Mathematics High School

help me solve -2/7x -5=-13 and please add how to do it

Answers

Answer 1

Answer:

Step-by-step explanation:

-2/7x -5 =13

-2/7x = 13 + 5 = 18

x = 18 (-2/7)

x = -5.14

Answer 2

Answer:

Step-by-step explanation:

Help Me Solve -2/7x -5=-13 And Please Add How To Do It

Related Questions

Jane is thirteen years younger than twice Ruby’s age. Nora is 5 years older than Ruby. If their ages sum to 52, find each girl’s age.

Answers

Answer:

J=17 N=20 R=15

Step-by-step explanation:

J=Jane

R=Ruby

N=Nora

J=2R-13

N=5+R

J+N+R=52

(2R-13)+(5+R)+R=52

Slove for R and plug into each equation

Answer:

Ruby is 15, Jane is 17 and Nora is 20.

Step-by-step explanation:

Let x represent the age of Ruby.

Jane: 2x - 13

Ruby: x

Nora: x + 5

52 = (x) + (2x - 13) + (x + 5)

52 = x + 2x - 13 + x + 5

52 + 13 - 5 = x + 2x + x

60 = 4x

x = 15

Jane:

2(15) -13

= 17

Nora:

(15) + 5

= 20

mowing lawns earns $10.00 for 1 hour and $42.00 for 5 hours. what is the slope

Answers

Answer:

The slope is $8 per hour

Step-by-step explanation:

Here, we want to get the slope of the relation

Mathematically, that will be;

m = y2-y1/x2-x1

Where ; (no of hours, money) represents each point

Thus, we have it that

m = (42-10)/(5-1) = 32/4 = $8/ hour

Write a unit rate for the ratio.
45 miles on 3 gallons of gasoline
a 20 miles per gallon
b 15 miles per gallon
C 35 miles per gallon
d
45 miles per gallon

Answers

Answer: B 15 miles per gallon

Explanation: To find a unit we must get the bottom number to 1 so we would divide 3/3 and repeat the process to 45 so it would be 45/3 which equals to 15 we can check our work by multiplying 15*3 which is equal to 45 have a nice day (:

A figure is dilated by a factor of 6 the area will change by a factor of what

Answers

Answer:

i think it is 69 thank you

Answer:

factor of 36

Step-by-step explanation:

Given the factor 6, then the area factor is

6² = 36

What is the value of x in the solution to this system of equations?

4x−7y=105

y=−3x+10

Enter your answer in the box.

Answers

Answer:

Y=7y=105

Step-by-step explanation:

Answer:

x = 7

y= -11

Step-by-step explanation:

A: Find the mean and standard deviation of the sums you should get when you roll two standard number cubes.

B: Suppose you can replace one number cube with a nonstandard number cube, where any of the numbers 1 through 6 can appear on multiple faces. How can you arrange the numbers on the nonstandard cube so that the mean of the rolls is the same as that of two standard number cubes, but the standard deviation is as large as possible? What is this value?

Answers

Answer:

Step-by-step explanation:

b) If (a - b) = 4 and ab = 2, find the value of a² + b².

Answers

Answer:

Step-by-step explanation:

note that

(a - b)² = a² + b² - 2ab , thus

a² + b² - 2ab = (a - b)² ( add 2ab to both sides )

a² + b² = (a - b)² + 2ab = 4² + 2(2) = 16 + 4 = 20

Look at the lines in the grid below.
Which line represents a proportional relationship?

Answers

Answer:

Line C

Step-by-step explanation:

I got it correct on my test on performance matters!!

ITS IN THE PICTURE! PLEASE ANSWER CORRECTLY! I will mark brainliest if you are right :D

Answers

Answer:

A, B

Step-by-step explanation:

1. A

because the intersection of the line is the solution so no solution means they do not intersect

2. B

because the points on the line that is on top of another line are all solutions and lines have infinite number of points

Someone please help me with this! Pick the correct choice

Answers

the answer is A. i’m pretty sure

Jorie leaves work 30 minutes late. She decides to make up time by taking the toll road instead of side streets. She can travel four times faster by taking the toll road. Create an equation to represent her total travel time, including wait time, where x is the number of minutes the drive was expected to take.

y equals one fourth times x minus thirty
y = 4x − 30
y equals one fourth times x plus thirty
y = 4x + 30

Answers

Answer:

option C

Step-by-step explanation:

We know that the toll road is 4 times faster than the side streets.If 'x' represents the number of minutes she usually spend taking the side streets. The represents the time she takes taking the toll road.Also we need to create an equation to represent her total travel time, including wait time

Find the values of the six trigonometric functions of an angle in standard position if the point with coordinates (6,-5) lies on
its terminal side.

The answer is C!!

Answers

C i guesss because you just said it

A grapefruit weighed 0.65 pound. Which fraction is equivalent to the weight of the
grapefruit in pounds?

Answers

Answer:

65/100 pounds

Step-by-step explanation:

P.S Can I have brainliest?

Answer:

13/20

Step-by-step explanation:

Write 0.65 as [tex]\frac{0.65}{1}[/tex]

Multiply both numerator and denominator by 10 for every number after the decimal point

0.65 × 100/1 × 100 = [tex]\frac{65}{100}[/tex]

[tex]\frac{65}{100}[/tex] reduced is 13/20

Help!!!What is the value of x?

Answers

Answer:

your answer is 3 the value of x is 3

Find the value of (7x+17) (8x+2)

Answers

Answer:

Step-by-step explanation:

7x+17+8x+2)

7x+17+8x+2

7x+8x+17+2

15x+19.

Round 0.93405 to
the thousandths place.

