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V125BC [204]
2 years ago
10

Solve for x. Write the reasons next to each step. (2x - 6) (x + 40)

Mathematics
1 answer:
solniwko [45]2 years ago
3 0

Answer:

The answer for first one is,

2(x - 3)

sorry I don't know the answer for second one.

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. A building in the shape of a rectangular prism needs to be painted. Some facts about the building are shown below. The buildin
Softa [21]

Answer:

(2)(120)(80) + (2)(120)(50) - (4)(60)(5²)

Step-by-step explanation:

The lateral faces of the building are the 4 sides of the building consisting:

2 rectangles of 120 ft by 80 ft

Area of the two rectangular faces = (2)(120)(80)

And

2 rectangles of 120 ft by 50 ft

Area of the two rectangular faces = (2)(120)(50)

✔️Total lateral surface area of the building = (2)(120)(80) + (2)(120)(50)

Note: we are asked to find the expression that represents the total surface area that needs to be painted given that there are 60 windows on each lateral face of the building of the shape of a square with side lengths of 5 ft.

Therefore, the total lateral surface area of the building that will be painted = total lateral surface of the building - total area covered by the 60 windows on each face of the building

Surface area covered by 60 windows in the 4 lateral face of the building = (4)(60)(5²)

✅total lateral surface area of the building that will be painted = (2)(120)(80) + (2)(120)(50) - (4)(60)(5²)

6 0
2 years ago
Beth won 45 lollipops. She gave away some and now she has 28 remaining. How many did she give away?
lapo4ka [179]
Just subtract 45 - 28 = 17 lollipops

Hope this helps!!!
4 0
3 years ago
Read 2 more answers
If there are 6 people, and each person has 2 coins, there are __ times as many coins as people.​
never [62]

Answer:

2

Step-by-step explanation:

6x2=12 12/6=2

3 0
2 years ago
$149 guitar; 29% discount​
Vikki [24]
Divide number of guitars by 100% and multiply into discount given



149/100 x 29

1.49 x 29

43.21



$43.21 had been removed

Therefore $105.79 is the guitar cost after discount



Hope it was useful ☻


5 0
3 years ago
What is the distance between points A and B? (Use only digits 0-9 to write the distance.)
qwelly [4]

Answer:

8

Step-by-step explanation:

A is on the negative side so you count the distanse as -6 -5 -4 so on and then you get to 0 and then its 12345678

3 0
2 years ago
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