WK6 Test Template



|NAME: | |B99 |

Instructions: In order to complete your assignment in an organized and efficient manner, please use this template to type your work and answers. Save this template to your computer, complete the problems (showing all work without using a calculator), and post as an attachment to your forum.

REMEMBER: NO WORK = NO CREDIT

|PROBLEMS (4 points each) |TYPE YOUR SOLUTIONS HERE |

|#1 |Set the first ratio equal to the second one: |

| |3/5.37 = 8/14.32 |

|Write a proportion that is equivalent to the statement: If 3 | |

|gallons of gasoline cost $5.37 then 8 gallons will cost $14.32.| |

|#2 |72 minutes divided by 3 cars |

| |= 24 minutes per car |

|Garrett washes 3 cars in 72 minutes. How many minutes does it | |

|take Garrett to wash one car? | |

|#3 |9 nickels = 45 cents |

| |3 quarters = 75 cents |

|Write the ratio of 9 nickels to 3 quarters in simplest form. |45 to 75 |

| |Divide by 5: |

| |9 to 15 |

| |Divide by 3: |

| |3 to 5 |

|#4 |Divide the top and bottom of the second fraction by 2: |

| |4/13 |

|Determine whether the pair of fractions is proportional: |That is the same as the first one, so YES, they are proportional. |

|[pic] | |

|#5 |3/8 = 6/x |

| |Cross multiply: |

|On the blueprint of Lauren's new office building, the scale is |3x = 48 |

|3 inches equals 8 feet. What will be the actual length of |Divide by 3: |

|Lauren's office if it measures 6 inches long on the blueprint? |X = 16 feet |

|#6 |Divide: |

| |1.2/5 = 0.24 |

|Are these two rates of rainfall equivalent? |2.1/8 = 0.2625 |

| |NO, not the same |

|1.2 inches of rain in 5 hours | |

|and | |

|2.1 inches of rain in 8 hours | |

|#7 |23.76 divided by 0.048 |

| |= $495 |

|A state sales tax rate is 4.8%. If the tax on a purchase was | |

|$23.76, what was the price of the purchase? | |

|#8 |Take the value and subtract off 22%: |

| |16000 – 0.22*16000 |

|A new car depreciates an average of 22% in its first year of |= $12480 |

|use. If the car was worth $16,000 when it was new, what will | |

|the car be worth after 1 year? | |

|#9 |Rate = interest/loan |

| |= 800/20000 |

|Ms. Jefferson has been given a loan of $20,000 for 1 year. If |= 0.04 |

|the interest charged is $800, what is the interest rate on the |Multiply by 100 to get the percent |

|loan? |= 4% |

|#10 |= 58/100 |

| |Divide the top and bottom by 2: |

|Write 58% as a fraction or a mixed number. |= 29/50 |

|#11 |40% = 0.4 |

| |260 divided by 0.4 |

|260 is 40% of what number? |= 650 |

|#12 |21% = 0.21 |

| |Multiply by 400: |

|A chemist has 400 milliliters of solution that is 21% acid. How|400*0.21 |

|many milliliters of acid are in the solution? |= 84 ml |

|#13 |Multiply 30% and 200: |

| |30%*200 |

|What is 30% of 200? |= 0.3*200 |

| |= 60 |

|#14 |0.11x = 77 |

| |Divide by 0.11: |

|11% of what number is 77? |X = 77/0.11 |

| |= 700 |

|#15 |Convert it to a decimal: |

| |3/8 = 0.375 |

|Write [pic] as a percent. |Multiply by 100: |

| |37.5% |

|#16 |Divide by 100 to convert to decimal: |

| |0.3 |

|Write 30% as a fraction. |= 3/10 |

|#17 |Rate = increase/old |

| |= (13000-10000)/10000 |

|The electricity costs of a business increased from $10,000 one |= 3000/10000 |

|year to $13,000 the next. To the nearest whole percent, what |Cancel out 3 zeros |

|was the rate of increase? |= 3/10 |

| |= 0.3 |

| |= 30% |

|#18 |The angles in a triangle add to 180. |

| |Solve for the last angle: |

|Label the triangle as equilateral, isosceles, or scalene. |180-60-60 |

| |= 60 |

|[pic] |All the angles are the same, so: |

| |It is equilateral. |

|#19 |Remember that 1 gallon = 4 quarts |

| |Borrow 1 gallon from the first quantity: |

|Subtract. |7 gal 5 qt – 3 gal 2 qt |

|8 gallons 1 quart |= 4 gal 3 quart |

|- 3 gallons 2 quarts | |

|#20 |Complements add up to 90: |

| |90 – 60 |

|m∠B = 60°. Find the complement of ∠B. |= 30 degrees |

|#21 |This extends infinitely in each direction (because there are arrows at the end), therefore it is a|

| |line (unless you are only considering the part strictly between A and B, but I don’t think that’s |

|Is the object a line or a line segment? Why? |the case). |

| | |

|[pic] | |

|#22 |Pythagorean Theorem: |

| |a^2 + b^2 = c^2 |

|Find the missing length of the right triangle. |20^2 + 48^2 = c^2 |

|[pic] |400 + 2304 = c^2 |

| |C^2 = 2704 |

| |Square root: |

| |C = 52 |

|#23 |Sqrt(16) = 4 |

| |Sqrt(25) = 5 |

|What two whole numbers is [pic] between? |So it’s between 4 and 5. |

|#24 |1 gallon = 3.78541178 liters |

| |Multiply by 35: |

|Complete the statement. |= 132.4894123 liters |

| | |

|35 gallons = _____ L | |

|#25 |Between A and B is a line segment, since it does not extend infinitely in each direction. |

| | |

|Is the object a line or a line segment? Why? | |

|[pic] | |

Finished? I encourage you to go back and check each answer. Did you show all your work? Did you label every answer?

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download