Combine the like terms to create an equivalent expression.
5r + 15 - 2r - 5

Answers

Answer 1
3r + 10 is the answer

Related Questions

What is the b value of the equation
y= -4x - 10?

Answers

Answer: -10

Step-by-step explanation: In slope-intercept form, the formula is y = mx + b with m = slope and b = y-intercept. In the expression, the "b" is -10. Therefore, the b value of this equation is -10.

16. What is the sum of 8x2 +12 - y2
and x2 - 13+8xy?

Answers

Answer:

9x2-y2 + 8xy -1

Step-by-step explanation:

9x2 -1 - y2 +8xy

9x2-y2 + 8xy -1

The sum of these two given quadratic function is (9x² - y² + 8xy - 1).

What is a quadratic function?

A quadratic function is a function that has a variable with the highest power of the variable is 2.

A quadratic function may contain more than one variable. However, the highest degree of any variable must be 2.

Given, two function are 8x² + 12 - y² and x² - 13 + 8xy.

Therefore, the sum of these two given function are:

(8x² + 12 - y²) + (x² - 13 + 8xy)

=  8x² + x² - y² + 8xy +12 - 13

= 9x² - y² + 8xy - 1

Learn more about quadratic function here: https://brainly.com/question/5975436

#SPJ2

help me please, if it's right i'll mark you brainliest :D

Find the area of the parallelogram.

Answers

Answer: i think it's 64

Please help!!

Use Heron’s Area Formula to find the value of “x” in the triangle with the given measures. Area = 21.3
[A] x=7.6
[B] x=7
[C] x=8.7
[D] x =5.9

Answers

Answer:

the answer is B, x=7

Step-by-step explanation:

heron's area formula:

[tex] s = \frac{a + b + c}{2} [/tex]

[tex]area = \sqrt{s(s - a)(s - b)(s - c)} [/tex]

how many solutions does the equation 2(9x-6)=18x+2 have??? Please help

Answers

Answer:

x=5.889

Step-by-step explanation:

2(9x6)=18x+2

108=18x+2

106=18x

x=106÷18

x=5.888888889

SOLVE THISSS (3x+6)/3=-1

Answers

Answer:

x = −3 TRUSSSSSSTTTT MEE

Step-by-step explanation:

THE PERSON ABOVE ME SAID -3

i don't understand this equation -6n+21=12n-15

Answers

Answer:

n=2 dont add your -6n and 21 together only variables can go with variables and you learn this in 6th-7th grade anyway.

Write a linear function f with the values f(−1)=8 and f(5)=6.

Answers

Answer:

f(x)=-1/3x+7 2/3

Step-by-step explanation:

Find the slope:

m= -1/3

Find the y-intercept:

b= -7 2/3

What is c?



1.51=c10

c = can someone explain I'm a little confused >

Answers

Answer:

0.151

Step-by-step explanation:

1.51=c10

we divide 10 by both sides

1.51/10 = c10/10

we cancel 10/10 and 1.51/10=0.151

so

c=0.151

tell me if u need a more clear explanation

Answer: 15 hope this help's and if not please give a bad rating

What is the equation of the line that passes through the point (-4,-6)(−4,−6) and has an undefined slope?

Answers

Answer:

x = -4

Step-by-step explanation:

there is no y-intercept when slope is undefined

Undefined slope indicates a vertical line passing through the x-axis at the x-coordinate of any known point

what percent of 30 is 12?​

Answers

the answer is 6 :))))))))

Which number is a solution of the inequality? 8

Answers

Answer:

i need more info or i cannot help

Answer: -1

Step-by-step explanation:Solve: 8(7−x)<64.Divide both sides by 8.7−x<6487−x<8Subtract 7 from both sides.−x<8−7−x<1Multiply both sides by −1. This will reverse the inequality.x>−1

help a girl out plz!! im confused

Answers

Answer:

30

Step-by-step explanation:

distribute the 5 to z and 4 --> 5z + 20

same with 5 to the 2 and -z --> 10-5z

5z + 20 + 10 - 5z = ? combind like terms

the z cancle out leaving 20 + 10 = ?

Answer:

20z-10z

Step-by-step explanation:

Distribute the 5 to both z and 4 which would make it 20z

Distribute the 5 to the 2 and -z which gives you 10z

Put them together and you get the answer

find the slope of the line parallel to the coordinates -5, 1 and -1, 2

Answers

Answer:

m = 1/2 or 0.25

Step-by-step explanation:

Brainliest Please!!

what two numbers' sum=-4 and product=-2

Answers

Let a and b be the two numbers. Then

a + b = -4

a b = -2

Solve the second equation for b :

b = -2/a

Substitute this into the first equation:

a - 2/a = -4

Multiply both sides by a :

a² - 2 = -4a

Move 4a to the left side:

a² + 4a - 2 = 0

Use the quadratic formula to solve for a :

a = (-4 ± √(4² - 4(-2))) / 2

a = -2 ± √6

If a = -2 + √6, then

-2 + √6 + b = -4

b = -2 - √6

In the other case, we end up with the same numbers, but a and b are swapped.

Jim is having a Halloween party for 60 children. He will give each child at least one candy bar. If each bag of candy contains 12
candy bars, which inequality gives the minimum number of bags, b, Jim will need to buy?
Yes

Answers

Answer:

5 bags of candy

Step-by-step explanation:

60/12= 5

Since there are 12 pieces of candy in each bag, 12*5= 60, so each kid can have 1 piece of candy.

