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USPshnik [31]
3 years ago
14

-10-(-8)+(-4)-20please help

Mathematics
1 answer:
gtnhenbr [62]3 years ago
6 0
-10 - (-8) + (-4) - 20

When subtracting a negative, you add the number.
When adding a negative, you subtract the number.

-10 + 8 - 4 - 20

Do addition and subtraction from left to right.
When adding a negative to a positive, keep the sign of the larger number.
When subtracting from a negative, you add the numbers together and keep the negative sign.

-10 + 8 - 4 - 20
-10 + 8 = -2
-2 - 4 = -6
-6 - 20 = -26
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So I have a problem with a pie chart and I need to find the total amount of people surveyed using the amount of one portion of i
const2013 [10]
42% = 210 so, 
42/100=210/x
Cross multiply-
42x=21000
Divide by 42 on both sides and you get- 500
6 0
4 years ago
a rental company charges a flat fee of x dollars for a floor sander rental plus y dollars per hour of rental. One customer rents
pishuonlain [190]
Take 87-63 = 24, which is the difference of the 2 hours. Divide this by two to get the hourly rate, which is $12.

We can now set up the equation as follows:
4(12) + x = 63
6(12) + x = 87

Now solve for each:
4(12) + x =63
48 + x = 63
x = $15

6(12) + x = $87
72 + x = 87
x = $15


Therefore, the Flat Fee = $15 and the Hourly rate = $12 

3 0
4 years ago
What is the radius for 7 cm, for area and circumference
katrin [286]

<span>C=2πr</span>

where:
<span>C=</span>circumference
<span>r=</span>radius

To find the circumference, substitute your known values into the equation:

<span>C=2πr</span>
<span>C=2π<span>(7)</span></span>
<span>C=14π</span>
<span>C≈43.98 </span>

 the circumference is approximately 43.98 cm. Hope I helped!

4 0
3 years ago
Tony throws the dice once.He also throws a coin to get heads or tails.Two of the outcomes are 1H 2H
aleksley [76]

Answer:

  • <u>1H, 1T, 2H, 2T, 3H, 3T, 4H, 4T, 5H, 5T, 6H, and 6T.</u>

Explanation:

The quetion is:

  • <em>list all the outcomes in the same format </em>
<h2 /><h2>Solution</h2>

Understand the format:

  • first character is the number that appears on the top face of the dice: it can be 1, 2, 3, 4, 5, or 6.

  • second charater is one of two letters that represent the flip of the coin: H for heads or T for tails.

Then, the list of the combinations that represent all the possible outcomes is:

  • 1H, 1T, 2H, 2T, 3H, 3T, 4H, 4T, 5H, 5T, 6H, and 6T.

They are 12 possible outcomes: 6 × 2 = 12: 6 from the 6 possible outmoes of the dice, and 2 for the two possible outcomes of the coin.

4 0
4 years ago
Given that is the angle bisector of A, determine the length of x. (SHOW YOUR WORK PLEASE!!!)
Sunny_sXe [5.5K]

The length of x will be 4 cm if is the angle bisector of A.

<h3>What is an angle bisector?</h3>

A straight line that splits an angle in a triangle into two congruent angles is known as the angle bisector.

Given sides;

AB=12

AE=8

BD=6

DE=x

From the triangle angle bisector theorem;

\rm \frac{BD}{DE} = \frac{AB}{AE} \\\\ \frac{6}{x} =\frac{12}{8} \\\\ x=4

Hence the length of x will be 4 cm.

To learn more about the angle bisector refer to:

brainly.com/question/12896755#SPJ5

#SPJ1

6 0
2 years ago
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