Please help... I'm stuck on number 44 and I can't remember how to do it
2 answers:
Ok so basically, you are going to use the distributive property to solve this problem.
First, Use the distributive property.
So basically 3(x + 4) = 9 would be:
3x + 12 = 9 after the distributive property
Then you subtract 12 from both sides
3x = -3
Then you divide 3 by both sides
you will get x = -1
Hope this helps
Here is an image to make my work clearer
First, Use the distributive property.
So basically 3(x + 4) = 9 would be:
3x + 12 = 9 after the distributive property
Then you subtract 12 from both sides
3x = -3
Then you divide 3 by both sides
you will get x = -1
Hope this helps
Here is an image to make my work clearer
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Answer:
You have to buy more than 20 books to make Cool Cover Bookstore club a better deal.
Step-by-step explanation:
Given that:
Fee charged by Fun Reads Bookstore = $40
Charges per book = $5
Let x be the number of books.
A(x) = 5x+40
Fee charged by Cool Covers Bookstore = $100
Charges per book = $2
B(x) = 2x+100
For making Cool Cover Bookstores club a better deal,
B(x) > A(x)
2x+100 > 5x+40
2x-5x > 40-100
-3x > -60
Dividing both sides by -3
Hence,
You have to buy more than 20 books to make Cool Cover Bookstore club a better deal.
Answer:
The blank is 3
Step-by-step explanation:
1 - Give the blank a variable
x = our blank
2 - Write it out
3 - Get the denominators equal
4 - Simplify
5 - Solve for the numerators
30+7x = 51
-30 -30
7x = 21
x = 3