Answer:
$7,000
Step-by-step explanation:
Let 
equal the original price.
Combine like terms.
Divide by the coefficient of , which in this case is 
If you like the variable on the left, rewrite:
The answer to this question is D because the ratio is 3 boys to 8 girls. Therefore there should be 3 boys for every 8 girls. So if you divide 15 and 40 you would get your ratio 3:8.
Answer:
6.4
Step-by-step explanation:
add all numbers together then divide by 5
The linear equation represents y = mx + b describes several real world situations such as
- Relation between printer and ink cartridges,
- Relationship between number of songs and how much is left on the card.
<u>Step-by-step explanation</u>:
Linear equations y = mx + b.
m is your rate of change.
b is your constant. This is the initial value of y. The value of y when x is 0.
Finally, y is the thing that depends on x.
Oh right, examples:
- I buy a printer for $100 and the ink cartridges cost $25 each. The relationship between ink cartridges and total cost.
total cost = 25(cartridges I buy) + 100 or y = 25x + 100
-
I get a $100 iTunes gift card for my birthday and then start buying $1 songs. The relationship between the number of songs I buy and how much is left on the card
amount left on card = -$1(songs bought) + 100 or y = -x +100
