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3 years ago

Select all the key words for slope.

Mathematics

1 answer:

Lynna [10]3 years ago

3 0

Per is the answer for key words for slope

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raj has $10. if he buys 8 pears and 5 mangoes, he will be short of $1.10. if he buys 5 pears and 4 mangoes , he will receive $1.

Paladinen [302]

Answer:

1 pear = $0.45

1 mango = 1.5

Step-by-step explanation:

8 pears + 5 mangoes = $11.10 ➡ 8p + 5m = 11.10

5 pears + 4 mangoes = $8.25 ➡ 5p + 4m = 8.25

multiply first equation by -4 and second one by 5

-4 ×(8p+5m) = 11.10 ➡ -32p - 20m = 44.4

5 ×(5p+4m) = 8.25 ➡ 25p + 20m = 41.25

add both equations up

-32p - 20m + 25p + 20m = 44.4 + 41.25

-7p = 3.15 ➡ p = $0.45

use this value to find the price of mango

5×0.45 + 4×m = 8.25 ➡ 2.25 + 4m = 8.25 ➡ 4m = 6 ➡ m = $1.5

8 0

3 years ago

Eric invested 5000 dollars in the stock market. The value of his stock increased by 13%. a) what is the amount earned from this

blagie [28]

Answer:

$Earnings = 650$

$New\ Value = 5650$

Step-by-step explanation:

Given

$Amount = 5000$

$Rate = 13\%$

Solving (a): The earnings.

This is calculated as:

$Earnings = Amount * Rate$

$Earnings = 5000 * 13\%$

$Earnings = 650$

Solving (b): New Value

This is calculated as:

So, we have:

$New\ Value = Amount + Earnings$

$New\ Value = 5000 + 650$

$New\ Value = 5650$

4 0

3 years ago

Which shows three ordered pairs that are all solutions of the equation y = x + 7?

hoa [83]

Plug in both of the numbers for x and y in the equation.
After you do that, you should get B as your answer.

4 0

3 years ago

3x+1. I need to find and write an equation for x

Alchen [17]

Answer:

$x =\frac{-1}{3}$

Step-by-step explanation:

As the given algebraic expression is

$3x+1$

In order to solve the expression $3x+1$ for x, we have to

$3x+1=0$

Step 1: Subtract 1 from both sides

$3x+1-1=0-1$

$3x=-1$

Step 2: Divide both sides by 3.

$\frac{3x}{3} =\frac{-1}{3}$

$x =\frac{-1}{3}$

Therefore, $x =\frac{-1}{3}$

Keywords: equation, solution

Learn more equation solving from brainly.com/question/8806877

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3 years ago

Please helpppppp????

12345 [234]

Answer:

hii

Step-by-step explanation:

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3 years ago