Answer:
8 dimes and 14 quarters.
Step-by-step explanation:
d and q are the number of dimes and quarters, respectively.
"22 coins, all dimes and quarters"
d+q = 22
d = 22-q
"total value is $4.30"
0.10d + 0.25q = 4.30
substitution
0.10(22-q) + 0.25q = 4.30
2.2 + 0.15q = 4.30
q = 14
d = 22-q = 8
8 dimes and 14 quarters.
Answer:
x = -62/7
Step-by-step explanation:
-7x+(-21)=41
-7x -21 =41
Add 21 to each side
-7x-21+21 = 41+21
-7x = 62
Divide by -7
-7x/-7 = 62/-7
x =- 62/7
Answer:
The value of the expression = 200
Step-by-step explanation:
The given expression is
Using the low of exponent
So, the expression =
<u>So, The value of the expression = 200</u>
Let me = the minutes we are searching for.
(-2.5)/11_1/4 = 1/m
Rewrite 11_1/4 as 45/4.
(-2 5)/(45/4) = 1/m
Cross-multiply to find m.
45/4 = -2.5m
Divide both sides by -2.5.
45/4 ÷ -2.5 = m
Use your calculator and good luck.