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qwelly [4]
3 years ago
12

Simplify the expression using the order of operations. 3 (8-4)2 + 7.9

Mathematics
2 answers:
OlgaM077 [116]3 years ago
8 0

Answer:31.9

Step-by-step explanation:

Jlenok [28]3 years ago
6 0
8-4=4 3*4=12 12*2=24 24+7.9=31.9
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Work the following pricing problems for services rendered. (For all calculations use hundredths.)
Lesechka [4]

Answer:

Hourly Rate = $12.22 per hour

Step-by-step explanation:

\text{Labor Time = }4\tfrac{1}{2}=4.5\thinspace{ hours}

Overhead Rate = 95%

Retail price of parts = $134.75

Total cost of job = $241.98

Cost of labor = Total cost - Retail price

                      = 241.98 - 134.75

                      = $107.23

Now, labor works for 4.5 hours and ears a total amount of $107.23

\implies\text{Amount earned in one hour or hourly rate = }\frac{107.23}{4.5}\\\\\implies \text{Hourly rate = }\$23.83\text{ per hour}

Now, Labor will get 95% overhead rate

⇒ The labor is getting 100% already but an overhead of 95% is also given

\text{So, Hourly Rate = }\frac{23.83}{1+0.95}\\\\\bf\implies\textbf{Hourly Rate = }\$12.22\textbf{ per hour}

3 0
3 years ago
If the area of a rectangle is w^2 - 8w - 9, which of the following could be the side length of the rectangle?
lorasvet [3.4K]

Answer:

w+8 is the length of rectangle

8 0
3 years ago
Writing lan's car can go 180 miles on 5 gallons of gas. During a drive last weekend, lan used
MrRissso [65]

Answer:

288 miles

If we have the distance, we divide by 36 instead to find how many gallons of gas he used.

Step-by-step explanation:

180/5=36 miles per gallon

8 gallonsx36 miles per gallon=288 miles

pls mark brainliest

6 0
3 years ago
Consider the sequence: 12, 17, 22, ... , ... , .... What is the 405th term of this sequence?
Mice21 [21]
A_n= a₁+(n-1)d

a₁ first term

n terms

d distance between each value

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7 0
3 years ago
Read 2 more answers
Write your answer as a whole number or a decimal
Lynna [10]

Answer:

minutes/mile

minutes=7.5-2.5

=55

55/10

5.5 minutes per mile

5 0
2 years ago
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