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allsm [11]
3 years ago
6

How do you simplify this expression? -12 divided by 3•(-8+(-4)^2-6)+2

Mathematics
1 answer:
stepan [7]3 years ago
5 0

I good accumulator to use would be symbolab.com

The answer would be 3072/5629

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Solve for the value of d. <br>​
Yuki888 [10]

Answer:

d+7+3d+5=180

4d+12=180

4d=180-12

4d=168

d=42

5 0
2 years ago
a television with a 5:4 screen shows an image with a ratio of 20:12 which creates a letter boxed image. What percent of the scre
Grace [21]

Answer: 75\%

Step-by-step explanation:

You know that the ratio of the television's screen is 5:4 . This ratio can be also written as the following fraction:

\frac{5}{4}

The television shows an image with a ratio of 20:12 which can be also written as a fraction:

\frac{20}{12}

Set up the following proportion and solve for "x":

\frac{20}{x}=\frac{5}{4}\\\\x=\frac{4*20}{5}\\\\x=16

Now, in order to find the percent of the screen area occupied make the following division:

\% occupied=\frac{12}{16}*100=75\%

6 0
3 years ago
The number of girls in cobbs class is 2 less than 3 times the number of boys. She has 26 students in her class how many are boys
Natalka [10]

Answer:

7 are boys

Step-by-step explanation:

Make a system of equations where g is for girls and b is for boys.

b+g=26

g=3b-2

Substitute "3b-2" in for "g" in the first equation.

b+(3b-2)=26

Rewrite without the parentheses because it's addition and not multiplication.

b+3b-2=26

Combine like terms.

4b-2=26

Add 2 to both sides.

4b=28

Divide by the coefficient of the variable to get it alone.

b=7

3 0
3 years ago
What is the reciprocal of 6.5?
Mrrafil [7]
6.5 is equal to 65/10 the reciprocal of that is 10/65=2/13
7 0
3 years ago
Read 2 more answers
Choose the correct Triangle Congruence Theorem
Svetlanka [38]

Answer:

ASA

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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