 x 5= 10

3 x 5= 15

4 0
3 years ago
A plumber and a builder were employed to fit a new bath, each working a different number of hours. The plumber earns 35 per hour
san4es73 [151]

Answer:

The builder worked roughly 12 hours and the plumber worked around 13. The builder got paid 330.75 so just divide 28 by that to get 11.9... then add 330.75 and 106.75 (which will be 437.50) and divide the sum by 35 the get 12.5.

Step-by-step explanation:

4 0
3 years ago
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