Solve 6x+8+7x-9=90 this is pretty hard tbh

Answers

Answer 1

Answer:

x=7

Step-by-step explanation:

6x+8+7x-9=90

13x+8-9=90

13x-1=90

add 1 to both sides

= 13x=91

divide both sides by 13

= x=7


Related Questions

PLEASE HELP, WILL MARK BRAINLIEST

25−(3x+5)=2(x+8)+x

Answers

Answer:

x = 2/3

Step-by-step explanation:

NO ANSWERS MY QUESTION I NEED HELP PLEAAASE

Answers

Answer:

configure 3 its B

Step-by-step explanation:

I THINK THE ANSWER IS FIGURE B.

oops didn't know i was in caps lock.

20 point question
simplify: −3x+2x-2y-5x+y+7y

Answers

Answer:

6y - 6x

I hope this helps!

Step-by-step explanation:

1. Find the like terms

-3x, 2x, -5x,

-2y, y, 7y

2. combine the like terms

-6x+6y

1. (b+5) 12
2. (b–5) 15

Answers

Answer(s)

1.=12b+60

2.=15b-75

Step-by-step explanation:

12xb=12b

12x5=60

1.=12b+60

15xb=15b

15x-5=-75

2.=15b-75

Find the measure of the unknown angle.

Answers

Answer:

131° Degrees

Step-by-step explanation:

It's the same just put in different places

Answer:

The answer is in the screenshot provided.

Step-by-step explanation:

I need help with this.

Answers

Answer:

4x - 2

Step-by-step explanation:

The perimeter of a shape is when you add up all the sides.

-So, you can write it as: 2x - 5 + 5 - x + 3x - 2.

-Group the terms together to get: 2x + 3x - x - 5 + 5 - 2

-Combine like terms to get: 4x - 2

Hope this helps! :)

PLS HELP ASAP PLSSS IT DETECTS IF ITS RIGHT OR WRONG HELPPP

Answers

Answer:

B

Step-by-step explanation:

Leo gathered data about the weight, in pounds of his suitcase when it was packed for trips lasting different numbers of nights. the data he gathered is organized in the table. (PLEASE ANSWER FOR REAL!!! NO BS LIKE RANDOM LETTERS OR IDK!)

Nights (x) 2, 3, 4, 5, 6
Weight (y) 17, 22, 26, 30, 35​

Answers

Answer:

y=4.4x+8.4

Step-by-step explanation:

find the value of this expression if x= -7

x^2+5/x+1

Answers

Answer:

-9

Step-by-step explanation:

Replace x with -7 in the expression:

x^2 + 5 / x + 1

-7^2 + 5 / -7 + 1

49 + 5 / -6

54/-6

simplify the fraction

9/-1 = -9

19. PLEASE HELPP !!Mel cleans houses.
She earns $7.50 every hour that she dusts.
She earns $10.00 every hour that she scrubs floors.
She scrubbed floors for 1 42 hours and dusted for 2 hours.
How much money did Mel earn?
PLEASE HELP !!

Answers

Answer:

1435.00

Step-by-step explanation:

dusted 2 hours. 15.00

Scrubbed floors 142 hours= 1420.00

Answer:

$30

Step-by-step explanation:

10$ x  1.5 (hours)  = 15$ (the reason i did 1.5 is because she scrubbed for 1 and a half hours)

$7.50 x 2 (hours) = $15

$ 15 + $15 = 30

she earned $30 dollars

CAN ANYONE SOVE THIS EASY INDIAN MATHS QUESTION...The angle of elevation of a cloud from a point 60m above a lake is 30" and the angle of
depression of the reflection of the cloud in the lake is 60° find the height of the cloud from
the surface of the lake.​

Answers

Answer:

the angle of elevation of a cloud from a point 60m above a lake is 30 and the angle of depression of the reflection of the cloud in the lake is 60 - Mathematics ... the reflection of the cloud in the lake is 60* find the height of the cloud from the surface of the lake

Step-by-step explanation:

Hope this helps

Answer:

80 m

Step-by-step explanation:

The described points form two right triangles which share same horizontal leg a.

The bottom triangle has 60 m vertical length and 60° opposite angle.

The triangle on the top has unknown (x) vertical length and 30° opposite angle.

We are looking for the distance x + 60 m

On the top triangle we have:

tan 30° = x/a ⇒ a = tan 30° / x

On the bottom triangle we have:

tan 60° = 60/a ⇒ a = tan 60° / 60

Comparing we get:

tan 30° / x = tan 60° / 60 x = 60 tan 30° / tan 60°x = 20 m

So the distance is:

60 m + 20 m = 80 m

HELP ME ITS TIMED
WHAT'S 11+(-3)-1/8j-3/8j+7 SIMPLIFIED

Answers

Answer:

15-1/2j

Step-by-step explanation:

I hope this helps

what is the reciprocal of 1 3/10

Answers

10/13 is the answer.

) Kelli and her family went to the beach for vacation. They drove 293 miles in 7 hours to get there. If they drove the same number of miles each hour, about how many miles did they drive each hour? Select the numbers the quotient is between. *

Answers

Answer:

about 42 miles rounding up

Step-by-step explanation:

293÷7 and round up

PLEASE HELP ME!!!!
What is the domain and range of the relation shown in the table?

Answers

Answer:

the answer is c

Step-by-step explanation:

good luck

Answer:

last option

Domain: -3,-1,2,5    Range: 0,2,4

It may be the one above it but you have to be careful because it might say that 0 is a real number or it is not. Fair warning!

