Mathematics High School

-3(1+6r)=14-r


in class need help

Answers

Answer 1

Answer:

r = -1

Step-by-step explanation:

-3(1+6r)=14-r

Distribute the -3

-3*1 -3*6r = 14-r

-3 -18r = 14 -r

Add 18r to each side

-3-18r+18r = 14-r+18r

-3 = 14+17r

Subtract 14 from each side

-3-14 = 14+17t-14

-17 = 17r

Divide by 17

-17/17 = -17r/-17

-1 =r

Related Questions

13. SOLVE FOR X
21)
18
21
x+ 13
A) 8
C) 7
28
B) 11
D) 6

Answers

Well first go to 'Add Attachments' when your asking a question.

Click whatever file/photo that you wanna show us, and click done.

See?

Ta da~

Carlos and Lily want to know the combined amount of money they made last week. They both made $12 per hour, but Carlos also made a $35 bonus. Carlos says the combined amount is 12C + 35 + 120 where Cis the number of hours he worked, and L is the number of hours Lily worked. Lily says the combined amount is 12(C+ L) + 35. Who is right? Explain.

Answers

Answer:

Lily is right

Step-by-step explanation:

Carlos made:

12C + 35

Lily made:

12L

Together they made:

12C + 35 + 12L = 12(C + L) + 35

Lily is right. We don't know what 120 means in Carlos's equation, he should put 12L for Lily.

Given that f(x) = x/2 +5,
a) Find f(2)
b) Find f^-1(x)
c) Find f^-1(5)

Answers

Answer:

f(2)=6

f^-1(x)=2x-10

f^-1(5)=0

hope it helps

A music collection includes 19 ROCK CDs, 12 COUNTRY CDs, 6 CLASSICAL CDs, and 5 HIP HOP
CDs. What is the probability that a CD randomly selected from the collection IS a classical CD?

Answers

Answer:

The probability is 6/42. If you need it simplified it's 1/7.

Step-by-step explanation:

If it's wrong please let me know :)

help me please I need

Answers

Answer:

I think the answer is A=49

Jonathan drives 845 miles in 5 hours. What is his average rate of speed in miles per hour?

Answers

845 / 5 = 169
his average rate of speed is 169 mph.

Answer:

ok so it is 169

Step-by-step explanation:

ok i hope this is correct i used a calculator so sorry if its wrong all i did was divide some stuff

if its correct can u give me the crown

if u dont want to thats alright

i divided 845 and 5 and got 169

An older person is 8 yes older than seven times the age of a younger person. The sum of their ages is 32. What are their ages?

Answers

The answers are 3 and 29
Hope this helps if it does please consider making my answer brainliest

If the probability that Caleb makes a free-throw is 60% what is the probability that Kayla makes two free throws in a row?

Answers

You cannot tell with the data 60%

Please help me with this
Brainiest answer to who ever is correct

Answers

Answer:

y=-2x-3

Step-by-step explanation:

Answer:

so slope or gradient is -2

Step-by-step explanation:

y=-2x-3


Which fraction does point A show?
A.3/7
B.3/4
C.8/5
D.7/4

Answers

Answer:

d 7/4

Step-by-step explanation:

help please i need you

Answers

Answer:-10hy-4h

Step-by-step explanation:

h*-10y and h*-4

Please help me please

Answers

Answer:

B

Step-by-step explanation:

Cristal had $157 in her checking account. She then made a deposit of $160. Find her new account balance.

Answers

Answer:

$317

deposit: add

157+160= 317

According to the property a/b = a/b which choice is equivalent to the quotient below? 30/5

Answers

Answer:

Answer is

Step-by-step explanation:

D

Lala!smzl!smzkaka

what is 2x + 7x + 8a + 9a

Answers

Answer: 9x + 17a

Step-by-step explanation:

2x + 7x + 8a + 9a

2x+7x= 9x

8a+9a= 17a

= 9x +17a

Answer:

9x + 17a

Step-by-step explanation:

9x + 17a. (A side note is that you can't add x and a together because they are different variables.)

Use the GCF (Greatest common factor) to factor the expression 3.02
+ 8x

Answers

Answer:

hi

Step-by-step explanation:

what is the answer to the question -6=n+5n

Answers

Answer:

-1=n I believe would be the answer.

what is 8333333333/100000000000 simplified? It might be hard but I need help and it's for tonight. Thanks!

