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Maksim231197 [3]
3 years ago
13

What is three times the sum of a number and 8 is 6?

Mathematics
1 answer:
mars1129 [50]3 years ago
5 0

Answer:

42

Step-by-step explanation:

to find the sum, you need to add, so in this case, we're finding the sum of 8 and 6, so it would be

8+6=14

now, we have to times 14 by 3

14×3=42

so the answer is 42

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100-99+98-97+96-95+...+8-7+6-5+4-3+2-1
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100-99+98-97+96-95+...+8-7+6-5+4-3+2-1\\\\=(100-99)+(98-97)+(96-95)+...+(4-3)+(2-1)\\\\=\underbrace{1+1+1+...+1}_{50}=\fbox{50}

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3 years ago
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Find the area of this irregular figure. Please explain in steps how you did it so I know how to do it for the next question plea
Helen [10]
<h3>Answer:   426 square feet</h3>

Work Shown:

A = area of the rectangle

A = length*width

A = 26*15

A = 390 square feet

B = area of the triangle

B = base*height/2

B = 8*9/2

B = 72/2

B = 36 square feet

C = total area

C = A+B

C = 390+36

C = 426 square feet

7 0
1 year ago
Julianne earned $296 working at a grocery store last week. She earned $8 per hour. How many hours did Julianne work?
hram777 [196]
37 hours
You divide 296 by 8 and then you get your answer


4 0
3 years ago
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erastovalidia [21]

Answer:

1. KLP + PLM = 180 degrees (straight line)

2. 3x + angle PLM = 180 degrees

3. angle PLM = 180 - 3x

4. PMN = P + PLM (Exterior angle)

5. 2x + 72 = x + 180 - 3x

6. x = 27

Step-by-step explanation:

1. Notice that angle KLP + angle PLM is a straight line, so KLP + PLM = 180 degrees (straight line)

2. angle KLP = 3x, so

3x + angle PLM = 180 degrees

3. angle PLM = 180 - 3x

4. PMN = P + PLM (Exterior angle)

5. 2x + 72 = x + 180 - 3x

6. 5 gives 4x = 108, so x = 27

6 0
3 years ago
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Can someone please help me I've been stuck on this for so long​
Vilka [71]

Answer:

x = -3, y=2

Step-by-step explanation:

x+3y =3

3y -2x =12

Solve the first equation for x

x = 3-3y

Substitute this into the second equation

3y -2(3-3y) =12

Distribute

3y -6 +6y =12

Combine like terms

9y -6 =12

Add 6 to each side

9y-6+6 =12+6

9y =18

Divide each side by 9

9y/9 =18/9

y = 2

Now find x

x = 3 -3y

x = 3-3(2)

x = 3-6

x = -3

8 0
3 years ago
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