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3 years ago

Boris filled his gas tank three times last week. Here are the amounts of gas he bought (in gallons).

Mathematics

1 answer:

slega [8]3 years ago

5 0

Answer:

30.04

Step-by-step explanation:

You could do this the simple way which is to first grab two numbers in any order and add them together, and after you do that you can add the result to the remaining number or numbers that remain. 9.94 plus 1 is 10.94, and 10.94 plus 19 is 29.94, lastly the .1 from the 19 which finally leads us to the answer of 30.04 gallons that Boris bought last week

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HELP!!

Annette [7]

64 = 22 + .25m

Subtract 2w from both sides.

42 = .25m

Divide both sides by .25

168 = m. This means after renting the car, it was driven for 168 miles.

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3 years ago

A paper company needs to ship paper to a large printing business. The paper will be shipped in small boxes and large boxes. The

lina2011 [118]

Answer:

x is the number of large boxes shipped

y is the number of small boxes shipped

7 large boxes were shipped

14 small boxes were shipped

Step-by-step explanation:

The volume of each small box is 6 cubic feet and the volume of each large box is 12 cubic feet.

There were twice as many small boxes shipped as large boxes shipped : so if x large boxes , and y small boxes were shipped, then ,y = 2x small boxes were also shipped.

the total volume of all boxes was 168 cubic feet, which means:

y = 2x ...................(1)

6y + 12x = 168 .......(2),

then, replace y to 2x in the second equation

6(2x) + 12(x) = 168,

12x + 12x = 168,

24x = 168,

x = $\frac{168}{24}$ = 7,

since the small boxes = 2x,

2(7) = 14 boxes, so there are 14 small boxes being shipped,

and x = 7, so there are 7 large boxes being shipped, since x is the number of large boxes being shipped.

5 0

3 years ago

An airplane reaches a maximum height of 34,320 feet. there are 5,280 feet in 1 mile. what is the maximum height, in miles, this

Naddik [55]

34,320 divided by 5,280 = 6.5

4 0

3 years ago

You are shopping for carpet for your living room which measures 19 feet by 12 feet. Charlie's Carpets sells carpet for $18 per s

fenix001 [56]

<span>You first need to find the area of the living room.
Both of the two stores are dealing with square yard. The first thing you need to do is convert your feet to yards.
There are 3 feet in 1 yard. So divide the number of feet by 3 to get the yards.

12/3 = 4 yards
19/3 = 6.333 yards.

You then multiple those numbers to get your square yardage of the room (i.e. your area)

4*6.333 = 25.33333 sq. yards.

Now, look at what the first store is offering. You need to calculate the price. Originally, the carpet will cost $18 the number of square yardage for the carpet ONLY. So, multiple
$18 by your area of 25.33

18*25.333 = $456

Now, there is a sale of 20% off the carpet only price. You know the price so you need to take 20% of that and then subtract that number from the original total. Think of it like this. If you went and something was 50% off, and it was originally $10. 1/2 of 10 is 5. 10-5 is 5. That's the price you would pay. Use the same process with this problem.

$456*.20 = 91.20
(remember a % is the same as moving the decimal over 2 places.)
Take 91.20 off of 456

456-91.20 = 364.80

Then, find the installation price. They say that they will charge $2 per square yard. Your square yardage is 25.333. Now multiple those two numbers.

2*25.333=50.66

Add that price to the 364.80 to get the TOTAL for the first store.

364.80+50.66=415.47 (rounded off from 415.466)

Cindy's carpet:

they have $18 per square yard. Again, multiple 18 by your square yardage.

18*25.333 = 455.99

If it is 10% off, you go through the same process as before.

455.99*.10=45.59

Subtract that from the whole

455.99-45.59 = 410.40 </span>

7 0

3 years ago

HELP!!! A LOT OF POINTS!!!

Tpy6a [65]

Answer: Last option.

Step-by-step explanation:

For this exercise you need to find the Discriminant.

The formula used to find the Discriminant, is the following:

$D=b^2-4ac$