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2 years ago

Help me plzzzz I need to turn this in plz help me

Mathematics

2 answers:

cupoosta [38]2 years ago

5 0

Answer:

75 miles

Step-by-step explanation:

zvonat [6]2 years ago

4 0

Answer:

75 miles

Step-by-step explanation:

20 miles = 1 gallon of gas

3 3/4 = 15/4

12/4 = 3 = 3 x 20 = 60 miles

3/4 of 20 = 15 miles

60 + 15 = 75 miles

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Solve the inequality 2y=4x-6

kap26 [50]

Answer:

y=2x+3.

Step-by-step explanation:

2y-4x=6. 2y−4x=6. Add 4x to both sides. Add 4x to both sides.

2y=6+4x. 2y=6+4x. The equation is in standard form. The equation is in standard form.

2y=4x+6. 2y=4x+6. Divide both sides by 2. Divide both sides by 2.

y=2x+3. y=2x+3.

6 0

1 year ago

Calculate the circumference of the inscribed circle. [Use π = 3]

kiruha [24]

Answer:

To answer the question, we need a radius or diameter. For know, I hope this equation helps.

Step-by-step explanation:

C=2πr

Circumference = 2 (pi) radius

For your problem, it says to use 3 for pi.

C=2(3)r

*If you have the diameter, but not the radius, divide that number by 2. Your radius is half the diameter.

6 0

3 years ago

Read 2 more answers

if my medical expenses are $30,000 per year for 35 years with inflation at 5.13% how much money would I have to put in an intere

Serga [27]

Answer:

$1,021,337.13

Step-by-step explanation:

The sum of present values of medical expenses is ...

30,000/1.05 +30,000(1.0513)/1.05^2 +30,000(1.0513^2)/1.05^3 +...

So, the series has an initial value of 30,000/1.05 and a common ratio of 1.0513/1.05. Its sum is given by ...

S = a(r^n -1)/(r -1)

where a = 30,000/1.05, n = 35, r = 1.0513/1.05.

Filling in these values and doing the arithmetic, we get ...

S = $1,021,337.13

You need an initial deposit of $1,021,337.13 to cover rising expenses for 35 years.

4 0

3 years ago

In a certain library the first shelf is 15.0 cm off the ground, and the remaining four shelves are each spaced 38.0 cm above the

baherus [9]

Answer:

1747.9 J

Step-by-step explanation:

The work done to lift a book by a certain height $\Delta h$ is

$W=mg\Delta h$

where

m = 1.40 kg is the mass of one book

$g=9.8 m/s^2$ is the acceleration due to gravity

The first shelf is 15.0 cm (0.15 m) from the ground, and it can be filled with 28 books. So, the work done to fill the first shelf is

$W_1=28mg\Delta h=28(1.40)(9.8)(0.15)=57.6 J$

The 2nd shelf is 38.0 cm above the first one, so its height from the ground is

$\Delta h =15.0+38.0 =53.0 cm=0.53 m$

It can also contain 28 books, so the work done to fill this shelf is

$W_2=28 mg\Delta h=28(1.40)(9.8)(0.53)=203.6 J$

The height of the third shelf is

$\Delta h =15.0+38.0 +38.0=91.0 cm=0.91 m$

It can also contain 28 books, so the work done to fill this shelf is

$W_3=28 mg\Delta h=28(1.40)(9.8)(0.91)=349.6 J$

The height of the 4th shelf is

$\Delta h =15.0+38.0 +38.0+38.0=129.0 cm=1.29 m$

It can also contain 28 books, so the work done to fill this shelf is

$W_4=28 mg\Delta h=28(1.40)(9.8)(1.29)=495.6 J$

The height of the 5th shelf is

$\Delta h =15.0+38.0 +38.0+38.0+38.0=167.0 cm=1.67 m$

It can also contain 28 books, so the work done to fill this shelf is

$W_5=28 mg\Delta h=28(1.40)(9.8)(1.67)=641.5 J$

Therefore, the total work done is:

$W=W_1+W_2+W_3+W_4+W_5=57.6+203.6+349.6+495.6+641.5=1747.9 J$

6 0

3 years ago

Which shows all the like terms in the expression? 4x -3+7x + 1

vaieri [72.5K]

Answer:

4x and 7x; -3 and 1: these are like terms

Step-by-step explanation:

when finding like terms, look for same variables.

6 0

3 years ago

Read 2 more answers