Answer:
<h2>$36.00</h2>
Step-by-step explanation:
$12.00 - the total cost of 4 of equally priced gloves
$12.00 : 4 = $3.00 - the cost of 1 glove
The cost per glove is increased by $1.00. Therefore new cost of 1 glove is
$3.00 + $1.00 = $4.00
The total cost of 9 of gloves at the new price:
9 × $4.00 = $36.00
Answer:
15 quarters
Step-by-step explanation:
15 quarters = $3.75
21 dimes = $2.10
15 + 21 = 36 coins
3.75 + 2.10 = 5.85
Answer:
$4650
Step-by-step explanation:
.....................
It is impossible to solve for 2 unknown variables in an equation. In order to solve this, you must think mentally.
What two numbers can you add to make 22?
A good example is 15 and 8.
Can 15 and 8 be divided into smaller numbers?
Yes.
15/3 = 5
8/2 = 4
^
Notice how I'm dividing by the coefficient? *3*c and *2*f
So C can be 5 and F can be 4.
3(5) + 2(4) = 22
15 + 8 = 22
22 = 22