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Licemer1 [7]
3 years ago
14

Sue earns 20$ per hour. How much does she earn in 1/4 of an hour​

Mathematics
1 answer:
lara31 [8.8K]3 years ago
3 0

Answer:

The answer is 5$

Step-by-step explanation:

If he earns 20 dollars in 1 hour, then in 1/4 of an hour he will earn:

Since  1 hour=60 minutes

He earns 20 dollars in 60 minutes

There for he will earn (20/60)=1/3 dollars in one minute

1/4 of an hour=(1/4)×60=15 minutes

To get the amount he earns in 1/4 of an hour or 15 minutes,

=(Number of minutes in 1/4 of an hour)×Amount he earns in 1 minute)=(15×1/3)=5 dollars

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Please help! Find the equation of the line (graph provided in attached picture) Use exact numbers. y =_ x+_ ( _ represent blanks
Dennis_Churaev [7]

Answer:

y = \frac{3}{4}x - 2

Step-by-step explanation:

Equation of a line is given as y = mx + b

Where,

m = slope of the line = \frac{y_2 - y_1}{x_2 - x_1}

b = y-intercept, which is the value at the point where the line intercepts the y-axis. At this point, x = 0.

Let's find m and b to derive the equation for the line.

m = \frac{y_2 - y_1}{x_2 - x_1}

Use the coordinate pair of any two points on the line. Let's use the following,

(0, -2) = (x_1, y_1) => on the line, when x = 0, y = -2

(4, 1) = (x_2, y_2) => on the line, when x = 4, y = 1

Plug in the values and solve for m

m = \frac{1 - (-2)}{4 - 0}

m = \frac{1 + 2}{4}

m = \frac{3}{4}

b = -2 (the line intercepts the y-axis at this point)

Our equation would be =>

y = mx + b

y = \frac{3}{4}x + (-2)

y = \frac{3}{4}x - 2

5 0
3 years ago
Use the discriminant to determine the nature of the roots of the following questions
soldier1979 [14.2K]

Answer:

the function has two distinct real roots.

Step-by-step explanation:

D=b²-4ac    

D<0 No real roots

D=0 One real root

D>0 Two distinct real root.

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    25+12

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Since D is > than 0, the function has two distinct real roots.

6 0
3 years ago
The probability of choosing a blue marble is 25%. you do experiment and draw a marble 200 times (and replacing the marble drawn
rjkz [21]
50 since 200/4 is 50
7 0
3 years ago
What is the percent increase from 250 to 900?
Anon25 [30]

Answer:

1)Percent increase=(increase in amount/original amount)100

2)650/900*100

650/9=72.2%

3 0
3 years ago
Sally is selling handmade bracelets to raise money for breast cancer awareness.She created the given equation to represent her p
Anni [7]

Answer:

I believe it represents the rate at which she will receive profit ?? but I'm not sure

8 0
3 years ago
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