1) Let's say that the number of $10 denominations is x, $20 is y, and $50 is z.
2) "The number of $10 checks is 5 less than twice the number of $20 checks" This means x = 2y-5.
3) "...the number of $50 checks is 3 less than the number of $20 checks." This means z = y-3.
4) "A traveler buys $1600 in traveler's checks" which means that ($10)x+($20)y+($50)z = $1600.
5) Use the first and second equations to plug into the third because they are both in terms of y: (10)(2y-5)+(20)y+(50)(y-3) = 1600
6) Distribute: (20y-50)+(20y)+(50y-150) = 1600.
7) Combine like terms: 20y+20y+50y-50-150=1600 => 90y-200 = 1600
8) Add 200 to both sides: 90y = 1800
9) Divide both sides by 90 to find y.
10) y = 20
Answer:
–12 < m < 4
Step-by-step explanation:
I did it on ed 2020
Inconsistant is the answer!
Answer:
so where are the 3 consecutive numbers?
Answer:
64°
Step-by-step explanation:
sin(x) = 17/19
take inverse sine of 17/19: = 63.475°
they want to the nearest whole degree, so it would be ≈ 64°