QR Challenge: Equations with Rational Numbers
| Question | Answer |
| j-8=-2 | j=6
|
-14+x=-24 | x=-10
| 3x=2/3 | x=2/9
| j-9.1=-4.2 | j=4.9
| r/3+4=2 | r=-6
| -24=5d-9 | d=-3
| 2a-5/6=2/3 | a=3/4
| 0.5x+8.7=12.35 | x=7.3
| 12/20 m+1/5 m=8/9 | m=10/9
| 291.45+2.47=12.2c+5.3c | c=16.8
| 4-2(v-6)=-8 | v=12
| 2(x+4)+6=22 | x=4
| 32-5v=3v+8 | v=3
| Mia and Emily are comparing cell phone plans. Mia’s plan charges $26.50 a month plus $0.15 per 1GB of data. Emily’s cell phone plan charges $14.50 a month and $0.25 for 1GB of data. How many GB of data do Mia and Emily need to use to get charge the same? | They need to each use 120 GB to have the same charge.
| Write an expression equivalent to 5(x+1)-2 | 5x+3 |
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