The two equations for the set up are:
x+y=23 where x is the number of dimes and y is the number of nickles
10x+5y=185
Now you solve by elimination and substitution.
Multiply your first equation by -5 and add the two equations together
-5x-5y=-115
+10x+5y=185
-------------------
5x=70
x=14
Substitute that into your original equation:
14+y=23
y=9
So you have 14 dimes and 9 nickles.
Hope this helps
Answer:
The value is 8.
Step-by-step explanation:
ok so substitute the x=3, and work on the inside of parentheses
(15-4(3))+5
now multiply
(15-12)+5
now subtract
3+5
add
8
I hope this helps!!
Have a great day!!!
Answer:
<em>$83.69</em>
Step-by-step explanation:
Given the following
Initial Cost of the brunch = $72.80
Percentage tip = 15%
Tip paid = 15% of $72.60
Tip paid = 0.15 * 72.60
Tip paid = $10.89
Total cost of brunch = $72.80 + $10.89
Total cost of brunch = $83.69
<em>Hence the total cost of her brunch is $83.69</em>
Answer:
The original price is $45
Theres a discount of 30%
30% of 45 is found by multiplying both of the numbers:
30% x 45 = $13.5
The final price after the discount is $13.5
pls hit the thx button and mark me brainliest if this helped :)
Answer:
15y^2-45
Step-by-step explanation:
5y^2+10y^2-45 = 15y^2-45
