MATHEMATICS HIGH SCHOOL

1 Simplify Expression 1.
(D+5)+(d+5)+(d+5)

Answers

Answer 1
Answer:

Answer:

Final Answer: 3d+15

Step-by-step explanation:

d+5+d+5+d+5

5+5+5= 15

d+ d+ d= 3d

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6^4x-5=6^2x solve for “x”

Answers

Answer:

x=1/252

x=0.00396825

Step-by-step explanation:

Hope this helped!!!

SAT HelpJack can paint a house in 5 days, and Richard can paint the same house in 7 days. Working together, how long will it take them to finish the job?

How do you solve this?

Answers

Well, their speeds are (V_1 is Jack's speed, and V_2 is Richard's.
V_1 = (1)/(5) houses/day \n V_2 = (1)/(7) houses/day \n V = V_1 + V_2 = (1)/(5)+(1)/(7) = (7+5)/(35) = (12)/(35)
They, together, can paint 12 houses in 35 days. To get a single house, we only have to calculate (35)/(12) which is very close to 3 (a bit below)

Answer:

In 7*5 = 35 days, Jack can paint 7 houses.

In 5*7 = 35 days, Richard can paint 5 houses.

So in 35 days, the two of them can paint 12 houses. To paint just one house, they'll need 1/12 the time, or 35/12 = 2 11/12 days.

Step-by-step explanation:

What is a financial risk of being a homeowner

Answers

it's a risk being a homeowner because it might be difficult for you to sell a hose to make your profit ,and the home mat would decrease in value

Answer:

is a

Step-by-step explanation:

BC=-17+2x, AB=7, and AC=x-1. Find x

Answers

Answer:

Step-by-step explanation:

-17 + 2x = x - 1

2x = 16

x = 8

While hiking, Grace went up 647 meters above sea level. At the same time, her friend was scuba diving 293meters below sea level. How far apart were they in elevation?
___ meters

Answers

Answer:

940 meters apart

Step-by-step explanation:

Step 1:

Grace = + 647

Friend = - 293

Step 2:

| 647 + ( - 293 ) |

Answer:

940

Hope This Helps :)

Answer:

940 m

Step-by-step explanation:

Above sea level is measured as positive and below sea level is measured as negative.

In order to find the distance between both we need to find the difference between their elevation and depression.

Distance between Grace and her friend

= 647 - (-293)

= 647 + 293

= 940 m

A truck is rented at $40 per day plus a charge per mile of use. The truck traveled 15 miles in one day, and the total charge was $115. Which equation can be used to find the charge x, in dollars, per mile traveled?

Answers

15x+40=115
15x+40-40=115-40
15x=75
15/15 x=75/15
x= 5
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