Mary purchased 4 tires by mail order. She paid $63.40 per tire plus $6.80 per tire for shipping and handling. There is no sales tax, because the tires were purchased out of state. She also had to pay $7.56 per tire for mounting and balancing. At a local store, Mary's total for the 4 tires with mounting and balancing would be $368 plus 88% sales tax. How much did Mary save by purchasing the tires through the mail?

Answers

Answer 1

mail : 4(63.40 + 6.80 + 7.56) = 4(77.76) = 311.04
the store : 368(1.88) = 691.84

so Mary saved (691.84 - 311.04) = 380.80 <==

Answer 2

The answer I got was $380.80 for the total amount that she saved. I did $63.40 times 4, $6.80 times 4, and $7.56 times 4. Then I added the numbers and subtracted the result from $368 plus the 88% sales tax.

Related Questions

how do you solve for missing leg of the Pythagorean theorem

Answers

if you are solving for the hypotenuse, use
a² + b² = c²

if you are solving for a side, use
c² - a² = b²

hypotenuse = c
other sides = a, b

hope this helps

what expression is equivalent to 2.2-2.5?

Answers

Hi Camrynb10705oxknsv!
So let's take a look at the answers they give. A is 2.5 - 2.2 and all that is is switching the numbers so that isn't right. B they do addition instead of subtraction so that can't be right. C they do 2.2 + (-2.5) and when you add a negative number it's like subtraction because a negative number is under 0 and so your adding a number under 0 so you go down. So the answer is C.
If you need me to explain it different let me know. Hope this helps!

The answer is C. How we know:
The origional expression would equate to -0.3
The reason A is incorrect is that you can not change the order of subtraction. This answer equates to 0.3.
The reason B is incorrect is that adding is not the same as subtracting. This answer equates to 4.7.
The reason D is incorrect is that subtracting a negative is the same as adding. This would equate to 4.7
The reason C is correct is that adding negative is the same as subtracting. This would equate to -0.3.

there are four cups in a quart and 4 quarts in a gallon how many cups are in a 5-gallon jug of water

Answers

80 cups is the answer to this problem

80 because 5 gallons is twenty quarts which converts to 80 cups

For his phone service, jim pays a monthly fee of $11, and he pays an additional $0.04 per minute of use. The least he has been charged in a month is 61.84. What are the possible numbers of minutes he has used his phone in a month?

Answers

Well let's see first 61.84-11 as it is a constant which you then get 50.84. Now take the 50.84 and divide it by .04 per minute. which you should get 1271 minutes.

Answer: 1271 minutes

a plane takes off at 6 am, traveling north at 270 mph. a jet takes iff at 7 am, traveling north at 460 mph. at what time will the jet overtake the plane?

Answers

Remember the distance-rate-time f[tex]t = 0.704 hrs[/tex]ormula:
[tex]d=rt[/tex]

Now, if the jet overtakes the plane, then at some point their distances will be the same. This means their rate * time will be equal.

Let's call the rate for the first plane, r1, and the rate for the second plane, r2. If we set time as t, then we can create ourselves a formula. However, we have to add one to the time of the first plane since it leaves one hour earlier. In the end, we should have something like this:
[tex]r_{1}(t+1)= r_{2}t [/tex]

If you plug in the values, you should get:
[tex]t = 0.704h[/tex]

After a 20% increase the new price of radio is $78.00. What was the original price of the radio

Answers

The original price was 65.

78/ 1.2 = 65

I need to find the LCD or LCM for this equation I Also need with n is please help ... 3/4n-18=1/4n-14

Answers

3/4n - 18 = 1/4n - 14

We need to isolate "n"

So, add 18 to both sides.

3/4n = 1/4n - 14 - 18

Then, subtract 1/4n from both sides.

3/4n - 1/4n = -14 - 18

*Note : Since "n" has the same denominator (bottom number in a fraction), then we simply need to look at the top numbers (numerators) and simplify those.

Simplify.

2/4n = -32

Then, multiply both sides by 4 so that we get rid of fractions.

4 · 2/4n = -32 · 4

Simplify.

2n = -128

Now, divide both sides by 2.

2 ÷ 2n = -128 ÷ 2

Simplify.

n = -64

~Hope I helped!~

:)

you have 5 buttons. which is the greatest number of buttons you can give away?

Answers

5 is the greatest I'm assuming

I'm going to say 5 buttons is great number you can give away

#24 please help I’m very confused on how to do this

Answers

(55 km/h) * (1 mi)/(1.609344 km) ≈ 34.2 mi/h

_____
You can do units conversions pretty easily by multiplying by a conversion factor whose value is 1. That is, since
.. 1 mi = 1.609344 km
dividing by the left side we have
.. (1 mi)/(1.609344 km) = 1
This factor has the convenience that it will cancel km and give mi when multiplied by some number off km. That is what we did above. (The "per hour" just went along for the ride. It did not get involved in the units conversion.)

write two verbal expressions for n-5

Answers

A number less than five

n minus five

If you invest $3,900 at a 7.83% simple annual interest rate, approximately how long will it take for you to have a total of $10,000?
a.
12 years
b.
15 years
c.
20 years
d.
30 years

