Algebra 1 Final Review Part 1

Find the error in the problem below
19 - 2k = 3k - 1
     +3k   +3k
19 + 1k = -1
-19           -19
k = -20

• They should have divided by 1 for the last step
• They should add 19 instead of subtracting 19
• I can not find an error
• Instead of adding 3k they should subtract 3k

A scale drawing of a house shows 9cm ×10cm. If 6cm=12 ft, what are the actual dimensions?

• 9ft x 10ft
• 1ft x 2ft
• 12ft x 6ft
• 18ft x 20ft

The scale of a map says that 6 cm represents 15 km. What distance on the map represents an actual distance of 6 kilometers?

Which proportion represents the problem?

Convert 3.5 gallons into cups. (1gal = 16cups)

• 56 cups

• 0.21875 cups

• 19.5 cups

• 48 cups

If you check your measuring equipment and calibrate it to make sure it's properly zeroed, your results will be more...

• Accurate

• Reliable

• Precise

• Fair

If you measure to finer intervals eg: mm instead of cm then the results will be more...

• Accurate

• Reliable

• Precise

• Fair

Identify the coefficient in the expression.
6y + 7

• 6y
• 7
• 6
• 1

Identify the variable in the expression 5y+7?

• x

• 5y

• y

• 7