help please please please

Answer:

x=19

Step-by-step explanation:

4x-3x-12=7

x-12=7

x=7+12

x=19

Answer:

x=19

Step-by-step explanation:

first you would distribute the -3 to the x and the 4 which would give you

4x-3x-12=7

next you would combine like terms (there's always an invisible 1 one front of a variable)

x-12=7

then to get the variable by itself you would add 12 on each side

x=19

hope this helped :)

Answer:

C.13

Step-by-step explanation:

Answer:

0.25 but I am not sure umm I think

Step-by-step explanation:

2 horror and 6 drama DVDs.

Let x be the no. Of horror dvds

15 = 7+ x+x+4

4=2x

x=2

Answer:

Step-by-step explanation:

3.75

Water flows through a pipe at a rate of 3.75 fluid quarts per minute.

Multiplication is a mathematical arithmetic operation. It is also a process of adding the same types of expression for some number of times.

Example - 2 × 3 means 2 is added three times, or 3 is added 2 times.

Given:

Water flows through a pipe at a rate of 2 fluid ounces per second.

2 ounces = 0.0625 quarts

And 1 second = 0.0166667 minutes

So, water flows through a pipe at a rate of 0.0625 quarts per 0.0166667 minutes.

Water flows through a pipe at a rate of 3.75 fluid quarts per minute.

Therefore, the rate is  3.75 fluid quarts per minute.

To learn more about the multiplication;

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Answer:

x=31

Step-by-step explanation:

180-75=115

4x-9=115

4x=124

x=31

We are given:

Afsheen can read 39 pages in 30 minutes

Time taken by Afsheen to read 1287 pages:

Time taken to read 1 page:

Time taken to read 1 page = time taken to read 39 pages / 39

Time taken to read 1 page = 30 minutes / 39

Time taken to read 1 page = 0.77 minutes

Time taken to read 1287 pages:

Time taken to read 1287 pages = Time taken to read 1 page * 1287

Time taken to read 1287 pages = 0.77 * 1287

Time taken to read 1287 pages = 991 minutes OR 16.52 hours (Approx)

Answer:

in 1 hour = 2×39= 78 pages

so 1287 pages= 1287÷78= 16.5 hours

Step-by-step explanation:

it takes 16. 5 hours that means 16 hours 30 min

Answer: B or 3

Step-by-step explanation:

had this question on my quiz

Answer:

y = 1/4x + 5

General Formulas and Concepts:

Pre-Algebra

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Slope-Intercept Form: y = mx + b

Step-by-step explanation:

Step 1: Define

Random Point (-4, 4)

y-intercept (0, 5)

Step 2: Find slope m

Step 3: Write linear equation

y = 1/4x + 5

All the possible numbers:

numbers greater than 400:

your answers : 527, 572, 725, 752

mrk as brainleist ☺️

Answer:

274

Step-by-step explanation:

The standard algorithm of multiplication is based on the principle that you already know: multiplying in parts (partial products): simply multiply ones and tens separately, and add.

However, in the standard way the adding is done at the same time as multiplying. The calculation looks more compact and takes less space than the “easy way to multiply” you have learned.(i really think this is correct but I am so so sooo sorry if it's not!!!!)

Answer: 36

Step-by-step explanation: 72/6= 36

72/2= 37

Answer:

d

Step-by-step explanation:

make me brainelist

Answer:

its ( 3,5) Equation form is: x  =  3  ,  y  =  5

Step-by-step explanation:

By simplifying the given equation, we can see that the ratio a:b is:

8:1

We start with the equation:

(a + 3b)/5 = (a - 2b)/2

The first thing we need to isolate each variable in one side of the equation.

(a + 3b)/5 = (a - 2b)/2

2*(a + 3b) = 5*(a - 2b)

2a + 6b = 5a - 10b

6b + 10b = 5a - 2a

16b = 2a

So, 16 times b is equal to 2a

We can write this as:

b/2 = a/16

b = a/8

Then the ratio a to b is:

8:1

Learn more about ratios:

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Answer:

True

Step-by-step explanation:

Being organized, having a study schedule and reviewing your work are all great habits to becoming a well-rounded student and generally succeeding in a course.

Please rate 5 stars and/or say thanks if I was able to help!

Have a good day!

~Roi

Answer:

-51 + 60

Step-by-step explanation:

When subtracting with negative numbers use the "keep, change opposite" skill. Keep your first number which in this case, is -51, then change the subtraction sign to addition and lastly change the sign of your last digit which is (-60) so opposite of that just 60.

Answer:

I am not certain but

Step-by-step explanation:

4. y=-6x-48

5.-7 and 4

thoes are the only ones I know but good luck

Answer:

the number of protons in the nuclues of an atom

Answer:

Rule: The sum of any integer and its opposite is equal to zero. Summary: Adding two positive integers always yields a positive sum; adding two negative integers always yields a negative sum. To find the sum of a positive and a negative integer, take the absolute value of each integer and then subtract these values.

Step-by-step explanation:

Hope this helped if so leave a rating! :)

THANKS!

Answer: The last member has to finish 11 more laps to complete 50 total laps

Step-by-step explanation:

[tex]\frac{4}{10}[/tex] of 50 =         20

2nd swimmer    8

22% of 50 =   + 11      

                        39 laps

---------------------------------------------

50 - 39 = 11 laps   (4th and last swimmer)

---------------------------------------------

P.S. I think this answer is late now

Answer:

A

Step-by-step explanation:

f(g(3)= f(g(x=3)) = f([tex]\frac{3+1}{3-1}[/tex]) = f(4/2) = f(2) = f(x=2) = 3*2-7 = 6-7 = -1

Answer:

Step-by-step explanation:

A . It is the correct answer

Answer:

7

Step-by-step explanation:

:)

Answer:

-8

Step-by-step explanation:

Answer: 14

Step-by-step explanation: bru is simple

Answer:

8+3e=8+3(2)=8+6=14. aswer is 14

hope this helps u plz give me the brainliest pplzz