Answers

It's c 20 years hope this helps:)

we know that

The simple interest formula is equal to

[tex]A=P(1+rt)[/tex]

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

[tex]t=?\ years\\ P=\$3,900\\ A=\$10,000\\r=0.0783[/tex]

substitute in the formula above

[tex]10,000=3,900(1+0.0783t)[/tex]

Solve for t

[tex]10,000/3,900=(1+0.0783t)[/tex]

[tex](10,000/3,900)-1=0.0783t[/tex]

[tex]0.0783t=1.5641[/tex]

[tex]t=1.5641/0.0783[/tex]

[tex]t=19.98\ years[/tex]

therefore

the answer is the option C

[tex]20\ years[/tex]

8b-12 for b =2.1
We have to evaluate it and idk how

Answers

it will look.like this 8(2.1)-12 8 times 2.1 then subtract answer by 12

To evaluate this situation, you need to look at the given information. We know that b is 2.1 and that the expression b is put into is 8b-12. So, just plug in for b.
8*2.1 - 12. Use the order of operations to ensure a correct answer. So, multiply first. 8 * 2.1 is 16.8. Nou, subtract. 16.8 - 12 = 4.8. So, the final answer is 4.8

Rosa scored 174,325points playing a video game.to the nearest ten thousand,how many points did Rosa scored?

Answers

170,000 points. Hope this helps!

170000 points should be the answer

how do you solve p= 6s solve for s

Answers

Answer is s=p/6 (fraction)

p=6s
÷6 ÷6 divide 6 by both side
p/6=s

The expression can be written in terms of p after making the subject as s the expression is s = p/6.

What is an expression?

It is defined as the combination of constants and variables with mathematical operators.

It is given that:

The expression is:

p = 6s

To solve the above expression in terms of p make the subject as s

As we know, the arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

Divide by 6 on both sides:

p/6 = 6s/6

p/6 = s

s = p/6

Thus, the expression can be written in terms of p after making the subject as s the expression is s = p/6.

Learn more about the expression here:

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Which of the following has the least value?

Answers

it most likely going to be A.

What is the answer to 2/9-2/15

Answers

Hey there!

Common denominator- 45

Multiply 2/9 by 5/5= 10/45 and multiply 2/15 by 6/45
10/45-6/45= 4/45

So, therefore, your answer is 4/45

8+x/-9=9

Please solve this equation and show your work!

Answers

8+(x/-9)=9 subtract 8

x/-9= 1 multiply by -9

x= -9

(8+x)/-9=9
-9×9=8+x

-81-8=x

X=-89

Which describes the difference between the two sequences? First Sequence: 1, 6, 36, 216 ... Second Sequence: 3, 6, 9, 12, ...

Answers

The difference between the sequence is that the second sequence counts by 3 and the 1st sequence it doesn’t

sequence one multiplies each number by 6 to get the next number in the sequence while the second sequence adds 3 to each number to get the next in the sequence.

What is 3v+6v(4v-2v)

Answers

3v + 6v(4v - 2v)
3v + 6v(2v)
3v + 12v²

3v(4v + 1) is your answer

hope this helps

9v(2v) which equal 18v

Please help me to answer these questions!! Thank you in advance.

1 - A string is cut into three pieces in the ratio 5 : 4 : 2. If the longest piece of string is 87 cm longer than the shortest piece of string, find the length of the string before it is being cut.
=

2- A bookstore sold fiction books, textbooks and workbooks last month in the ratio 6 : 5 : 9 respectively. If the store sold 1350 workbooks, what was the total number of fiction books and textbooks sold that month??
=

Answers

1. 5:4:2
5x=87
x=17.4

4(17.4)=69.6
2(17.4)=34.8
add all the lengths together to find the amount of total string
87+69.6+34.8= 191.4

im not sure how to work the second one out.

Final answer:

The total length of the string before being cut was 319 cm. The bookstore, given the ratio of 6:5:9 for fiction books, textbooks, and workbooks, sold a total of 1650 fiction books and textbooks in a month.

Explanation:

Answer to String Ratio Problem

Let's represent the length of the longest piece of string as 5x, the medium piece as 4x, and the shortest piece as 2x, based on the given ratio 5:4:2. According to the problem, the longest piece is 87 cm longer than the shortest piece. Thus, we have:

5x - 2x = 87 cm

3x = 87 cm

x = 29 cm

Now, to find the total length of the string before cutting, we add up all the pieces:

Total length = 5x + 4x + 2x = 11x = 11(29 cm) = 319 cm

So, the string was 319 cm long before it was cut.

Answer to Bookstore Ratio Problem

In the bookstore problem, we're given the ratio of fiction books, textbooks, and workbooks sold as 6:5:9, respectively, and that 1350 workbooks were sold. If we denote the common ratio multiplier as y, we can represent the amounts of each as follows:

Fiction books = 6y, Textbooks = 5y, Workbooks = 9y = 1350

To find y, we solve 9y = 1350:

y = 150

Now, we can calculate the total number of fiction books and textbooks sold:

Fiction books = 6y = 6(150) = 900

Textbooks = 5y = 5(150) = 750

Total fiction books and textbooks = 900 + 750 = 1650

The bookstore sold a total of 1650 fiction books and textbooks.

