Answer:
She has 28 pennies
Step-by-step explanation:
Janae has 280 dimes in her piggy bank she has 10 times as many pennies .
If she has 280 dimes in piggy bank
And has 10 times as many pennies
Let dimes= x
Let pennies= y
X= 10y
But x= 280
280= 10y
280/10 = y
28 = y
She has 28 pennies
When ever you combine different elements the chemical properties change because elements are different , unless you combine the exact same elements.
25% of $270 is $67.50
10% of $270 is $27.0
27.0
+67.50
is $94.50
$270 - $94.50 is
$175.50 (Final Answer.) [I hope this helped you!]