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Ipatiy [6.2K]
3 years ago
10

Thproduct of 12 and a number is 7

Mathematics
1 answer:
o-na [289]3 years ago
7 0
12n=7 is the equation
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What should you substitute for y in the bottom equation to solve the system by the substitution method?
Contact [7]
Answer: y= -x-5


Step 1: Determine which equation to change

Since we will be using the substitution method, we will need to substitute y from the bottom equation with information from the top equation. This will be the equation we change.

Step 2: Change the equation

Let’s rewrite the equation we will be working with.

3x+3y= -15

Our goal will be to get y alone on the left side. To start, let’s subtract 3x from both sides, leaving only 3y on the left side.

3x+3y= -15
3y= -3x-15

Now we need to get y completely alone by eliminating the coefficient of 3. Let’s do this by dividing each term by 3.

3y= -3x-15
y= -x-5


This is your answer. Hope this helps! Comment below for more questions.
3 0
3 years ago
Laila reads 36 pages in 4 hours which expression can be used to find the number of pages she reads per hour
djverab [1.8K]

Answer:

D

Step-by-step explanation:

 36 pages divided by 4

6 0
2 years ago
50% of what number is 30?
mote1985 [20]
I hope this helps you




%50.?=30


50/100.?=30


1/2.?=30


?=30.2


?=60
3 0
3 years ago
How to solve an algebraic expression by putting values of unknown
andrey2020 [161]

Answer:

Step-by-step explanation:

Algebraic expressions tend to have atleast one unknown variable in it. In order to solve the expression we need to assign a fixed value to that variable or isolate it if the expression is equal to another value. For example, in the following expression we have the variable x, if we give it a value of 5 we simply solve like a regular expression...

5x + 3

5(5) + 3

25 + 3

28

Therefore, if we swap the variable x for the value of 5 we would get a value of 28 in this algebraic expression.

7 0
2 years ago
7 % of 412 what is itttttt​
AnnyKZ [126]

Answer: 28.84

Step-by-step explanation:

7/100 = 0.07

0.07 * 412 = 28.84

6 0
3 years ago
Read 2 more answers
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