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never [62]
2 years ago
8

Using the equation 4x - 7 = 13, choose all the steps that are used to solve the equation.

Mathematics
2 answers:
elena55 [62]2 years ago
7 0

Answer:

C,D

Step-by-step explanation:

it is

Mashutka [201]2 years ago
3 0
Answer is •D because of the seburation
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The length around the outside of semicircle O from point L through point M to point N is 14 centimeters. The perimeter of semici
Luden [163]
The area would be 83.67 cm.

A semicircle is half of a circle.  The perimeter of the semicircle would be half of the perimeter (circumference) of the entire circle.  The formula for circumference is:

C=πd

Using our information, we have  

22.92 = 0.5(3.14)d
22.92 = 1.57d

Divide both sides by 1.57:

22.92/1.57 = 1.57d/1.57
14.6≈d

Since the diameter is 14.6, the radius is 14.6/2 = 7.3.

We use the radius for the area of the semicircle:

A=0.5πr²
=0.5(3.14)(7.3)²
=83.67
3 0
3 years ago
Peter’s dog eats 0.3 kilograms of dog food each day. How much dog food will peter’s dog eat in 8 day?
juin [17]

You just multiply 0.3 and 8 to get 2.4. So, peter's dog will eat 2.4 kilograms of dog food in 8 days

3 0
3 years ago
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Hello, I need assistance with the attached problem. My answer was incorrect
Semmy [17]

Answer:

(a) 480 + 1640

Step-by-step explanation:

I don't really know what (b) is

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6 0
3 years ago
Please help me!!!<br> Show work!!!<br> ____ % of 60 is 30
sergey [27]

Answer:

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Step-by-step explanation:

50% is equal to 1/2.

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Which will equation show correctly we write an expression that represents the cost for a pair of shoes that is marked down 20% o
alukav5142 [94]

Answer:

A

Step-by-step explanation:

You can write an expression to represent the total cost of a pair of shoes. The price of the shoes is the variable r. The shoes are marked down 20% or 0.2r. So the new price of the shoes will be r - 0.2r. You will also have to pay a tax of 5% or 0.05 of the new price. This is written as 1.05(r - 0.2r). You can simplify it by doing whats in the parenthesis.

1.05(r - 0.2r) = 1.05r(0.8r) = 0.84r

4 0
3 years ago
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