The Students at Sunnyside School built a rectangular pyramid of aluminum cans for a world record. The top layer had 2 rows with 3 cans in each row. The second layer had 4 rows of 6 cans. The third layer had 8 rows of 12 cans. How many cans were in the eighth layer of the pyramid?

Answers

Final answer:

The eighth layer of the pyramid will have 280,896 cans.

Explanation:

To find the number of cans in the eighth layer of the pyramid, we need to observe the pattern in the number of rows and cans in each layer. The pattern is that each layer doubles the number of rows and the number of cans in each row. The eighth layer will have 2^7 (128) rows and 3^7 (2187) cans in each row. Therefore, there will be a total of 128 * 2187 = 280,896 cans in the eighth layer of the pyramid.

Learn more about number of cans in the eighth layer of the pyramid here:

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Fashion Phreddy buys 5 shirts and 3 ties for 91 on the bargain bus. Billy joe bob buys 8 shirts and 5 ties for 146. If all the shirts sold for the same price and each ties were priced identically. How much was each shirt and tie.

Answers

Assume that the price of the T-shirt is x and the price of the tie is y.

Fashion Phreddy buys 5 shirts and 3 ties for 91. This means that:
5x + 3y = 91 .........> equation I
5x = 91-3y
x = 18.2 - (3/5) y ..........> equation II
Billy joe bob buys 8 shirts and 5 ties for 146. This means that:
8x + 5y = 146 ...........> equation III

Substitute with equation II in equation III:
8(18.2 - (3/5) y) + 5y = 146
145.6 - 4.8y + 5y = 146
0.2y = 0.4
y = 2
Substitute in equation II to get the value of x:
x = 18.2 - (3/5) (2) = 17

Based on the above calculations:
price of T-shirt = x = 17
price of tie = y = 2

Add. 4/5 + 3-1/10 Enter the sum in the box as a mixed number in simplest form.

Answers

Simplify the expression.
Exact Form:
37/10

Decimal Form:
3.7

Mixed Number Form:
3 7/13

Answer:

Step-by-step explanation:

Two-order systems may be solved by subtraction. True False

Answers

This is True

answered false got it wrong

Answer:

true

Step-by-step explanation:

How many solutions does the system have?

x−3y=7

−2x+6y=6

Answers

multiply first equation by 2
2x - 6y = 14
-2x + 6y = 6
-------------------add
0x + 0y = 20
0 ≠ 20

answer
zero solution

A store increases the price of a sweater from $20 to $22.

What is the percent of increase?

Answers

%2. hope that helped

Answer:

The percent increase is [tex]$10\%$.[/tex]

Explanation:

To find the percent increase, we use the formula:

[tex]\[\text{Percent Increase} = \left( \frac{22 - 20}{20} \right) \times 100\%\][/tex]

Given:

- Original price = $20

- New price = $22

Substitute these values into the formula:

[tex]\[\text{Percent Increase} = \left( \frac{22 - 20}{20} \right) \times 100\%\][/tex]

[tex]\[\text{Percent Increase} = \left( \frac{2}{20} \right) \times 100\%\][/tex]

[tex]\[\text{Percent Increase} = \left( 0.1 \right) \times 100\%\][/tex]

[tex]\[\text{Percent Increase} = 10\%\][/tex]

So, the percent increase is [tex]$10\%$.[/tex]

Roy ia training for a race. He swims 1/4 lap in 3/5 minute. At that rate,how many minutes does it take roy to swin each lap?

Answers

The answer is 12/5 minutes, or 2 minutes and 24 seconds. This is because he must do 4 1/4 laps to achieve one lap, meaning you must multiply by 4, this is the same for 3/5, since you are converting into another unit.

Mrs. Fauskee went to the Farmers Market on Saturday and bought 5 oz of Strawberries, some spinach leaves and 2 3 oz jars of peach jam. The total weight of her purchases came to 20 oz. How many ounces (oz) of Spinach did Mrs. Fauskee buy? *
A 21
B 9
C 8
D 11

Answers

B. It would weigh 9 oz.

What is the distance between −131 and −87 on a number line?

Answers

THE distance betweem -131 and -87 is 44

(-131) - (-87)= 44

You dont add a negetive sign because you are finding the distance

What is an equation for the linear function whose graph contains the points (2, 5) and (3, 0) ?

Answers

y = -5x + 15

You can use point slope formula to get the answer

Answer: x + 5y - 15 = 0

Step-by-step explanation:

First, we find the slope

Given : x₁ = 2 y₁= 5 x₂= 3 y₂=0

m = y₂ - y₁ / x₂ - x₁

m = 0-5 / 3-2

m = -5 / 1 = -5

equation of a straight line;

y - y₁ = m (x - x₁)

y - 5 = -5(x - 2)

y - 5 = -5x + 10

y + 5x - 15 = 0

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