Answer:
so x=5y

reciprocal of x=1/x then

sum of reciprocals means 1/x+1/y=2/5

subsitute x=5y for x in 1/x+1/y=2/5 and get

1/5y+1/y=2/5

multiply 1/y by 5/5 to make it 5/5y so you can add since the denomenators (bottom number) are the same

1/5y+5/5y=2/5

6/5y=2/5

multiply both sides by 5y

6=2y

divide both sides by 2

3=y

put this into x=5y so

x=5(3)

x=15

y=3

reciprocal of x=1/x then

sum of reciprocals means 1/x+1/y=2/5

subsitute x=5y for x in 1/x+1/y=2/5 and get

1/5y+1/y=2/5

multiply 1/y by 5/5 to make it 5/5y so you can add since the denomenators (bottom number) are the same

1/5y+5/5y=2/5

6/5y=2/5

multiply both sides by 5y

6=2y

divide both sides by 2

3=y

put this into x=5y so

x=5(3)

x=15

y=3

The graph below shows the value of Edna's profits f(t), in dollars, after t months:graph of quadratic function f of t having x intercepts at 6, 0 and 18, 0 and vertex at 12, negative 36 What is the closest approximate average rate of change for Edna's profits from the 12th month to the 18th month? (1 point) 5.92 dollars per month 3.75 dollars per month Five dollars per month Nine dollars per month

Yesterday Lou and $12.76 selling lemonade and $4.87 selling ice pops at his stand today bought two pizzas for five dollars each how much money does he have left￼

Can somebody who knows how to do this answer both correctly thx!!!!(Will mark as brainliest):D

Which of the following statements is true?10 x 7/2 The product will be less than 10. The product will be greater than 10. The product will be equal to 10.

Multiply. –7 ∙ 8a. –56b. –1c. 1d. 56

Yesterday Lou and $12.76 selling lemonade and $4.87 selling ice pops at his stand today bought two pizzas for five dollars each how much money does he have left￼

Can somebody who knows how to do this answer both correctly thx!!!!(Will mark as brainliest):D

Which of the following statements is true?10 x 7/2 The product will be less than 10. The product will be greater than 10. The product will be equal to 10.

Multiply. –7 ∙ 8a. –56b. –1c. 1d. 56

see attached picture for answer

432 ft3

the answer to that is 144 ft ^3.

Volume = (1/3) * base area * height

= 1/3 * 24 * 18

= 144 ft^3

= 1/3 * 24 * 18

= 144 ft^3

OB. 1/3

OC. -1/3

O D. 3

**Answer:**

3

**Step-by-step explanation:**

3 is the complete oposite of -1/3 in terms of slopes, therefore they are perpendicular to each other.

67% of 1280 is 857.6 substrack it and it's = 422.4

**The actual length of the fence is 215 inches **

**Step-by-step explanation:**

Length of fence in drawing = 3.75 inches

Actual length of the fence = 24 ft

= 288 inches

Scale factor = 288/3.75

= 76.8

Length of fence in drawing = 2.8 inches

Actual length = 2.8 x 76.8

= 215 inches

**The actual length of the fence is 215 inches **

**Answer:**

215 in

**Step-by-step explanation:**

215 in

The length of segments ab is 24