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shusha [124]
3 years ago
13

I don't understand how

Mathematics
2 answers:
olga nikolaevna [1]3 years ago
8 0
30 ft should be the answer
Shtirlitz [24]3 years ago
5 0
13 might be the answer
mentally did it
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Solve the equation: 5.1 - 7x = 9.1
bonufazy [111]

Answer:

Order summands

2

Subtract

5

.

1

5.1

5.1

from both sides of the equation

3

Simplify

4

Divide both sides of the equation by the same term

5

Simplify

Step-by-step explanation:

6 0
3 years ago
-2 = K+7/3 find for k
Likurg_2 [28]

Answer:

k = -13/3

Step-by-step explanation:

Step 1: Flip the equation.

k + 7/3 = -2

Step 2: Subtract 7/3 from both sides.

k+ 7/3-7/3 = -2 - 7/3

k= -13/3

Hope this helps!

5 0
3 years ago
HELP ME PLEASE!!<br><br> Which equation is the exponential regression equation?
AveGali [126]

Answer:

Step-by-step explanation: An exponential regression is the process of finding the equation of the exponential function that fits best for a set of data. As a result, we get an equation of the form y=abx where a≠0 .

4 0
2 years ago
Together, Aanya and Krish can wash and wax Aanya's car in 50 minutes. Alone it takes Krish ten minutes more than Aanya. To the n
Leto [7]

Answer:

95 ; 105

Step-by-step explanation:

Let :

Aanya's time = x

Krish's time = x + 10

Together = 50

Hence

Aanya's rate = 1/x

Krish's rate = 1/(x + 10)

Together rate = 1/50

Hence,

1/x + 1/(x + 10) = 1 / 50

((x + 10) + x) / x(x + 10) = 1/ 50

(2x + 10)/ x² + 10x = 1/50

50(2x + 10) = x² + 10x

100x + 500 = x² + 10x

x² + 10x - 100x - 500 = 0

x² - 90x - 500 = 0

Using the quadratic equation solver :

x = 95.24 ; x = - 5.24

Time can't be negative

Hence, x = 95 (nearest minute)

It takes Aanya 95 minutes Alone a ND

Krishna (95 + 10) = 105 minutes alone

6 0
3 years ago
An employee earns $175 for 15 hours work.<br> Find the constant of variation.
LiRa [457]

Answer:

11.67

Step-by-step explanation:

Given: Employee earn $175 for 15 hours

We know, the constant of variation means the rate of change.

To know The constant of variation, we need to find how much employee earn each hour.

∴ Constant of variation= \frac{Total\ earning}{Total\ working\ hours}

Constant of variation= \frac{175}{15}= 11.666

∴ Constant of variation= 11.67. (rounding off)

8 0
3 years ago
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