solve for the value of r

Answers

Answer 1

Answer:

[tex]r = 13[/tex]

Step-by-step explanation:

[tex](8r + 5) + (5r + 6) = 180 \\ 13r + 11 = 180 \\ 13r = 180 - 11 \\ 13r = 169 \\ \\ r = \frac{169}{13} \\ \\ r = 13[/tex]

Related Questions

find the value of f(5)

Answers

Answer:

The answer is 4.

Step-by-step explanation:

PLEASE MARK AS BRAINLIEST!!!!!

Every practice session at Kurt's
rink costs $5.00. Kurt goes to 4
sessions a day, 6 days a week.
How much does he spend each
week on ice time?

Answers

4 times a day
6 days a week
5 dollars per session
5x4=20
20x6=120

your answer is 120
hope this helps:)

use percent proportion 50 is 25%

Answers

Answer:

By using the formula, Parts /whole = percent/100, ⇒ 25/ 50 × 100 = 50%. So, 50 % of 50 is 25 proportion.

Gerard collects coins. he has 103 pages of quarters in his coin collection books. each page contains 16 quarters. How many quarters does Gerard have altogether?

please help!

Answers

Gerard has 1,648 coins in total because if one page has 16 multiply it by 103 and that’s what you get please mark me brainliest

1,648 quarters!
In order to figure this out you must multiple the number of quarters on each page which is 16 by the number of pages which is 103 & it gives you your answer!

What is 241m as a fraction of 5.4km

Answers

Answer:

i think 223/499

Step-by-step explanation:

Rhythm Time sells music online. Last year, its customers downloaded a total of 697,900 songs. This year, they downloaded 467,593 songs. What is the percent of decrease in annual downloads?

Answers

LEGA HEB LEFA OOOOOOOOOOOOF

please help

What information is given
in the diagram?

picture attached

Answers

Answer:

¯\_(ツ)_/¯

Step-by-step explanation:

Compare using < , =, >

Answers

Answer:

I think it is right

Answer:

a. >

b. <

c. >

d. =

e. >

f. <

g. =

h. >

i. =

j. <

Step-by-step explanation:

Can someone help me do this

Answers

Answer:

Step-by-step explanation:

t i hope this helps

Two-thirds of the students in your class are boys. One eighth of the boys play soccer what fraction of the kids in your class are boys who play soccer

Math period 4 — 9th Grade

Answers

Answer:

7 of the kids in your class play

Step-by-step explanation:

Hope this helps you :)

Which graph has a slope of 4/5?

Answers

cant see pic

Answer:

Step-by-step explanation:

Two parallel lines are cut by a transversal as shown below.
Suppose m Z4=77º. Find mZ5 and 27.
12
4/3
m 25 = [
m2 7 =
5/6
8 17

Answers

the measure of angle 5 and 7 should be 103

write the equation of a line with slope 2 and y-intercept -1. y=

Answers

Answer:

y = 2x - 1

Step-by-step explanation:

Could someone help answer this, please no spam, thank you, will give brainliest, homework help,!

Answers

Answer:

Inequality form: b > 8

Larry's age if he is 5 years younger than twice his brother's age. Use b for his brothers age.

Answers

Answer:

(b2)-5

Step-by-step explanation:

Due to a slump in the economy, a mutual fund has dropped by 30% from last year to this year. If the fund is now worth $12,495, how much was the fund worth last year?

The fund was worth $___ last year.

Answers

Answer:

$17850

Step-by-step explanation:

70% is 12495

100% is x

70x = 12495*100

70x = 1249500

x = 1249500/70

= $17850

Hope this helps... Feel free to mark this as brainliest! :D

Mason is running a lemonade stand. He sells each cup of lemonade for $2.50,and he spent $15 on the
supplies to set up his stand, Write an equation to represent the amount of money mason has after he has sold x cups of lemonade.

