STAAR Proportion Problems

Which is NOT equivalent to 3:5?

• 15:25

• 9:15

• 21:28

• 30:50

Write the ratio as a fraction in simplest form.

12 to 15

What is a proportion?

• When two ratios can be simplified

• When two ratios are equivalent and show the same value

• When two ratios have the exact same numbers

• When two ratios can be multiplied by 2

Elijah earn $200 for 8 hours of work. What is the unit rate (in dollars per hour)?

• $50 per hour

• $12 per hour

• $192 per hour

• $25 per hour

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The PTA sells school supply packs each year. If 60% of the 400 students purchase from the PTA, then how many school supply packs do they sell?

• 180

• 210

• 240

• 280

Jonathan's preschool class has 9 girls and 6 boys. Which proportion can be used to determine the percent, p, of boys in the class?

A survey shows that 85% of students carry a backpack to school. If there are 320 students in the school, then how many students carry a backpack?

• 302

• 220

• 190

• 272

A flock of sheep has 182 white sheep and 98 spotted sheep. Which proportion can be used to determine p, the percent of the flock that has spots?