Answer:
3 dimes and 10 quarters
Step-by-step explanation:
If you add 7 dimes, then the number of dimes and quarters is the same, and the total increases to $3.50. A dime and a quarter have a value together of $0.35. Since there are equal numbers, the value $3.50 must be made up of some quantity of groups with a value of $0.35. That number of groups must be ...
... $3.50/$0.35 = 10
Thus, there are 10 quarters and 10-7 = 3 dimes.
_____
<em>Using an equation</em>
Let q represent the number of quarters. Then the amount Bess has is ...
... 0.10(q -7) +0.25q = 2.80
... 0.35q - 0.70 = 2.80
... 0.35q = 3.50 . . . . . add 0.70 . . . . . . . this should look familiar
... q = 3.50/0.35 = 10
Answer:
Step-by-step explanation:
Nothing further can be done with this topic. Please check the expression entered or try another topic.
A, B, C, ZBAC=90°
AB=4.2mm
CA=1.5mm,
DP
mm
BC
hope this helps
Answer:
3x<u>></u><u>=</u><u> </u><u>21</u>
Step-by-step explanation:
Happy 2 Help. Hope you get a good grade lol
Answer:
I don't know let me know what it is plez
sorry I can't be help now
The gcf of 8xy and 14x is 2x
