Let the tens be x.
Therefore the hundreds will be (26 - x).
Since they both total to 26. x + (26 - x) = 26
10*x + 100*(26 - x) = 1610
10x + 2600 - 100x = 1610
10x - 100x = 1610 - 2600
-90x = -990
x = -990/-90
x = 11.
So the 10s are x =11, the 100s are (26 -11) = 15
11 tens bills and 15 hundred bills.
Answer:
A: A number line going from negative 2 to positive 8 in increments of 1.Points are at 4 and 8.
Step-by-step explanation:
Hopefully this helps
Jake spent a total of 70 cents.
b = black-and-white = 8 cents
c = color = 15 cents
70 = 8b + 15c
he made a total of 7 copies
b + c = 7
system of equation:
70 = 8b + 15c
b + c = 7
--------------------------
b + c = 7
b + c (-c) = 7 (-c)
b = 7 - c
plug in 7 - c for b
70 = 8(7 - c) + 15c
Distribute the 8 to both 7 and - c (distributive property)
70 = 56 - 8c + 15c
Simplify like terms
70 = 56 - 8c + 15c
70 = 56 + 7c
Isolate the c, do the opposite of PEMDAS: Subtract 56 from both sides
70 (-56) = 56 (-56) + 7c
14 = 7c
divide 7 from both sides to isolate the c
14 = 7c
14/7 = 7c/7
c = 14/7
c = 2
c = 2
---------------
Now that you know what c equals (c = 2), plug in 2 for c in one of the equations.
b + c = 7
c = 2
<em>b + (2) = 7
</em><em />Find b by isolating it. subtract 2 from both sides
b + 2 = 7
b + 2 (-2) = 7 (-2)
b = 7 - 2
b = 5
Jake made 5 black-and-white copies, and 2 color copies
hope this helps
