-2a + 3 = 30-12 what does that equal ? ​

Answers

Answer 1
-2a =15
a = -7.5
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Answer 2
You would do 3=-3 then put -3 below 18 because 30-12=18 then do 18-3=15 then -2a/2 then 15/2,15/2 equals 7.5 so a=7.5

Related Questions

Which Property of Addition does 3 + 0 = 3 illustrate?

a. Associative Property
b. Commutative Property
c. Identity Property
d. Distributive Property​

Answers

Answer:

c identity property is illustrated by 3 + 0 = 3

C, identity Property a number plus zero is equal to the same number. Explanation, 5 + 0 = 5

The following table shows the total number of quizzes taken in high school. How many quizzes are taken per week?

Answers

Answer:

4

Step-by-step explanation:

y÷x

12÷3=4 and 20÷5=4

4 quizzes are taken per week.

A linear equation is given by:

y = mx + b;

where y, x are variables, m is the rate of change and b is the y intercept.

Let y represent the total number of quizzes after x weeks.

From the table we can see that when y = 12, x = 3 and when y = 20, x = 5. Hence:

Number of quizzes per week = 12/3 = 20/5 = 4

Hence, 4 quizzes are taken per week.

Find out more at: https://brainly.com/question/13911928

y = -8x - 24 into factored form

Answers

Answer:

Y = -8(x + 3)

Step-by-step explanation:

Divide the whole equation by -8 to get x by itself

Y = -8(x+ 3)

2x + 5y = 16,3x-5y=-1

Answers

Answer:

the answer is  [tex]x=3,\:y=2[/tex]

Step-by-step explanation:

if you want an explanation lemmie know but I rly dont feel like putting one bc its a lot to do but that is the correct answer lol

and try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations

Trapezoid WXYZ is shown below. What series of reflections will map the image back onto the original pre-image?

a. -axis, -axis, -axis, =

b. -axis, -axis, -axis, -axis

c. -axis, -axis, -axis, =

d. -axis, =1, -axis, =1

Answers

Answer:

d

Step-by-step explanation: i think

Need help with this identify if its a polynomial binomial or trinomial ILL GIVE YOU THE BRAINLIEST IF U ANSWER THIS CORRECTLY
1. 2x^2 + 4x
2. 4x^4 - xy + 9
3. 16x^3
4. 9
5. xy + 9

Answers

1. Binomial
2. Trinomial
3.monomial
4.monomial
5.Binomial

Choose the scenario below that matches this number sentence:

3 ÷ 11

A) 3 people share 11 cupcakes.
B) 11 people share 3 pounds of turkey.

Answers

Answer:

b

Step-by-step explanation:

The answer is fasho B

In an orchard, there are 6 apple trees for every 4 pear trees. Create a ratio table to determine the number of apple trees in the orchard if there are 42 pear trees.

Answers

Answer:

........................what's the question ❓

Laura left Dunkin Donuts at 1 PM traveling 30 mph. Two hours later her friend Jen left the same Dunkin Donuts and started after her on the same route traveling 45 mph. At what time will Jen catch up to Laura?

Answers

Answer:

It took Jen 4 hours to catch up with Laura

Step-by-step explanation:

Gaining speed 45-30= 15 mph

Laura's head start 30×2=60 miles

Time for Jen to catch up 60÷15= 4 hours

In other words

30(t+2)= 45t

30t+60= 45t

60=45t-30t

60= 15t

t=4 hours

9d^3+5d-8/3d-2
solve using long division monomials

Answers

Answer:

3d² + 2d + 3 remainder -2

Step-by-step explanation:

You spend 3 2/5 hours hiking and an additional 1/2 hour to rest.

How much time did you spend hiking and resting?

Answers

Answer:

3.9 hours

Step-by-step explanation:

3 2/5 + 1/2 = 39/10

3 9/10 =

3.9 hours

help me please if you can

Answers

Answer:

https://brainly.com/question/19363018

Step-by-step explanation:

Try ur hardest and Brianly is not the best way to get awnsers quizlet is :) You welcome

ps. look it up thats the best way (:

225 students went on a field trip. Five buses were filled and 35 students traveled in cars. How many students were in each bus?

Answers

Answer:
45 students per bus.
Step-by-step explanation:
225 divided by 5 is 45.

Answer:

38 students per bus

Step-by-step explanation:

225-35=190

90/5=38

What is 41/50
as a percentage?

Answers

Answer:

82%

Step-by-step explanation:

A percent a fraction of one hundred so multiply the numbers by 2 to make it 82/100 then remove the one hundred making it 82%

Question
3/4 + 15.4 =

Answers

Answer:

16.15

Step-by-step explanation:

15.4+0.75

3/4= 0.75

The answer is 16.5 because you add 3/4 to 15.4 but you need to convert it into a decimal which is .75


Raul earns $37.50 for 3 hours of babysitting. He earns the same amount
per hour each time he babysits. How many hours does Raul have to babysit to earn $100

Answers

9 hours

Step-by-step explanation:

cuz that's the answer

Raul would have to babysit for 8 hours to earn $100.

What is the division operation?

In mathematics, divides left-hand operands into right-hand operands in the division operation.

To determine the number of hours Raul has to babysit to earn $100, you need to divide the amount he wants to earn ($100) by the amount he earns per hour.

The amount of Raul earns per hour by dividing the total amount he earned by the number of hours he worked.

