Which system of equations below can be used to solve the following problem?
The of a rectangular room is 80 square feet. If the length of one side of the room is 8 feet what is the perimeter of the room?

Answer:

Well, let us find the contanst value. $19.50 ÷ 6 = $3.25 per dog food bag. $3.25 x 3 = $9.75.

Amelia would have to pay $9.75 for 3 bags of dog food

Answer:

22 cars & 2 trucks

Step-by-step explanation:

Let c stand for cars

Let t stand trucks

12c + 18t = 300

If we know that c is 22, then let's find t:

12(22) + 18t = 300 (first do what is in parenthesis)

264 + 18t = 300 (then combine like terms)

18t = 36 (divide to get t alone)

t = 2

Ans: They washed 22 cars and 2 trucks

Answer:

terminating

Step-by-step explanation:

Answer:

I believe that it is terminating as -0.4375

Step-by-step explanation:

Answer: 36.196 prep

hope this helps :)

Answer:

Its 36.2

Step-by-step explanation:

Follow the rule ¨5 or more raise the score, 4 or less, let it rest¨. 6 and 9 are both larger then 5 making the .1 into a .2, thus being 36.2

Answer:

I think u need to show the images lol

Step-by-step explanation:

you kinda can't tell whats happening without it

Answer:

C. Y= I n x

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

used Pythagorean theorem

a ^2+b^2=c^2

6^2+8^2=c^2

36+64=c^2

c^2= 100

find square root of 100 to find c

=10

Answer:

677.30

Step-by-step explanation:

5, round up to 3

Rounding off 677.25 to the nearest tenths gives 677.20.

So, 677.25 to the nearest tenth:

Therefore, rounding off 677.25 to the nearest tenths gives 677.20.

Know more about rounding off here:

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Answer:

Option (D)

Step-by-step explanation:

If a point (h, k) divides the line segment having ends at [tex](x_1, y_1)[/tex] and [tex](x_2,y_2)[/tex] in the ratio of m : n then,

h = [tex]\frac{mx_2+nx_1}{m+n}[/tex]

k = [tex]\frac{my_2+ny_1}{m+n}[/tex]

If a point Q(h, k) divides the segment with ends A(-4, 6) and B(6, 1) in the ratio of 3 : 2 then,

h = [tex]\frac{3(6)+2(-4)}{3+2}[/tex]

  = [tex]\frac{18-8}{5}[/tex]

h = 2

k = [tex]\frac{3(1)+2(6)}{3+2}[/tex]

  = [tex]\frac{3+12}{5}[/tex]

k = 3

Therefore, Coordinates of the point Q are (2, 3).

Option (D) will be the answer.

Answer:

f(x)= 20-11+30x

= 9/30

Answer:

sorry i cant help but search it up on quizlet it will be the fith flash card

Step-by-step explanation:

Answer:

5 seconds

Step-by-step explanation:

All you have to do is make a ratio.

10 yards = 5/3 seconds

10 * 3 = 30 yards

5/3 * 3 = 15/3 = 5 seconds

Answer:

That would be "C"

Step-by-step explanation:

Good luck with your work :)

Answer: C: 0.888

Step-by-step explanation: Hope this helps :)

Answer: He has 287 home runs

Step-by-step explanation:

Let's define:

H = home runs of Hank

J = home runs of Jones.

We know that:

H = 2*J - 181

H = 755

Then we can replace the second equation into the first one:

755 = 2*J - 181

(755 - 181)/2 = J

287 = J

Answer:

100

Step-by-step explanation:

5% of  25 in 4 years you would make 100$

Answer:

yes why not

Step-by-step explanation:

I HOPE it will help you

The value of x in the given proportion is determined as 10.

The value of x in the proportion is calculated by applying the following formula as follows;

The given expression is as follows;

20/x = 4/2

From the given expression above, to determine the value of x, we can cross and multiply.

4x = 20 x 2

4x = 40

divide both sides by 4;

4x / 4 = 40/4

x = 10

Thus, the value of x in the given proportion is determined as 10.

Learn more about proportion here: https://brainly.com/question/19994681

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Answer: 40%  

Step-by-step explanation:

To write 8/20 as a percent have to remember that 1 equal 100% and that what you need to do is just to multiply the number by 100 and add at the end symbol % . 8/20 * 100 = 0.4 * 100 = 40% And finally we have: 8/20 as a percent equals 40%

Answers:

x = 57

y = 86

z = 37

=================================================

Work Shown:

x+123 = 180 .... since x and 123 form a straight line

x = 180-123

x = 57

y = 86 since the y and 86 angles are vertical angles

-------

For any triangle, the three angles always add to 180. So,

x+y+z = 180

57+86+z = 180

143+z = 180

z = 180-143

z = 37

As a check,

x+y+z = 57+86+37 = 180

which confirms the value of z

12.5%

All you have to do to get the percentage is divide 3 by 24, which gives you .125

Then you multiply by 100 or, move decimal place two places to the right, which gives you 12.5 so 12.5%

Hope this helps

Answer: 12.5%

Step-by-step explanation:

3 / 24 = 0.125

Move the decimal point to the right 2 times and you get 12.5%

Answer:

31.6

Step-by-step explanation:

l^2+w^2=d

30^2+10^2=1,000

square root of 1000 is 31.6

Answer:

3

Step-by-step explanation:

He got 42 correct

Answer:

3

Step-by-step explanation:

.84 x 50=

42

Answer:

594

Step-by-step explanation:

divide the total amount of pages to find the amount that can be printed per minute. this will give you 27 pages per minute, multiply this by the 22 minutes in the question to get a grand total of 594 pages in 22 minutes.

Answer: Difference between the volumes of 5cm x 5cm x 5cm cube and 2cm x 4cm x 16 cm cuboid = 3 cm^3.

Step-by-step explanation: Volume of cube of side "a" =a^3

In the question, a=5cm

Therefore, the Volume of cube = 125 cm ^3

Volume of cuboid = l x b x h

In the question, l = 2cm, b = 4cm, h = 16cm

Therefore, Volume of cuboid= 128 cm^3

Hence, the difference in their volumes = 3 cm^3

To learn more about volumes of cube and cuboid:

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Answer:

There are 17 terms in the sequence

Step-by-step explanation:

Arithmetic Sequence

An arithmetic sequence is a list of numbers with a definite pattern by which each term is calculated by adding or subtracting a constant number called common difference to the previous term. If n is the number of the term, then:

[tex]a_n=a_1+(n-1)r[/tex]

Where an is the nth term, a1 is the first term, and r is the common difference.

In the problem at hand, we are given the first term a1=13, the last term an=-23, and the common difference r=-2 1/4. Let's solve the equation for n:

[tex]\displaystyle n=1+\frac{a_n-a_1}{r}[/tex]

We need to express r as an improper or proper fraction:

[tex]\displaystyle r=-2\frac{1}{4}=-2-\frac{1}{4}=-\frac{9}{4}[/tex]

Substituting:

[tex]\displaystyle n=1+\frac{-23-13}{-\frac{9}{4}}[/tex]

[tex]\displaystyle n=1+\frac{-36}{-\frac{9}{4}}[/tex]

[tex]\displaystyle n=1+36*\frac{4}{9}=17[/tex]

n=17

There are 17 terms in the sequence

Answer:

see below

Step-by-step explanation:

We can use point slope form

y - y1 = m(x-x1)

where m is the slope and ( x1,y1) is a point on the line

y-12 = 3(x-12)

If we want it in slope intercept form

Distribute

y-12 = 3x-36

Add 12 to each side

y-12+12 = 3x-36+12

y = 3x-24

Answer:

you only show one graph in your picture