Answers

0.08 is the answer because it was easy to do and it was good

Tom has a 4-sided spinner and the table below shows the probabilities
that when the spinner is spun it will land on 1, 3 and on 4
Number
1
2
3
4
Probability
0.1
0.2
0.4
The spinner is spun once.
a) What is the probability that the spinner will land on 2?
Il
(1)
b) Which number is the spinner least likely to land on?
(1)
c) If Tom spins the spinner 80 times, work out an
estimate for the number of times the spinner will land on 3
(2)

Answers

Answer:

0.3

Step-by-step explanation:

it's the only one not there

The value of a car decreases by 5% each year. Sophie bought a car two years ago for £10000. Work out the value now.

Answers

Given:

The value of car before two years = £10000

The value of the car decreases by 5% each year.

To find:

The present value of the car.

Solution:

The exponential decay model for present value is

[tex]y=a\left(1-\dfrac{r}{100}\right)^t[/tex]

Where, a is the initial value, r is the rate of decay and t is time in years.

Putting P=10000, r=5 and t 2, we get

[tex]y=10000\left(1-\dfrac{5}{100}\right)^2[/tex]

[tex]y=10000\left(1-0.05\right)^2[/tex]

[tex]y=10000\left(0.95\right)^2[/tex]

On further simplification, we get

[tex]y=10000(0.95)(0.95)[/tex]

[tex]y=9025[/tex]

Therefore, the present value of the car is £9025.

A tree measured 12 1/2
feet tall. Over the next 5 1/2
years it grew to be 51 feet tall.

During the 5 1/2
years, what was the average yearly growth rate of the tree?

Answers

Answer:4.08 ft a year or 1 and 5/8 feet a year (approx)

Step-by-step explanation:

It's  12.5 feet the first year

51 feet 5 years later

If you do the math and divide 51 by 12.5, you get 4.08 which is around 1 and 5/8 ft

12.5x4.08 is  51 feet.

So the tree grows approximately 1 and 5/8 feet a year

How many radians is 252°?
Give the exact answer in simplest form

Answers

Radian is a more advanced degrees measurement that is easier to use in trigonometry physics etc.

A full circle 360 degrees is 2pi radian.

We just need to find the ratio of 252 degrees to 360 degrees and multiply that by 2pi.

252/360*2pi(rad)

=126/180*2pi(rad)

=63/90*2pi(rad)

=21/30*2pi(rad)

=7/10*2pi(rad)

=7/5*pi (Radian)

Hope it helps and sorry for my bad grammar.

The markings on the number line are evenly spaced. Label the other markings on the number line.

Answers

Answer:

A= -75

B= -60

C= -45

D= -15

E= 15

F=30

Step-by-step explanation:

Each point is 15 away, so you just add or subtract 15 based off of if it's a negative or positive number on the number line.

Hope this helped!

if we vibe for 3 hrs and become freinds how long will we be freinds?

Answers

Answer:

it depends

Step-by-step explanation:

I could be very committed,

im 15 in july my name is mercedes. and im bi, I skate and taken

A cylinder cooler has a diameter of 30inches and a height of 24 inches.Runners on a Marathon can use cone shaped cups to get a drink from the cooler.if the cups have a diameter Of 3 inches and a height of 4 inches,about how many full cups would be able to be filled from the cooler?Estimate useing 3.14 for pi.

Answers

Answer:

600 cups

Step-by-step explanation:

600. Cups turrrrrrrrrr

I need help with this

Answers

A and C is the correct answers

Find the slope of the line that passes through (0, -5) and (3, -4)

Answers

Answer: I believe it is 2

slope=y2-y1/x2-x1

y2-y1= (0,-3)

x2-x1= (4,5)

m=5-(-3)/4-0

m=2

Solve: 5x=-6x+9
A: x= -9
B: x= -9/11
C: x= 9
D: x= 9/11

Answers

Answer:

x = 9/11

Step-by-step explanation:

5x = -6x + 9

Add 6x to both sides

11x = 9

Divide both sides by 11

x = 9/11

Answer:
X Equals 9/11

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable. So X will equal 9/11, which in decimal form is 0.81.

x + 3 = 15
Solve the equation and check for the solution

Answers

Answer:

x=12

Step-by-step explanation:

move the 3 to the other side to get x by itself.

check: 12 + 3 = 15

Answer:

(Not sure)

x = 12

Step-by-step explanation:

x + 3 = 15

CLT

X = 15-3

× = 12

Jeremy received a Bill with a balance due of 25.60

Answers

Answer:

6.40$

Step-by-step explanation:

HOPE THIS HELPS

PLZZ MARK BRAINLEIST

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