Answers

The thousands place would be 0.934

A recipe for a blueberry dessert requires 5 cups of fresh blueberries for every 312cups of whipped cream. At this rate, how much whipped cream is needed if 2 cups of blueberries are used?pls i need halp

Answers

Answer:

A 5:3

Step-by-step explanation:

Answer: 124.8cups of whipped cream

Step-by-step explanation:

for every 5 cups of blueberries there are 312 cups of whipped cream so you will multiply 312 and 2

(312×2= 624)

Then divide it by 5

(624÷5= 124.8)

The bag contained only red marbles and white marbles. If the ratio of red marbles to white marbles was 5 to 4, what fraction of the marbles were white? *Complete the statement by providing the correct response in number form, using / as the fraction symbol.

The fraction of white marbles is

Answers

Answer:1 1/4

Step-by-step explanation: If it is 5/4 it makes one whole leaving an extra

the area A, of a rectangle is 120x (exponent of 2)+78x-90 , and a length, l, of the rectangle is 12x=15. which of the following given width, W, of the rectangle?
A. 9x+4
B. 10x - 19
C. 10x-6
D. 8x -6

Answers

I think answer should be c. Please give me brainlest I hope this helps let me know if it’s correct or not okay thanks bye

Whats The Answer Marking Brainliest, Please explain your answer:D..........

Answers

Answer: A

2^2 = 4
6-4= 2
and 4*2 equals 8.

The answer should be A

Here is an isosceles triangle.

Choose the true statements.
A. The triangle has two equal angles.
B. The triangle has an obtuse angle.
C. Two of the sides are the same length.

Answers

The answers are A and C the base angles (the bottom 2 angles) are the same measure and the sides leading to the point are the same length

Which number line shows the solution of 2x- 8>-4?

Answers

B! If you simplify the inequality you get X > 2

Answer:

The answer is B I just checked a math sumulater

Step-by-step explanation:

twice the difference of a number and 3 is 5.

Answers

Answer:

2(3-n)=5

Step-by-step explanation:

Which expression represents the correct form of the partial fraction decomposition of StartFraction 19 x + 20 Over x squared minus 64 EndFraction? StartFraction A x + B Over x squared minus 64 EndFraction StartFraction A Over x minus 8 EndFraction + StartFraction B Over x + 8 EndFraction StartFraction A x + B Over x squared minus 64 EndFraction + StartFraction C over x minus 8 EndFraction StartFraction A Over x minus 8 EndFraction + StartFraction B x + C Over (x minus 8) squared EndFraction

Answers

Answer:

Step-by-step explanation:

I got it right, Edg2020

Answer:

It's B!

Right On Edge

Step-by-step explanation:

Six times a number decreased by 5 is 273. Find the number and show your work pls

Answers

Answer: The number is 46.3 repeating

Step-by-step explanation:

273 = 6x + 5

+ 5 = 6x

278 = 6x

----- = ---- = 46.3 repeating

6 = 6

Hope this helps :)

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. The Smiths are sending out a batch of holiday cards. Emily signed of the cards. Then Josh signed of the remaining cards. Tatiana signed 20% of what Josh had left. If there were 75 cards in all, how many cards are left to be signed? There are cards yet to be signed.

Answers

Answer:

You will get 75 cards

Step-by-step explanation:

The answer is 32

Emily signed 2/5 so 75 divided by 5 is 15

15x2 is 30

75-30=45

45 divided by 1/9 is 5

30+5=35

so then 45-5=40

20% of 40 is 8

30+5+8 = 43

75-43=32

HELP BEING TIMEDD

Enter the formula to find the surface area of a prism involving area of the Base and Perimeter of the base

Answers

Answer:

p=3+4+5=12

Step-by-step explanation:

Answer:

96 inches2 or 352 cm2

Step-by-step explanation:

-Okay so, we know that The lateral surface area of a prism is the sum of the areas of its lateral faces. And The total surface area of a prism is the sum of the areas of its lateral faces and its two bases. Then Usually, if "right" or "oblique" is not mentioned, you can assume the prism is a right prism. The general formula for the lateral surface area of a right prism is L.S.A.=ph where p represents the perimeter of the base and h represents the height of the prism.

Find f(x)=-8x+5 and g(x)=6x+8.
f(4)+g(2)

Answers

-7
you just plug in the number to the x
-8(4) + 5 + 6(2) +8
and then just calculate like normal

Twice a number added to another number is 15. The sum of the two numbers is 11. Find the numbers. Write the numbers from least to greatest

Answers

Answer:

4 and 7

Step-by-step explanation:

There are probably several ways to do this but this is how I did it:

First, I listed all the number combinations, that added together equaled 11.

This is what it looked like:

1, 10

2, 9

3, 8

4, 7

5, 6

6, 5

7, 4

I stopped here since the next step would be to double the first number and 8*2 would already be more than 15.

Then, I doubled the first number and added the second number to it, when I saw that didn't equal 15, I eliminated that possibility and moved on to the next set of numbers. When I reached 4, 7 I saw that 4*2 equaled 8 and 8 plus 7 equals 15 so I had the answer.

There are probably much more efficient ways to do this but this is how I did it.

Hope it helped!

The first number is 4 and second number is 7.

Let us consider that first number is x and second number is y.

[tex]2x+y=15\\\\x+y=11[/tex]

Substitute [tex]y=11 - x[/tex]in equation [tex]2x+y=15[/tex]

[tex]2x+11-x=15\\\\x=15-11=4[/tex]

So, [tex]y=11-x=11-4=7[/tex]

Learn more:

https://brainly.com/question/2159099

Write 7.36 as a mixed number in simplest form.

Answers

Answer:

184/25

Here are some extra characters.

7.36-7=0.36
0.36=9/25

= 7 9/25

Other Questions

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help me solve -2/7x -5=-13 and please add how to do it​

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help me solve -2/7x -5=-13 and please add how to do it