CAASPP Math Practice Test (Gr11)

Question 1

Where x is 4 and y is -2.35, calculate 1.13x + 21.5y + 13.22.

Accepted Answer

—32.785

Answer

To calculate the expression, substitute x=4 and y=-2.35: 1.13(4) + 21.5(-2.35) + 13.22. This simplifies to 4.52 - 50.525 + 13.22. Performing the arithmetic operations yields -32.785.

Question 2

Ariel is comparing the costs of two different brands of paper towels, Brand A and Brand B. At $1.74 per roll, 
Brand B is the more affordable option. Brand A comes in 8-packs, whereas Brand B comes in 12-packs. 
The cost of a pack of Brand Bis is the same as the cost of a pack of Brand A. How much does Brand A cost
 each roll?

Accepted Answer

$2.61

Answer

First, calculate the total cost of a Brand B pack: 12 rolls * $1.74/roll = $20.88. Since a pack of Brand A costs the same, an 8-pack of Brand A also costs $20.88. To find the cost per roll for Brand A, divide the pack cost by the number of rolls: $20.88 / 8 rolls = $2.61 per roll.

Question 3

For $115, a combat veteran and a senior citizen each purchase the identical vacuum cleaner model. 
They're both going to use their coupons, which say, "Veterans enjoy 20% off all store purchases!" and 
"senior discount 550!" respectively. Who has the better bargain?

Accepted Answer

The senior citizen

Answer

The veteran's discount is 20% of $115, which is $23, making their final price $115 - $23 = $92. Assuming 'senior discount 550!' is a typo for '$55 off', the senior citizen pays $115 - $55 = $60. Since $60 is less than $92, the senior citizen receives the better bargain.

Question 4

3 lbs. of ground beef costs $11.52 at one grocery. ”34 per ounce of ground beef,” reads a mistake on a price tag. 
What is the percentage increase in the price of 3 lbs. ground beef if the buyer calculates his price based on the 
wrong tag instead of the true price? To the nearest hundredth of a percent, round up.

Accepted Answer

41.67%

Answer

First, convert 3 lbs to ounces (3 lbs * 16 oz/lb = 48 oz). The true price per ounce is $11.52 / 48 oz = $0.24/oz. The mistaken price is $0.34/oz. The percentage increase is calculated as ((Mistaken Price - True Price) / True Price) * 100%, which is (($0.34 - $0.24) / $0.24) * 100% = ($0.10 / $0.24) * 100% = 41.666...%, rounding up to 41.67%.

Question 5

Find the answer to x: 5 (x+3) = 3 (x—5)

Accepted Answer

x = -15

Answer

To solve the equation 5(x+3) = 3(x-5), first distribute the numbers on both sides: 5x + 15 = 3x - 15. Next, subtract 3x from both sides to get 2x + 15 = -15. Then, subtract 15 from both sides, resulting in 2x = -30. Finally, divide by 2 to find x = -15.

CAASPP - California Assessment of Student Performance and Progress Practice Test

CAASPP - California Assessment of Student Performance and Progress Practice Test

CAASPP Math Practice Test (Gr11)