Step-by-step explanation:

The domain is the x values and the range is the y values.

Hope this helps!

What is the y-intercept of y = - 1/3x + 2?

Answers

Answer:

Pretty sure it's 2

Step-by-step explanation:

Answer:

3×3=9

Step-by-step explanation:

hope this helps haha

I have 14 Baseballs in 23 tennis balls and some boxes of baseballs with 12 baseball and I have the equal amount of boxes of tennis balls and 16 ball write an expression to represent the total number of balls

Answers

Answer:

The answer is below

Step-by-step explanation:

I have 14 Baseballs in 23 tennis balls. I bought some boxes of baseballs with 12 baseball to a box and equal amount of boxes of tennis balls with 16 balls to a box. write an expression to represent the total number of balls

Solution:

Let n represent the number of boxes of each type.

Given, the number of boxes of tennis = number of boxes of baseball, hence:

n = number of boxes of tennis = number of boxes of baseball.

Already I have 14 baseball and I bought boxes of baseballs with 12 baseball to a box, therefore:

Number of baseballs = 14 + 12n

I have 23 tennis ball and I bought boxes of tennis balls with 16 baseball to a box, therefore:

Number of tennis balls = 23 + 16n

Total number of balls = number of baseballs + number of tennis balls

Total number of balls = (14 + 12n) + (23 + 16n) = 14 + 23 + 12n + 16n = 37 + 28n

Total number of balls = 37 + 28n

Simplify the expression.

4.8x - 4.6 + 3.9x

Answers

Answer:

8.7x - 4.6

Step-by-step explanation:

4.8x - 4.6 + 3.9x

Group like terms

4.8x + 3.9x - 4.6

Add similar elements: 4.8x + 3.9x = 8.7x

Then you get your answer:

8.7x - 4.6

The school's photographer took pictures of couples at this year's prom. She
charged $3.25 for wallet-size pictures and $10.50 for portrait-size pictures. Crystal
and Dan bought a total of 10 pictures for $61.50. Write two equations that would
be used to solve the system.

Answers

Answer:

B is the answer

Step-by-step explanation:

Which could be the value of A?

A) - 10
2
C)
3
B) 0
D) 2.0

Answers

Answer:

A

Step-by-step explanation:

Zoe invested $16,000 in an account paying an interest rate of 3.6% compounded
quarterly. Assuming no deposits or withdrawals are made, how much money, to the
nearest hundred dollars, would be in the account after 20 years?

Answers

Answer:

Its 32800

Step-by-step explanation:

ill give you brainliest for the correct answer

Answers

Answer:

An equation is 2.50x + 30 = 45

You purchased 6 movies

FroYo Express charges $5.75 for a large cup of frozen yogurt and $0.25 for each topping. The Big Chill charges $2.75 for a large cup of frozen yogurt and $1.25 for each topping.
The graph represents the relationship between the number of toppings, x, and the total cost of a large cup of frozen yogurt, y, at the two stores.
For what total cost are the number of toppings the same at both stores?

Answers

Answer:

3 toppings for a total of $6.50

Step-by-step explanation:

Based on the information provided we can calculate the cost of a yogurt using the following equations for both Froyo Express (F) and The Big Chill (B) , where the variable x represents the number of toppings...

F = 5.75 + 0.25x

B = 2.75 + 1.25x

Now that we have both equations we can simply make one equal to the other and solve for x in order to calculate at what number of toppings the prices will be the same...

5.75 + 0.25x = 2.75 + 1.25x  ... subtract 2.75 and 0.25x on both sides

3 = 1x ... divide both sides by 1

3 = x

Finally, we can see that at 3 toppings the total cost of both stores will be the same at $6.50

A change jar contains nickels and quarters. The number
of nickels is 4 less than twice the number of quarters. If
the sum is $2.25, find how many quarters are in the jar

Answers

Answer:The answer is 7

Step-by-step explanation:

Use the drop-down menus to choose steps in order to correctly solve
4k - 6= -2k - 16 - 2 for k.

Answers

4K-6=-2K-16-2. Start by simplifying terms on each side. 4K-6=-2K-18. Get the terms together. 6K=-12. Now simplify by division. K=-2. If u plug the answer back in the equation they will equal each other so I know I’m right.

how do you simplify this ​

Answers

Answer:

-4c+11

Step-by-step explanation:

Two planes travel at a constant speed. Plane A travels 2,700 miles in 5 hours. Plane B travels 3,815 miles in 7 hours. Which plane is faster?

Answers

Answer:

Plane B is faster

Step-by-step explanation:

What is the y-intercept of the equation?

Answers

Answer:

45

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

What is the equation of the graphed line in slope intercept form?
(Graph is in the picture)

Answers

Answer:

y = 3x + 4

Step-by-step explanation:

y = mx + c where m is the slope and c is the y intercept.

Slope  = [tex]\frac{rise}{run}[/tex]

Slope (taken from points (0, 4) and (1, 7)) = [tex]\frac{7-4}{1-0}[/tex]

                                                                   = 3

y-intercept = 4

Equation: y = 3x + 4

A department store is offering the same percentage discount on all of their shoes. Suppose one pair of shoes is marked down from $70 to $49. Based on that percentage discount, what would the new price be for a pair of shoes that originally cost $100?

MIDDLE SCHOOL QUESTION

Answers

Answer: $70

Explanation: 49 is 70 percent of 70, which means the price was reduced 30%. If we reduce $100 by 30%, we get 70
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