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kvasek [131]
2 years ago
8

To find the sale price of an item you have to add the original price plus the discount amount

Mathematics
1 answer:
Orlov [11]2 years ago
3 0

Answer:

True

Step-by-step explanation:

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The points , (−15,1) and , (−7,r) lie on a line with slope 5/4. Find the missing coordinate r. Click image to enlarge
Nadya [2.5K]

The missing coordinate r is 11.

Solution:

Given points are (–15, 1) and (–7, r).

x_{1}=-15, x_{2}=-7, y_{1}=1 \text { and } y_{2}=7

Slope (m) = \frac{5}{4}

<u>To find the missing coordinate r:</u>

Slope formula:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Substitute the given values in the formula.

$\frac{5}{4}=\frac{r-1}{-7-(-15)}

$\frac{5}{4}=\frac{r-1}{-7+15}

$\frac{5}{4}=\frac{r-1}{8}

Do cross multiplication.

8 \times 5=4(r-1)

40 = 4r – 4

Add 4 on both side of the equation.

44 = 4r

Divide by 4 on both side of the equation.

11 = r

⇒ r = 11

Hence the missing coordinate r is 11.

6 0
3 years ago
Help me lol abcdefghijklmnopqrstuvwxyz
borishaifa [10]

Answer:

30 cans

Step-by-step explanation:

We can use ratios

15 cans                  x cans

----------------      = ------------------

7*2 people days     4*7 people days

Using cross products

15 * 28 = 14 * x

Divide by 14

15 * 28/14 = x

30 =x

4 0
3 years ago
Growing up, Joe lived in a small town. When he left for college, the population was 840.
bearhunter [10]

Answer:882

Step-by-step explanation:5 percent of 840 is 42 so 840 plus 42

8 0
2 years ago
PLEASE HELP
lubasha [3.4K]

Answer:

385 miles

Step-by-step explanation:

6 0
2 years ago
An internet service provider changes an initial fee of $65 and $18 per hour of labor for office internet installation. Which equ
mart [117]

Answer:

D

Step-by-step explanation:

65 is your "b" value in this linear equation

18 is your slope

3 0
3 years ago
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