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joja [24]
2 years ago
12

Simplify the expression 9m + 4 (12 -m)

Mathematics
2 answers:
uranmaximum [27]2 years ago
7 0
Well the 4 would have to be distributed into the 12 and m so you would have 9m+48-4m.
Then you would have to take 9m and subtract 4m from it so it would be 5m+48 and that would be your answer!!! 
Hope it helps
dlinn [17]2 years ago
6 0
<span>9m + 4 (12 -m) 
= 9m + 48 - 4m
= 5m + 48

hope it helps</span>
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Jemma is three times as old as Angie. Five years from now the sum of their ages will be 34 years. What are their present ages?
Lapatulllka [165]

Answer: Angie = 6, Jemma = 18

<u>Step-by-step explanation:</u>

Let x represent the current age of Angie

              Current Age           Age 5 years from now

Angie:            x                              x + 5

Jemma:        3x                            3x + 5

5 years from now the sum of their ages is 34

                  (x + 5) + (3x + 5) = 34

                               4x + 10 = 34

                               4x        = 24

                                 x         = 6

Angle's current age is x = 6

Jemma's current age is 3x = 3(6) = 18

5 0
3 years ago
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Jake plotted an equivalent ratio on the coordinate grid below:
MakcuM [25]

Answer:

(A) If the number of cups of cereal is 40, then the number of cups of raisins will be 10.

Step-by-step explanation:

5 0
2 years ago
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Determine the sample size required to estimate the mean score on a standardized test within 4 points of the true mean with 98% c
Darina [25.2K]

Answer:

67

Step-by-step explanation:

You have to use fractions to show your work and I'm not going to do that but just know that it is the answer.

3 0
2 years ago
Jacob decided to ride his bicycle across the country during his 2-month summer vacation. the route he took from washington, dc t
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Step 1: Assign variable for the unknown that we need to find.

Let ' x ' be the number of miles traveled by Jacob so far (His distance from starting point)

Step 2: Use the sentence given to set up an equation

Sentence 1: "His distance from his starting point was exactly 100 miles more than three times the distance remaining until the finishing point"

Total distance is 2800 miles, if his distance from the starting point is 'x', then remaining distance can be represented by 2800 - x.

Using the sentence we can write the below equation...

x = 100 + 3(2800 - x)

Distributing 3 in the right side of the equation, we get...

x = 100 + 8400 - 3x

Adding 3x on both sides of the equation, we get...

x+3x = 8500

Combine like terms in the left side of the equation, we get...

4x=8500

Dividing 4 on both sides of the equation, we get...

\frac{4x}{4} =\frac{8500}{4}

Simplifying the fraction on either side of the equation, we get...

x=2125miles

Conclusion:

Out of the 2800 miles, Jacob travelled a distance of 2125 miles and remaining miles that he need to cover will be <u>675 miles</u>.

3 0
2 years ago
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