Mathematics Middle School

1) 2(a + 3) = -12
2) 3(p+2) = 18
3) 4(2r +8) = 88
4) 2(3a + 2) = -8
5) 4(k + 3) = 4
Show your work please.

Answers

Answer 1
1)
2(a + 3) = -12
Divide by 2
a + 3 = -6
Subtract 3
a = -9

2)
3(p + 2) = 18
Divide by 3
p + 2 = 6
Subtract 2
p = 4

3)
4(2r + 8) = 88
Dive by 4
2r + 8 = 22
Subtract 8
2r = 14
Divide by 2
r = 7

4)
2(3a + 2) = -8
Divide by 2
3a + 2 = -4
Subtract 2
3a = -6
Divide by 3
a = -2

5)
4(k + 3) = 4
Divide by 4
k + 3 = 1
Subtract 3
k = -2
Answer 2

Answer:

1)-9 2)4  3)7  4)-2 5) -2

Step-by-step explanation:

1) 2(a+3)=-12            2) 3(p+2)=18             3) 4(2r+8)=88          4) 2(3a+2)=-8

2a+6=-12                    3p+6=18                   8r+32=88                6a+4=-8

-12-6=-18                   18-6                            8r=56                       -8-4=-12

2a=-18     18/2                  3p=12  12/3         56/8                       6a=-12   -12/6

a=-9                           p=4                            r=7                           a=-2                          

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Answers

Answer:

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Step-by-step explanation:

If a map has a scale of 1: 500000, then 1 cm on the map is 500000 cm

So 7 cm on the map is 35000000 cm = 350 km

Answer: 350km

Explanation:

1cm on map = 500000cm on ground
1cm on map = 50km

Then 7cm = 350km

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Answers

Hehehehehehejtnevehege
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Answers

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

?

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Answers

Answer:

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Step-by-step explanation

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Step-by-step explanation:

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Answers

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Step-by-step explanation:

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Answers

Step-by-step explanation:

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example say its 0 5 10 _ 20 25

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Answer:

BLICKY

Step-by-step explanation:

PLEASE HELP ME WITH THIS
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Answers

B. 31.5 ft^2 because you find the area of each rectangle and add them and then find the area of the triangle and add it in to get 31.5 ft^2
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​

Answers

Answer:

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Step-by-step explanation:

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ACDG————————————————
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Answer:

Step-by-step explanation:

B

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Answers

Answer:

A

Step-by-step explanation:

V=4/3[tex]\pi r^{3}[/tex]

V=4/3[tex]\pi[/tex][tex](1)^{3}[/tex]

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Answer:

A

Step-by-step explanation:

V=4/3\pi r^{3}πr

3

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3

V= 4.188 or just 4.19

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Answers

Answer:

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Step-by-step explanation:

120 + 90 = 210/504 journey by car

Relative frequency of 90/ 504

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The requried relative frequency of females who get to school by car in relation to the total students at the school is approximately 0.1786 or 17.86%.

What is the relative frequency?

Relative frequency is a measure that indicates the proportion or percentage of times an event occurs in relation to the total number of events. It is calculated by dividing the frequency of an event by the total number of events. The result is a decimal or a percentage.

Here,
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Answers

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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1. when r = 0,
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