SAT/ACT Practice

500 different light bulbs were tested in each trial. The bar graph above shows the number of defective light bulbs found in each trial. In Trial B, what percent of the light bulbs were defective?

• 0.70%

• 0.84%

• 1.40%

• 7.00%

Tags

CCSS.6.RP.A.3C

• 17.5

• 18

• 19

• 20

• 20.5

Tags

CCSS.6.SP.B.5C

• 2
• 4
• 9
• 10

Tags

CCSS.6.EE.B.7

• -4

• -2

• 2

• 4

Tags

CCSS.8.EE.A.2

Daphne always make sure to bring coupons to the store.  While shopping for cookies, she finds a box discounted by 12% from it normal price of $4.30. Daphne has a coupon that takes an additional 4% off the already discounted price.  After the sales tax of 6% on the final price, how much does Daphne spend on the box of cookies.

• $3.78
• $3.63
• $$3.85
• $3.59

Tags

CCSS.6.RP.A.3C

If x is divisible by 3 and y is divisible by 5, which of the following must be divisible by 15?
I.  xy          
II.  3x + 5y
III.  5x + 3y

• I only
• I and II only
• I and III only
• I, II, and III

Tags

CCSS.7.NS.A.2C

• 7

• 17

• 21

• 24

• 31

Tags

CCSS.HSF.IF.A.2

Lauren's World History teacher needs to select one of his 19 students to lead the class in song. Lauren's teacher decides that the song leader, who will be chosen at random, CANNOT be any of the 4 seniors in the class. Wht is the probability that Lauren, who is NOT a senior, will be chosen?

• 0

• 1/19

• 1/15

• 4/19

Tags

CCSS.7.SP.C.7B

Tags

CCSS.HSA.APR.D.6

The numbers 1 through 15 were each written on individual pieces of paper, 1 number per piece. Then the 15 pieces of paper were put in a jar. One piece of paper will be drawn from the jar at random. What is the probability of drawing a piece of paper with a number less than 9 written on it?

Tags

CCSS.7.SP.C.7B