Mathematics High School

x-7=13
one step equation​

X-7=13one Step Equation

Answers

Answer 1

Answer:

x=20

Step-by-step explanation:

Answer 2

Answer:

x=20

Step-by-step explanation:

Add 7 to both sides, x = 13+7 = 20

Related Questions

Joquan's brother earns a commission. He makes 2.5% of the amount he sells. Last week, he sold 9900 worth of shoes. How much was his commission

Answers

Answer:

His commission was $247.50

Step-by-step explanation:

Percentage

Joquan's brother earns a  2.5% commission on the amount he sells.

Last week, he sold $9,900 worth of shoes, thus his commission will be calculated as follows:

2.5% of $9,900 = 2.5 *$9,900 / 100 = $247.50

His commission was $247.50

Complete the input-output table that represents the linear function y=-4x+10

Answers

Answer: 6

Step-by-step explanation: the table is going down by 4 so the next number is 6

The volume of a cylinder with radius r and height his v = 7h
A barrel in the shape of a circular cylinder is 30 inches in diameter and 42 inches tall.
Approximately what is the volume of the barrel in gallons?
(Use 1 gal - 231 in)

Answers

Answer: 128.5 gallons

Step-by-step explanation:

V= πr²h

V=π15²42

V= 29688.05058in³ ÷ 231 ≈ 128.5 gallons

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Describe how to use a number line to find the sum of 5 + 13. Then use this method to find the sum.

Answers

Answer:

Start at 13, then count 5 more to the right. You will end at 18, which is your answer.

Step-by-step explanation:

Answer:

the anser is 18

Step-by-step explanation:

you would start at the mark that indicates 13 and go up or to the right 5 more marks or to whichever mark indicates 18

I need someone to do this Best answer gets brainleist

Answers

Answer:x^(25)y^(15)

Step-by-step explanation:use mat h wa y . c o m

it helps

Marcie Bruno received a 4.2% merit increase and a 2.75% cost-of-living increase
after her quarterly review. Her new weekly salary was $788.92. What was her
weekly salary prior to the increases?

Answers

Answer:

734.1

Step-by-step explanation:

100%=788.92

4.2%=33.13

2.75%=21.69

33.13+21.69=54.82

788.92-54.84=734.1

Write the equation of the ellipse with the endpoints of the major axis (-11, 0) and (11, 0) and minor axis (0, -3) and (0, 3)

I don't particularly care about the answer, more judt the explanation of how I'm supposed to find it. thank you!!​

Answers

Answer:

x/121 + y/9 = 1

Step-by-step explanation:

The major axis is 22 units long, in a horizontal line, and the center is in the middle of the major axis line segment. The center is at the origin. The distance of the whole axis is 22, and its endpoints are 11 units from the center. The axis length is 2a = 22, so a = 11.

Becasue the major axis is horizontal, this ellipse is wider than it is tall.

The minor axis is perpendicular to the major axis and it always shoter (hence the name 'minor'). In this case, it is vertical, is 6 units long, so we say that 6 = 2b, and b = 3.

The ellipse center is (h,k). But in this case, the center is the origin, so h = 0 and k = 0.

The equation for a horizontal ellipse is (x-h)²/a² + (y-k)²/b² = 1, a>b

(x-0)²/11² + (y-0)²/3² = 1

*** x/121 + y/9 = 1

The equation for a vertical ellipse is (x-h)²/b² + (y-k)²/a² = 1, a>b

If the bigger denominator is under 'x' term the ellipse is horizontal, with the longer axis being horizontal.

If the bigger denominator is under the 'y' term, the ellipse is vertical, with the longer axis being vertical.

I'm including 2 files.

The 'brainly ellipse' is form this particular problem.

The 'General Ellipse Info' is a collection of my personal math notes on elleipses.

Hope this helps.

*** Let me try the 2nd attachment again as a PDF. You may not have MS Office 10.

8 less a number is less than or equal to 17

Answers

Answer:

less than

Step-by-step explanation:

8 is less than 17

Answer :n ≤ 25

Step-by-step explanation:

n - 8 ≤ 17

n - 8 (+8) ≤ 17 (+8)

n ≤ 25

n ≤ 25 is your answer

help me

45/14=x/14 what is “x”

Answers

Answer:

45

Step-by-step explanation:

x=45, just get rid of the denominators when they're the same

An online game store charges a $20 membership fee and $2.50 for each downloaded game. Write an
equation to model this situation Ifa new member paid the store $67.50 in the last three months, how
many gentes were downloaded?

Answers

Answer:

3?

Step-by-step explanation:

First I added 20 dollars to 2.50 and I got 22.50 than  I divided 67.50 / 22.50 which gave me 3, so I guess the answer is 3. Hope this helped!

What is the arithmetic of the following numbers? 3, 5, 6, 7, 9, 6, 8

Answers

Answer: sorry pressed the wrong button

Step-by-step explanation:

✅Mean:

➡️Sum of total numbers/Total numbers

3+5+6+7+9+6+8 / 7

44 / 7 = 6.285

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One number is 7 times another number. The product of the two numbers is 252. Find the two numbers.

