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katrin [286]
3 years ago
5

Jimmy is selling used books at a yard sale. A customer buys 9 books at a cost of $0.75 each and pays with a $20.00 bill. Jimmy m

ust determine c, the amount of change in dollars he should give the customer. Which equation represents c?
Mathematics
2 answers:
kompoz [17]3 years ago
3 0

Answer:

c = 20.00 - 9(.75)

Step-by-step explanation:

gulaghasi [49]3 years ago
3 0

Answer:  the equation will look like: c=13.25=6.75-20.00=9x0.75

Step-by-step explanation: first you will multipy 0.75 by 9 and you will get 6.75. then you will subtract 20.00- 6.75 and get 13.25. he will give the customer $13.25 back.

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Simplify 659/8 . What is the answer rounded to the nearest whole number? 82 83 84
fredd [130]
659 divided by 8 = 82 R3.

So the answer is 82.
4 0
4 years ago
When converting 750 ounces to pounds what unit would you place in the denominator of your ratio
kumpel [21]

Ounces would be in the denominator of your ratio.

Converting ounces to pounds you would simply divide by 16 :)

Have a great rest of your day! Good luck!

6 0
4 years ago
Can someone please help me with this question?
amid [387]

Answer:

Answer: Function A is represented by the quadrant

Step-by-step explanation:

4 0
3 years ago
13
zepelin [54]

Answer:

The required equation is: \mathbf{f(x)=\frac{3}{4}x-\frac{29}{4}}

Step-by-step explanation:

We need to find equation from the table given

x     f(x)

3     -5

7     -2

11     1

15    4

We can write equation in the form of y=mx+b

where m is slope and b is y-intercept.

Finding Slope

We can used the slope formula to find slope: Slope=\frac{y_2-y_1}{x_2-x_1}

From the table we have: x_1=3, y_1=-5, x_2=7, y_2=-2

Putting values and finding slope

Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{-2-(-5)}{7-3} \\Slope=\frac{-2+5}{7-3}\\Slope=\frac{3}{4}

So, we get slope m=\frac{3}{4}

Now, finding y-intercept

Using the slope m=\frac{3}{4} and point (3,-5) we can find y-intercept

y=mx+b\\-5=\frac{3}{4}(3)+b\\-5=\frac{9}{4}+b\\b=-5-\frac{9}{4}\\b=\frac{-5*4-9}{4}\\b=\frac{-20-9}{4}\\b=\frac{-29}{4}

The y-intercept is b=\frac{-29}{4}

So, the equation having slope m=\frac{3}{4} and y-intercept b=\frac{-29}{4} will be:

y=mx+b\\y=\frac{3}{4}x-\frac{29}{4}

The required equation is: \mathbf{f(x)=\frac{3}{4}x-\frac{29}{4}}

6 0
3 years ago
At a 3​-mile ​cross-country race, an athlete runs 2 miles at 6 mph and 1 mile at 12 mph. What is the​ athlete's average​ speed?
Tom [10]

Answer: the average speed is 7.5 mph or at least im pretty sure

Step-by-step explanation:

This is because if you make the 2 miles at 6 mph to 1 mile at 3 mph then you get 1 mile at 3mph and 1 mile at 12 mph. now that you have the unit rates of these you can add them. 1 + 1 = 2 miles and 3 + 12 = 15 mph now divide this by two and you get 7.5 mph per mile.

I hope this helped, if it did could you give me a good rating? lol

8 0
3 years ago
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