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Luden [163]
3 years ago
14

I will give a thanks

Mathematics
1 answer:
vlabodo [156]3 years ago
3 0
15 times 2 = 30
20 times 2 = 40
40 + 30 = 60 
60 / 6 = 10
so the answer will be 10
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3(x - 4) + 9 = 18<br><br> Step by step (and explanation)
Andrews [41]

Answer:

= 7

Step-by-step explanation:

3(x−4)+9=18

3 − 1 2 + 9 = 1 8

 3 − 3 = 1 8

3  = 1 8+3

3  = 21

x= 21/3

x=7

3 0
3 years ago
Which range of time values describes the entire interval over which she would be interpolating
horsena [70]
Answer: first option 0 to 30 minutes.

Jusitification:

Interpolation is the prediction of an intermediate value using a linear model.

In this case, she has the data for 0, 5, 10, 15, and 30 minutes.

So, she can interpolate between any pair of consecutive data to find an intermediate value.

For example: i) if she wants the value for 20 minutes, she can interpolate between 15 and 30 minutes, ii) if she wants the value for 7 minutes, she can interpolate between 5 and 10 minutes, iii) if she wants the value for 12 mintues, she will interpolate between 10 and 15 minutes.

7 0
4 years ago
The senior classes at High School A and High School B planned separate trips to the indoor
Mazyrski [523]

Answer:

The number of students in each <u>van are 7</u> and number of students in each <u>bus are 23.</u>

Step-by-step explanation:

Let the number of students in each van be 'x' and number of students in each bus be 'y'.

Given:

<u>High School A:</u>

Number of students = 132

Number of buses = 3

Number of vans = 9

As per question,

9x+3y=132-------1

<u>High School B:</u>

Number of students = 205

Number of buses = 8

Number of vans = 3

As per question,

3x+8y=205-------2

Multiplying equation (2) by -3 and adding the result to equation (1), we get:

-3(3x+8y)=-3(205)\\-9x-24y=-615

-9x-24y=-615\\9x+3y=132\\---------\\-21y=-483\\y=\frac{-483}{-21}=23

Now, plug in 23 for 'y' in equation (1) and solve for 'x'. This gives,

9x+3(23)=132\\9x+69=132\\9x=132-69\\9x=63\\x=\frac{63}{9}=7

Therefore, the number of students in each van are 7 and number of students in each bus are 23

7 0
3 years ago
How can you use a rate to compare the costs of two boxes of cereal that are different sizes
liraira [26]
By normally dividing it (the two different size of the boxes
7 0
3 years ago
Read 2 more answers
Solve the inequality. <br> r + 5 &lt; 10
mars1129 [50]
R<5
r has to be less than 5, now doesn't it
7 0
4 years ago
Read 2 more answers
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