As per the question, Raul earned $37.50 for 3 hours of babysitting,

So, he earned $37.50 / 3 hours = $12.50 per hour.

This means that to earn $100, he would have to work:

⇒ $100 / $12.50 = 8 hours.

Therefore, he would have to babysit for 8 hours to earn $100.

To learn more about the division operation click here :

brainly.com/question/25870256

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Convert 3500 meters into yards. Round your answer to the nearest whole number.​

Answers

Answer:

yesss a 3500 = 5066

Step-by-step explanation:

this is my answer

Answer:

3828

Step-by-step explanation:

the exact no. is3827.6465

when you round it it will be 3828

It's in 8th grade math geometry​

Answers

Answer:

sorry i have no clue

Step-by-step explanation:

PLEASE HELP FAST

Let mZA = 30°. If ZB is a supplement of ZA, and ZC is a complement of 2A, what is mZB+m2c?
A. 60°
B. 150°
C. 180°
D. 210°

Answers

C should be the answer. I cant explain it because its hard to explain

describe a system of linear equations that has no solution?​

Answers

Answer:

If a consistent system has an infinite number of solutions, it is dependent . When you graph the equations, both equations represent the same line. If a system has no solution, it is said to be inconsistent . The graphs of the lines do not intersect, so the graphs are parallel and there is no solution.

Step-by-step explanation:

Hope this helps - Good luck ^w

we can conclude that the system of linear equations has no solution when the graphs of equations are parallel.

What is a linear system of equations?

A system of linear equations consists of two or more equations made up of two or more variables such that all equations in the system are considered simultaneously. The solution to a system of linear equations in two variables is any ordered pair that satisfies each equation independently.

The collection of one or more linear equations, such that each of those equations have same set of variables, are known as system of linear variables.  

If a consistent system has an infinite number of solutions, it is dependent. When we graph the equations, both equations represent the same line.If a system has no solution, it is said to be inconsistent . The graphs of the lines do not intersect, so the graphs are parallel and there is no solution.

Therefore, we can conclude that the system of linear equations has no solution when the graphs of equations are parallel.

To learn more about the linear system of an equations visit:

https://brainly.com/question/27664510.

#SPJ2

Ruth wants to buy a skateboard for $44. She has $100 in her account. She spent $11.36 to buy stationary. She also wants to buy some comic books for $3.72 each. What is the maximum number of comic books, n, that Ruth can buy so that she has enough money left to buy the skateboard? (1 point)

Answers

Given :

Ruth wants to buy a skateboard for $44.

She has $100 in her account. She spent $11.36 to buy stationary.

She also wants to buy some comic books for $3.72 each.

To Find :

The maximum number of comic books, n, that Ruth can buy so that she has enough money left to buy the skateboard.

Solution :

Money left after buying skateboard and stationary is :

Money left = $(100 - 11.36 - 44)

Money left = $44.64

Number of comic she can buy is :

[tex]n = \dfrac{44.64}{3.72}\\\\n = 12[/tex]

Therefore, she can buy a maximum of 12 books.

Hence, this is the required solution.

Answer:

12

Step-by-step explanation:

Here are ten numbers:
3 7 2 4 7 5 7 1 8 8
a)
Write down the mode.
b)
Work out the median.
c)
Calculate the mean.
d)
What is the range?​

Answers

Answer:

Here are ten numbers:

3 7 2 4 7 5 7 1 8 8

a)

Write down the mode. 7

b)

Work out the median.

c)

Calculate the mean. add all and divide by 10

d)

What is the range? 7

Answer:

Mode: 7

Median: 6

Mean: 5.2

Range: 5

Step-by-step explanation:

For the mode you have to find which number is present the most times

For the median you have to find the middle number if the total sum of numbers is an odd number, and find the average of the two if it is an even number ,like i did here (7+5)/2=6

For the mean you have to add every number and then devide with the total number of the numbers given:

(3+7+2+4+7+5+7+1+8+8)/10=5.2

For the range you have to find the largest number and subtract the smallest number from it (8-3)=5

Simplify the expression.
-1+1(-7+3v)-5v

Answers

Answer:

                                          -1+1(-7+3v)-5v  

               

Pull out like factors :

  -2v - 8  =   -2 • (v + 4)  

Final result :

 -2 • (v + 4)

The six part of the age that I will have in 4 years

Answers

Answer:

10 i think i didnt really get your question though

f(x) = 2x + 1 and y = 2x + 1 are the same function written in different notation
True or False?

Answers

Answer:

True

Step-by-step explanation:

2x+1 is the same both times. F(x) is just another way to write y

In a park, the locations of a drinking fountain, a streetlight and a flagpole form a right triangle. The drinking fountain is 12 yards north of the streetlight, and the flagpole is 5 yards east of the drinking fountain.

What is the shortest distance, in yards, from the streetlight to the flagpole?
A.7
B.11
C.13
D.17

Answers

Answer:

13

Step-by-step explanation:

Help me with this math

Answers

Answer:

2 21/13

Step-by-step explanation:

I’m having problems solving this problem

Answers

The angle next to f is 180-125=55
D is also 55, so in the triangle there is 2 angles that are 55
To know DEF 180-55-55= 70

Please help me with this question... please

Answers

Answer:

B

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Work out the missing numbers

Answers

Answer:

A -19

B -35

C -180

D-9

Step-by-step explanation:

Answer:

1.= -19 2. -35  3. -180    4.  -81

Step-by-step explanation:

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