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vlada-n [284]
2 years ago
8

Can someone please help me with this problem?

Mathematics
2 answers:
Lana71 [14]2 years ago
6 0

Answer:

-13

Step-by-step explanation:

c=-5\\y=4\\c-2y=\\-5-(4*2)=\\-5-8=\\-13

The expression is equal to -13 when c=-5 and y=4.

Vedmedyk [2.9K]2 years ago
5 0

Answer: -13

Step-by-step explanation:

c-2y

= -5-2(4)

= -5 - 8

= -13

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If 7 litres of petrol cost $14.70 ,calculate the cost of 15 litres of petrol<br><br> Kindly answer
erastovalidia [21]

Answer:

The cost of 15 liters is $31.50

Step-by-step explanation:

1. Find the price for 1 liter of petrol.

Divide the cost by the number of liters:

$14.70 / 7 = $2.10 per liter.

2. Multiply the price for 1 liter by the new number of liters, 15.

$2.10 per liter x 15 liters = $31.50

3 0
3 years ago
The equation of a linear function in point-slope form is y – y1 = m(x – x1). Harold correctly wrote the equation y = 3(x – 7) us
Yanka [14]

Answer:

The point is (7,0).

Step-by-step explanation:

The equation of a linear function in point-slope form is as follows :

y-y_1=m(x-x_1) ...(1)

Where

(x₁,y₁) are the coordinates of the point which  the line passes through it and (x,y).

Harold correctly wrote the equation y= 3(x–7)

or we can write it as :

y-0=3(x-7) ...(2)

Comparing equations (1) and (2), we get :

x₁ = 7 and y₁ = 0

So, the point is (7,0).

The correct option is (c).

7 0
3 years ago
Margret works at a bakery. She is paid $300 every week plus $12 an hour for any
vivado [14]

Answer:

300+12x=$450

Step-by-step explanation:

8 0
2 years ago
Darrel went to the mall and spent $41. He brought several t-shirts that act cost $12 and he brought 1 pair of socks for $5. How
antoniya [11.8K]
Darrel bought three t-shirts seeing that 41-5=36/12=THREE
7 0
3 years ago
Read 2 more answers
Write an equation of the line that passes through (8,1) and is perpendicular to the line 2y+4x=12.
Olegator [25]

Answer:

Step-by-step explanation:

note:when you do perpendicular lines you must change the slope to the oppisite and reciporcal

2y+4x=12

2y-1/4x=12

1/4x+2y=12

3 0
3 years ago
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