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krok68 [10]
3 years ago
9

How do I solve 4(2+3)-(6+1)+2

Mathematics
1 answer:
nikitadnepr [17]3 years ago
6 0

Answer: You use the rules of PEMDAS   Parenthesis, Exponents, Multiply, Divide, Add, Subtract

Step-by-step explanation: First solve all equations inside of the parenthesis, so the equation becomes 4(5)-7+2

Then you multiply and the 4 by 5 and the equation becomes  20-7+2

Then you do all the adding and it becomes 20-9

Then subtract and you get 11

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A skyscraper elevator can move one-teeth of a mile in half a minute. What is this speed expressed in miles per minute?
laiz [17]

Answer:

.2 miles per minute or .2x

Step-by-step explanation:

it move one tenth in half a minute so it moves 2 tenths in a minute.

3 0
3 years ago
Each of a regular polygon is 140°,find the number of the sides that ghe polygon has​
Sloan [31]

Answer:

the answer should be 360/36=10 sides

Step-by-step explanation:

A regular polygon is 144 deg the exterior angle is 36 deg.

5 0
3 years ago
Read 2 more answers
A small furniture company manufac- tures sofas and recliners. Each sofa requires 8 hours of labor and $180 in materials, while a
Bad White [126]

Answer:

30 and 20 respectively

Step-by-step explanation:

Let the number of sofas to be built be s and the number of recliners be r.

For the time part, we have the following equation:

8s + 6r = 340

For the money part:

180s + 105r = 6750

Now let’s solve these equations simultaneously.

Let’s change the form of the second equation:

180s + 17.5(6r) = 6750

From the first equation, 6r = 340 - 8s

Insert this into the third equation

180s + 17.5(340-8s) = 6750

180s + 5950 - 140s = 6750

40s = 6750 - 5950

40s = 800

s = 20

Substitute the value into the first equation

8(20) + 6r = 340

6r + 160 = 340

6r = 180

r = 30

4 0
3 years ago
What is the difference between -17 and -7
kari74 [83]

Answer: -10

Step-by-step explanation:

Difference between -17 & -7 should be

-17 - (-7)

-10

6 0
3 years ago
Read 2 more answers
What is the answer of (-3)3 •(-4)5•(-6)3divded by 6to the power of 6
Juli2301 [7.4K]
The answer is 128......
if you expand them
-27 x -1024 x 216 divide by 216 x216
= -27 x -1024 divided by 216
-1024 x -1 divided by 8
= 1024 / 8
=128
5 0
3 years ago
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