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Aloiza [94]
4 years ago
6

11. The regression equation y=2x + 8 represents how many minutes a sound will last after applying x pounds of pressure to the sy

stem. If 4 pounds are applied, how long should we expect the sound to last.
Mathematics
1 answer:
Sidana [21]4 years ago
8 0
Then y=2(4)+8
          =8+8
          =16

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A clerical worker takes 2 times as long to finish a job as it does an executive secretary. Working​ together, it takes them 6 hr
malfutka [58]

Answer:

<h2>18 hours</h2>

Step-by-step explanation:

This problem is on Combined work rate

Step one:

given data

let the secretary take x hours to finish one job

so the clerical worker will take 2x hours to finish one job.

Both of them working together will take 6 hours

Step two:

The combined work formula is

T/A+T/B=1

Where T= time working together

A= time the Clerical worker spent alone

B= time the secretary spent alone

substituting we have

6/2x+6/x=1

solve for x

6+12/2x=1

18/2x=1

9/x=1

cross multiply

x=9 hours

the clerical worker take 2x hours

2*9= 18 hours

3 0
3 years ago
Solve the literal equation for the given variable<br> n =4/5(m+7); m
Step2247 [10]

Answer:

<h2>m =  \frac{5n}{4}  - 7</h2>

Step-by-step explanation:

<h2>n =  \frac{4}{5} (m + 7)</h2>

First of all multiply both sides by 5

That's

<h3>5n = 5 \times  \frac{4}{5} (m + 7) \\ 5n = 4(m + 7)</h3>

<u>Next divide both sides by 4</u>

That's

m + 7 =  \frac{5n}{4}

Subtract 7 from both sides to make m stand alone

We have

<h3>m + 7 - 7 =  \frac{5n}{4}  - 7</h3>

We have the final answer as

<h3>m =  \frac{5n}{4}  - 7</h3>

Hope this helps you

7 0
3 years ago
EXPERTS/ACE/GENIUSES
qwelly [4]
SF = 1/2

so image will be smaller 

answer is first one
(2,3) (4,2)(3,1)

8 0
3 years ago
The cheerleader section is on the basketball court. Each row requires a section of floor that is 1 ¾ yards by 3 ⅓ yards. How man
Lady_Fox [76]

Answer:

The area of the floor space is equal to 5.83 sq yards.

Step-by-step explanation:

Given that,

Each row requires a section of floor that is 1 ¾ yards by 3 ⅓ yards.

We need to find how many square yards of floor space are taken up by one row of cheerleaders.

We know that, the area of a rectangle is given by :

A = lb

So,

A=\dfrac{7}{4}\times \dfrac{10}{3}\\\\A=5.83\ yards^2

So, the area of the floor space is equal to 5.83 sq yards.

5 0
3 years ago
A person tosses a coin 9 times. In how many ways can he get 3 heads?
Anna71 [15]

Answer: if he/she tosses the coin 9 times i am pretty sure he/she out of 5/9 he/she will get heads

Step-by-step explanation:

1 if he flips the coin 9 times and it spins and it flips i am pretty sure a couple times he/she will get tails or heads 2 but there is a way for him/her to get heads it flips and spins he/she is most likey to get heads 3 if he/she flips the coin and the coin keeps going the coin will flip and he/she will get heads hope this helps you :)

4 0
3 years ago
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