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Alenkasestr [34]
3 years ago
12

What is 1 and 2/5× 7

Mathematics
2 answers:
OleMash [197]3 years ago
3 0
7/5 x 7/1 = 49/5 or 9 4/5
VashaNatasha [74]3 years ago
3 0
I'm pretty sure the answer is: 9.8
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Nataly [62]
The answer is ‘describe’
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2 years ago
What will be the cost for 8 hours of work? 10 hours of work?​
andreyandreev [35.5K]

Answer:

<u>Cost = 25 + 50h</u>

cost for 8 hours of work = $425

cost for 10 hours of work = $525

Step-by-step explanation:

The question is as following:

A plumber charges $25 for a service call plus $50 per hour of service write an equation to represent the cost of hiring this plumber​.

what will be the cost for 8 hours of work? 10 hours of work?​

=======================================================

A plumber charges $25 for a service call plus $50 per hour

<u>Cost = 25 + 50h</u>

Where h is the number of hours of service

8 hours of work: h = 8

Substitute with h = 8 at the equation of cost

<u>Cost = 25 + 50* 8 = $425</u>

10 hours of work: h = 10

Substitute with h = 10 at the equation of cost

<u>Cost = 25 + 50 * 10  = $525</u>

6 0
3 years ago
The distance traveled by a car at a constant rate is proportional to the time spent driving. In the equation d = 45t, d represen
OverLord2011 [107]
The constant of proportionality should be 45 miles per hour, and the car should travel 135 miles in three hours.
8 0
3 years ago
A sample of n = 4 scores has SS = 48. What is the estimated standard error for this sample? Group of answer choices
mylen [45]

Answer:

2

Step-by-step explanation:

We have

n = 4 scores

SS = 48

For this question, we are required to find the estimated standard error

To get this, we first solve for the variance

S² = SS/n-1

= 48/4-1

= 48/3

= 16

Then S² = 16

S = √16

S = 4

Then the estimated standard error is given by:

S/√n

= 4/√4

= 4/2

= 2.

The estimated standard error is 2.

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2 years ago
Please Help! Which of the following equations, when graphed, results in the parabola depicted above? (I'll put a screenshot of t
kykrilka [37]

Answer:

B.

Step-by-step explanation:

The zeroes are 0 and 4 and the vertex is at (2, -4).

f(x) = (x - 2)^2 - 4

5 0
3 years ago
Read 2 more answers
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