Answers

$2.50x - $15

Step-by-step explanation:

He is making $2.50x (x = amount of drinks sold)

Than we subtract the amount of money he lost - $15

$2.50x - $15

Hope this helps.

how to solve 1.2x+1.4y=2.7 and 0.4x-0.3y=0.9 in substitution

Answers

Answer:

x=0.8712, y=1.1818

Step-by-step explanation:

1.2x+1.4y=2.7 --(1)

0.4x-0.3y=0.9--(2)

1.2x=2.7-1.4y

x=(2.7-1.4y) / 1.2 --(3)

substitute (3) in (2)

[tex]0.4(2.7-1.4y) / 1.2 -0.3y=0.9[/tex]

[tex](1.8 - 0.56y) \frac{1}{3} - 0.3y = 0.9[/tex]

times both sides with 1/3

[tex] \frac{1}{3} (1.08 - 0.56y( \frac{1}{3} ) - 0.3y = 0.9)[/tex]

1.08-0.3=0.56y+0.1y

0.78=0.66y

y=1.1818

substitute y in (3)

x=2.7-1.4(1.1818) /1.2

x=0.8712

-1/4 + (-2/7)
Get the sum of the problem

Answers

Answer:

-0.53571428571

Step-by-step explanation:

Statement (Mathematical Steps) 12 > 7(4 + 5) − 19 show ecah reasonReason

Answers

Answer:

4 23/42 ≅ 4.547619

Step-by-step explanation:

what's the measure of <3?

Answers

The measure of angle 3 is the sum of the two opposite angles in the triangle.

m<3 = 37º + 19º = 56º

Find the mean rounded to the nearest tenth median mode and range 59,50,54,50,50

Answers

Answer:

Mean = 52.6

Median = 50

Mode = 50

Range = 9

Step-by-step explanation:

How to find the mean

The mean of a set of numbers is the sum divided by the number of terms.You add 59,50,54,50,50 then divide it by 5 because there are 5 numbers

How to find the median

Arrange the data in an ascending order and the median is the middle value. If the number of values is an even number, the median will be the average of the two middle numbers.

How to find the mode

The mode is the element that occurs most in the data set. In this case, 50 occurs 3 times.

How to find the range

Subtract the minimum data value from the maximum data value to find the data range. In this case, the data range is 59 − 50 = 9

Hope this helps

Rút gọn biểu thức √81a^6b^2

Answers

Answer:

English.........plzpzl

Mike is planting flowers in plastic cups for his science fair project. Each of the cups is filled to the top with a mixture of soil, fertilizer, mulch, and sand in different proportions. Each cup contains 1/2 cup of soil, 1/3 cup of fertilizer, and 1/8 cup of mulch. How much sand should he use to fill the cup?

PLZ HURRY

Answers

Answer:

He will need 1/8 of sand to fill the cup

Step-by-step explanation:

For 1/2 i filled half of the cup for 1/3 i made new cup split it in 3 and added it in main cup then for 1/8 made a new cup split it in 8 and added it to main cup the test is sand.

B
A
How many degrees must
Figure A be rotated
counterclockwise around
the origin in order to line
up with Figure B?
A. 90
B. 180
C. 270
D. 360

Answers

Answer:

A 90 degrees because the triangle is at a right angle and to rotate it counter clockwise

The answer is letter B. 180

giúp mìn vs mngggggg

Answers

Answer:

136.99

Step-by-step explanation:

Đây là một câu hỏi dễ chỉ cần sử dụng máy tính

Suppose that a plumbing repair bill, not including tax,

was $130. This included $25 for parts and an amount

for 2 hours of labor. Find the hourly rate that was

charged for labor.

Answers

answer: $52.50
explanation:130-25=105 105 divided by 2 hours is 52.5

what is –89.16 – 154.81

Answers

Answer:

The answer is -243.97

Step-by-step explanation:

-89.16-154.81= -243.97

A snack food company decreases the size of their single-serving size tortilla chips bag to 3.0
3.
0
ounces, which is 10%
10
%
less than the original size.

What is the original size of the bag?
Round your answer to the nearest tenth.

Answers

Maybe 10% because if u were above it it would have been

Which of the following is the Cube for 5?

A)5

B)15

C)25

D)125

Help pls

Answers

The correct answer is D: 125

The cubed of 5 is the same as: 5•5•5
When you multiply 5•5 = 25
And when you multiply 25 • 5 = 125

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