Answers

Step-by-step explanation:

x =7y ----(1)

xy=252 ----(2)

(1) into (2):

(7y)(y) = 252

[tex]7 {y}^{2} = 252 \\ 7y = \sqrt{252} [/tex]

7y=15.874....

y=2.27

y value into (1)

x= 7(2.268)

x=15.87

the two numbers are 15.87 and 2.27 (Ans)

Find the percent of increase from 12.5 inches to 18.5 inches. Round the percent to the nearest tenth if necessary.

Answers

Answer:

148%

Step-by-step explanation:

12.5x = 18.5

Simplify 3x^2y^3•x^4y

Answers

Answer:

Step-by-step explanation:

3x²y³·x⁴y = 3x²x⁴y³y = 3x²⁺⁴y³⁺¹ = 3x⁶y⁴

please help and show work​

Answers

9514 1404 393

Answer:

  h = 12 m

Step-by-step explanation:

Sides of the triangle are proportional.

  (3.6 m)/(1.2 m) = h/(1.2 m + 2.8 m)

  (4 m)(3.6/1.2) = h . . . . . multiply by 4 m

  h = 12 m

6
Divide 2m in the ratio 9-1

Answers

Answer:

Step-by-step explanation:

First, add up the two numbers in the ratio to get 8. Next divide the total amount by 8, i.e. divide £40 by 8 to get £5. £5 is the amount of each 'unit' in the ratio.

To calculate the ratio of an amount we divide the amount by the total number of parts in the ratio and then multiply this answer by the original ratio. We want to work out $20 shared in the ratio of 1:3.

What is the name of the angle pair for <1 and <2?HELP

Answers

Answer:

It's A(complementary)

Find the volume of each prism. Show your work for full credit!

Answers

Answer:

1080

Step-by-step explanation:

1/2*base area*h

At a competition 24 of the 40 members of a middle school band won a middle. What percentage of the of the band won a middle?

Answers

Answer:

60%

Step-by-step explanation: 24/40 equals .6. Multiply .6 by 100 to get your percentage, which equals 60%. hope this helps

Meg and Rosa played a game. The game lasted 35 minutes and ended at 10:20 a.m.


What time did the girls begin playing the game?

Answers

Answer:

9:45 am

Step-by-step explanation:

Hope this helps!

Answer:

10:15

Step-by-step explanation:

What steps must you take to divide fractions?

Answers

Answer:

Find a reciprocal.

Step-by-step explanation:

ex: If you have 5/6 divided by 3/7 you would flip the 3/7 so it's 7/3 so then you can simply multiply them. REMEMBER YOU CANNOT DIVIDE FRACTIONS. YOU MUST CHANGE THE PROBLEM INTO MULTIPLICATION FIRST!!!

How do you do this?

Answers

Answer:

Legs: [tex]x[/tex]

Hypotenuse: [tex]\sqrt{2}\cdot x[/tex]

Step-by-step explanation:

In this case, a 45-45-90 right triangle is a right triangle whose legs have the same length and hypotenuse is [tex]\sqrt{2}[/tex] times the length of any of the legs. Then, the dimensions of this triangle are, respectively:

Legs: [tex]x[/tex]

Hypotenuse: [tex]\sqrt{2}\cdot x[/tex]

a new computer comapny has its sales increasing by 3% each week. A second computer company has its sales decreasing by $100 each day. the first company had $500 in sales when the second company had $7000 in sales. after approximately how many weeks will the sales for the two companies be the same?
A. 9
B. 13
C. 49
D. 63

Answers

Answer:

49

Step-by-step explanation:

whats is x − 2 /3 = 1 5 /6??

Answers

answer: 2 1/2
explanation: 1 5/6= 11/6 ; 11/6 + 2/3= 5/2 ; 5/2= 2 1/2

Convert [tex]\p\frac{5\pi }{18}[/tex] radians into degrees.

Answers

Answer:

50

Step-by-step explanation:

Formula: 1rad × 180/π = 57.296°

Devide. Reduce to lowest terms 3/8 1/7

Answers

2 5/8 or 21/8. Use the Keep Change Flip method. Change the sign to multiplication and flip the second fraction.
Multiply the numerators and the denominators separatley.
This cannot be simplified further, but it can be converted to a mixed number (as opposed to an improper fraction).

y varies Directy with
the square
of x. if
y=24 when x=2
Find y when
X= 5

Answers

Answer:

When X=5, Y=60

Step-by-step explanation:

24 | 2

36 | 3

48 | 4

60 | 5

(8b+12)+(3n+6)+(9b-4)

Answers

Answer:

17b+3n+14

Step-by-step explanation:

no any step

okk

finished

Answer:

Step-by-step explanation:

(8b+12)+(3n+6)+(9b-4)

Remove the parentheses:

8b+12+3n+6+9b-4

Group like terms:

8b+9b+3n+12+6-4

Add the similar element:8b+9b=17b

=17b+3n+12+6-4

add/subtract the numbers:12+6-4=14

=17b+3n+14

You borrow $1600 to buy a living room set. The simple interest rate is 9%. You pay off the loan after 3 years. How much do you pay for the loan?

Answers

You pay 1744

Explanation:

1600 • 0.09 = 144

1600 + 144 = 1744

Which expression is equivalent to 5x +10y-15?
A. 5(x-2y-3
B. 5(x5y-10
C. 5(x+2y-3
D. 5(x2y-15

Answers

Answer:

C

Step-by-step explanation:

Answer:

its   a hehehehehehhehehe\

Step-by-step explanation:

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