May I know this answer?

Can somebody help me with 6 and 7 and show the work for it? thank you

sineoko [7]

Answer:

Answer For Number 6 is $30

Step-by-step explanation:

We can find how much molly would save by first finding out how much 20% of $275 is. We can do that by multiplying 275 by 0.20 since 0.20 is 20% in decimal form

$275*0.20 = 55$

Now that we know 20% of 275, we can find the price of the microwave at store B by subtracting 55 from the original price.

$275 - 55=220$

Now we can find how much Molly would save by subtracting our discounted price from the price of the microwave from store A

$250-220=30$

Hence, the amount she would save is $30

4 0

2 years ago

Mrs. Magdalino kept records on how much she spent on gasoline and the maintenance of her car. She found that it cost $485 to dri

algol [13]

Answer:

C = 0.97m
$1164 for 1200 miles
845 miles for $820

Step-by-step explanation:

Given a car's cost of operation is $485 for 500 miles, you want an equation relating cost for m miles, and solutions to that equation for 1200 miles, and for a cost of $820.

The cost per mile is found by dividing the cost by the associated number of miles:

$485/(500 mi) = $0.97 /mi

<h3>Equation</h3>

The equation for the cost will show the cost as the cost per mile multiplied by the number of miles:

C = 0.97m . . . . . where C is cost in dollars for m miles driven

<h3>1200 miles</h3>

The cost for driving $1200 miles will be ...

C = 0.97(1200) = $1164

The cost of driving 1200 miles is $1164.

The number of miles that can be driven for a cost of $820 is ...

820 = 0.97m

m = 820/0.97 = 845.36