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harkovskaia [24]
3 years ago
8

Order of Operation

Mathematics
2 answers:
Sphinxa [80]3 years ago
4 0

<em><u>45(x)-20 </u></em>

x=hours

7 hours

x=7

<em><u>45(7)-20 =295</u></em>

tangare [24]3 years ago
3 0

Answer:

y = 45(7) - 20

Step-by-step explanation:

Money earned: 45x.

Money spent: 20

Total money: 45x-20

In this case,  if he worked 7 hours, he would make a total of 45(7)-20, or 295 dollars for the day.

Let me know if this  helps!

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Brenda was going to sell all of her stamp collection to buy a video game after selling half of them she changed her mind she the
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Answer:

60 stamps

Step-by-step explanation:

Has 33 now. Before adding 13 stamps, she had (33-13) 30. This is half of her total, since she already sold half. To get the whole, multiply 30 by 2. 60 She started with 60

4 0
3 years ago
At Westside Middle School, 10 percent, or 140 students, participate in soccer. How many students are in the school? Check all th
Alexeev081 [22]

Answer:

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Step-by-step explanation:

5 0
3 years ago
MJ solved the equation -5x - 16 = 5
Andrei [34K]

Answer:

Step-by-step explanation: He add 16 together you are not suppose to add 16 you are suppose to add 5 together so instead of 16 + 16 you do 16+ 5

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3 years ago
The length of one side of a regular pentagon is 18.3 cm. What is the perimeter of this pentagon? 
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4 years ago
Find the Total Surface area of a Pyramid. Its base is a regular hexagon 4cm on a side. its height is 8 cm. Round off to nearest
oksano4ka [1.4K]

Answer:

The total surface area of a regular hexagonal pyramid is 146.2 cm².

Step-by-step explanation:

The base is a regular hexagon 4cm on a side. its height is 8 cm.

The total surface area of a pyramid with regular hexagon base

A=\frac{3\sqrt{3}}{2}a^2+3a\sqrt{h^2+\frac{3a^2}{4}

Where, a represents the base edge and h represents the height of the pyramid.

The area of given regular hexagonal pyramid is

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The total surface area of a regular hexagonal pyramid is 146.2 cm².

8 0
3 years ago
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