Answer:
2600 AND 1700
Step-by-step explanation:
both accounts rep by A and B
a + b = 4300
0.02a + 0.13b = 273
a = 4300 - b
0.02(4300 - b) + 0.13b = 273
86 - 0.02b + 0.13b = 273
-0.11b = -187
b = 1700
a = 4300 - 1700
a = 2600
Given:
unit price per pound = 21.5 cents
bought 8 pound package
find: total amount paid for 8 pound package.
We need to convert cents into dollars to avoid confusion.
21.5 cents x 1 dollar / 100 cents = 21.5 dollar / 100 = 0.215 dollars
0.215 dollars * 8 pounds = 1.72 dollars.
my answer is B. $1.72
Answer:
A: x = 20
C: x = -9
Step-by-step explanation:
You can solve the inequality and compare that with the offered choices, or you can try the choices in the inequality to see if it is true. Either approach works, and they take about the same effort.
<u>Solving it</u>:
Unfold it ...
-17 ≤ x -7.5 ≤ 17
Add 7.5 ...
-9.5 ≤ x ≤ 24.5
The numbers 20 and -9 are in this range: answer choices A and C.
_____
<u>Trying the choices</u>:
A: |20 -7.5| = 12.5 ≤ 17 . . . . this works
B: |-10 -7.5| = 17.5 . . . doesn't work
C: |-9 -7.5| = 16.5 ≤ 17 . . . . .this works
D: |27-7.5| = 19.5 . . . doesn't work
The choices that work are answer choices A and C.