Answer:

5<b

Step-by-step explanation:

A 2-gallon jug of water costs $14.24. What is the price per quart?

Answers

Answer:

p

Step-by-step explanation:

p

Find the equation of a line that passes through the points (-1,3) and (3,5). Leave your answer in the form y = m x + c

Answers

Answer:

y

=

2

x

+

13

Explanation:

You can use point-slope form to determine the slope

m

:

y

2

y

1

=

m

(

x

2

x

1

)

Given:

p

1

=

(

x

1

,

y

1

)

=

(

3

,

7

)

p

2

=

(

x

2

,

y

2

)

=

5,3)

Finding the slope:

3−7=m(5−3)−4=2m⇒m=−2

Step-by-step explanation:

Find the domain and range please

Answers

Answer:

-2 is the domain

2 is the range.

Find the value of x in the triangle shown below

Chose 1 answer

A. x = 2

B. x = 5

C. x = square root of 5

D. x = square root of 17

Answers

Answer:d

Step-by-step explanation:

Answer:

i think d

Step-by-step explanation:

it seems right

PLEASSSEEEE HELP ME FIGURE THESE OUT ILL GIVE YOU ALL MY POINTS!!!

Answers

Answer:

LOL i don't even know

Step-by-step explanation:

PLEASE HELP ME............THANKS

Answers

Answer:

i think it's c, I could be wrong djxndnxmmx

Answer:

{2,4,9,16}

Step-by-step explanation:

Range are the y values, which are on the right.

mark walked 21,129 feet in one hour. at that speed, how many miles will he walk in 2 hours

Answers

so a mile has 5280 feet.

21,129/5280= 4 mph

multiply

4 x 2 = 8 miles in 2 hours

Answer: 23.129

Step-by-step explanation:

What is the slope of the line that passes through the points (4, 5) and (12, 7)?

Answers

Answer:

1/4

Step-by-step explanation:

To find slope, we use the formula rise over run (y2-y1 over x2-x1)

So first, our y's: 7-5=2

And our x's: 12-4=8

2/8 simplifies to 1/4

IS THIS CORRECT?

A 2 fl oz bottle of orange juice costs $8, and a 4 fl oz bottle of orange juice costs $12. Which is a better buy?

ANSWER= 4 fl oz bottle of orange juice that costs $12 is the better buy.

Answers

Answer:
Yes
Explanation:

Answer:

yes 4fl oz bottle of orange juice that costs $12 dollars is better to buy

Step-by-step explanation:

2 bottles of orange juice=8$

if you split 8$, you get 4$ that means each bottles of orange juice is 4$

so if you get 4 bottles of orange juice it is 4$x4$= 16$ The question says that 4 bottles cost 12$ its supposed to be 16$. So the 4 fl oz bottle of orange juice that costs 12$ dollars is better to buy.

1 bottle=4$               2x4=8$ (the first equation)    

1bottle=4$                4x4=16 (the second equation)   But the question says we got the bottle of orange juice for 12$ its supposed to be 16$ that is a huge discount. so yes the answer is correct.      

Find The Angle (See Image)

Answers

Answer:

do you how many there is 5 angles if thats what ur asking

Step-by-step explanation:

You and your friend are in a canoe race. Your friend is a half mile in front of you and paddling 3 miles per hour. You are paddling 3.4 miles per hour. You are 8.5 miles from the finish line. How long will it take to catch up to your friend?

Answers

Answer:

To catch your friend you have to paddle for 1.25 hours

Step-by-step explanation:

Your friend is 0.5 mile in front of you and paddling 3 miles per hour. You are paddling 3.4 miles per hour.

Since the speed is the relationship between the space traveled by an object and the time used for it, then the distance is defined as:

distance= speed*time

Being x the time it takes to reach your friend, then your friend's position will be:

3miles per hour*x + 0.5 (since your friend  is 0.5 mile in front of you)

while your position is:

3.4 miles per hour*x

When you reach your friend the position of both should be the same. So:

3*x + 0.5= 3.4*x

Solving:

0.5= 3.4*x - 3*x

0.5= 0.4*x

0.5 ÷0.4= x

1.25= x

This means that to catch your friend you have to paddle for 1.25 hours

A computers random number generator produces random integers from 1 - 50. What is the probability that the first three integers generated for single digit numbers

Answers

Answer:

9/50

Step-by-step explanation:

There are nine single digit numbers from integers 1-50 so in order to calculate the probability of getting 3 random numbers from 1-50 to be single digits:

Probability = number of favorable outcomes /total number of outcomes

Therefore Probability of getting 3 single digits randomly from 1-50 = 9/50

A family is calculating the cost for one semester of college next year. Each hour of class will cost $155. A scholarship gift of $64 can be deducted from costs. If h is the number of hours taken, and c is the total cost, which equation can be used to calculate the total tuition costs for a semester?

C=89h

C=155h+64

C=155h-64

C=-155h-64

Answers

Answer:

c=155h-64

Step-by-step explanation:

you mulitply the cost of the classes by the amount of hours, then you deduct the scholarship gift(64) from the total and get your total cost of the semester

Please help me solve these problems! I'll give you all my brain points. IM DESPERATE!!!
:-;

Answers

Answer: kg

Step-by-step explanation:

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