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Anika [276]
3 years ago
7

Solve by using distributive property. -3(m - 2) = 21

Mathematics
2 answers:
Bingel [31]3 years ago
8 0

Answer:

m=-5

Step-by-step explanation:

distribute -3: -3m+6=21

subtract 6 from both sides: -3m=15

divide by negative three: m=-5

Vanyuwa [196]3 years ago
5 0

Answer:

m = -5

Step-by-step explanation:

-3(m-2)=21

-3m + 6 = 21

-3m = 15

         15

m = --------

         -3

m = -5

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Convert the following measurements.
stepan [7]
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1 cubic yard-------- > 27 cubic feet
2---------------------- X
x=2*27=54 cubic feet

</span><span>b. 135 cubic feet to cubic yards
</span>1 cubic yard-------- > 27 cubic feet
x----------------------- 135
x=135/27=5 cubic yard

c. 6,912 cubic feet to cubic inches
1 cubic feet--------------- > 1728 cubic inches
6912 cubic feet------------- x
x=11943936 cubic inches

<span>d. 279,936 cubic inches to cubic feet
</span>1 cubic feet--------------- > 1728 cubic inches
x------------------------------ 279,936 cubic inches
x=162 cubic feet

2) <span>Solve the following addition problem. Remember to carry as necessary.

7 cu. yd. 9 cu. ft. 134 cu. in. + 1 cu. yd. 12 cu. ft. 200 cu. in.
</span>7 cu. yd
9 cu. ft-------- > 9/27=0.33333 cu yd
134 cu. in-----> 134*2.1433e-5=0.00287
1 cu. yd
12 cu. ft------- 12/27=0.44444 cu yd
200 cu. in----200*2.1433e-5=0.00429 cu yd

(7+0.33333+0.00287)+(1+0.44444+0.00429)=8.78493 cu yd

3 <span>Solve the following subtraction problem. Remember to borrow as necessary.

9 cu. yd. 113 cu. in. – 4 cu. ft. 129 cu. in.
</span>9 cu yd
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4 <span>Solve the following multiplication problem.

11 cu. yd. 17 cu. in. × 135
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(11+0.00036)*135=1485.0486 cu yd

5 <span>What’s the capacity of a 3 cubic foot carton in cubic inches?
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6 
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7 
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8 
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1 gallons will fill --------------- > 231 cu in of space
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11 
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12 
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5 0
4 years ago
5. At a classroom costume party,
Alenkasestr [34]

The required simplified value of b + g is 21.


Given that,

At a classroom costume party, the average age of the b-boys is g, and the average age of the g girls is b.
The average age of everyone at the party (all these boys and girls, plus their 42- year-old teacher) is b+g,

<h3>What is average?</h3>

The average of the values is the ratio of the total sum of values to the number of values.

Here,

The average age of the b-boys is g.
The average age of the g-girls is b.
The average age of everyone at the party (all these boys and girls, plus their 42-year-old teacher) is b+g,

Now,
average of  n = 3 (b , g , b+g)
Average =  g + b + 42 / 3
b + g = (b + g + 42 ) / 3
3b + 3g = b + g +  42
3b - b + 3g - g = 42
2b + 2g = 42
2 (b + g) = 42
b + g = 21

Thus, the required simplified value of b + g is 21.

Learn more about average here:

brainly.com/question/24057012

#SPJ2


6 0
2 years ago
Read 2 more answers
Will mark as brainliest pls answer quick
klemol [59]
I think it’s E) and F)
4 0
4 years ago
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Why is 6/6 equivalent to 6
Elena-2011 [213]
Hey There!

\frac{6}{6} does not equal to six, because when you see fractions with the same numerator and denominator you divide, so 6/6 equals one. Therefore, <span>\frac{6}{6} does not equal to one.
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Have A Brainly Day :)
8 0
4 years ago
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Barry is building a fence around rround his bacyard. The backyard is in the shape of a rectangle and the longest side of the yar
STatiana [176]

Answer:

10m

Step-by-step explanation:

Recall that the perimeter of a rectangle

= (2 x Long Side) + (2 x Short Side)

we are given that each of the long side = 20m and the perimeter is 60m

substituting these into the equation,

60 = (2 x 20) + (2 x Short Side)

60 = 40 + (2 x Short Side)      (subtract 40 from both sides)

60-40 = (2 x Short Side)

(2 x Short Side) = 20   (divide both sides by 2)

Short Side = 20 / 2 = 10m

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3 years ago
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