Question 1(multiple choice worth 1 points)
(02.01 lc)
simplify (4.5)(5)(−2).
45
4.5
−4.5
−45
question 2(multiple choice worth 1 points)
(02.02 lc)
convert 9 over 16 to a decimal.
0.4225
0.5225
0.5625
0.7455
question 3(multiple choice worth 1 points)
(02.03 hc)
a seagull can dive 45 meters below the surface of the water to reach a fish. it dives 11% of the total depth every 1 second.
what is the depth of the seagull after 2 seconds?
–2.475 meters
–4.95 meters
–9.9 meters
–7.425 meters
question 4(multiple choice worth 1 points)
(02.01 hc)
kim is showing her steps to solve the expression −18.9 ÷ 1 over 4.
in which step did kim make an error?
step 1: −18.9 ÷ 1 over 4
step 2: −18.9 ⋅ 4
step 3: 75.6
step 1
step 2
step 3
there is no error.
question 5(multiple choice worth 1 points)
(02.01 mc)
hugh made a recipe that yields 8 and 1 over 2 cups. if each serving is 1 over 4 cup, which expression will hugh determine the number of servings his recipe will yield?
8 and 1 over 2 • 1 over 4
8 and 1 over 2 + 1 over 4
8 and 1 over 2 – 1 over 4
8 and 1 over 2 ÷ 1 over 4
question 6(multiple choice worth 1 points)
(02.02 lc)
use long division to determine the decimal equivalent of 7 over 9.
0 point 6 bar
0 point 7 bar
0 point 8 bar
0 point 9 bar
question 7(multiple choice worth 1 points)
(02.03 mc)
the temperature at a mountain base camp was −4 degrees celsius on saturday. sunday morning, the temperature was 2 degrees celsius lower than it was on saturday. by sunday evening, the temperature was 1 degree celsius lower than it was that morning. what was the temperature at the base camp sunday evening?
−9 degrees celsius
−8 degrees celsius
−7 degrees celsius
−5 degrees celsius
question 8(multiple choice worth 1 points)
(02.02 lc)
convert 7 over 8 to a decimal and tell whether it terminates or repeats.
7.8, a number that terminates
0.875, a number that terminates
7.8 with a repeating bar over 8., a number that repeats
0.875 with a repeating bar over 875., a number that repeats
question 9(multiple choice worth 1 points)
(02.01 lc)
simplify negative 2 over 3 ÷ negative 7 over 4.
negative 7 over 6
negative 8 over 21
8 over 21
7 over 6
question 10(multiple choice worth 1 points)
(02.02 mc)
the steps to convert 37 over 4 to a decimal are shown below:
division is shown with divisor 4, quotient 9.21, and dividend 37 labeled as step 1. the numbers below 37 in sequence are subtract 36 lebeled as step 2, 10 labeled as step 3, subtract 6 labeled as step 4, 4, subtract 4, and 0.
in what step is the first error?
step 1
step 2
step 3
step 4
question 11(multiple choice worth 1 points)
(02.03 mc)
simon earned $15.50 delivering newspapers on saturday. on sunday, he spent $6.95 when he purchased a movie ticket. he needed to borrow money from a friend to complete his purchase of a snack. how much money did simon pay for the snack if he owes his friend $5?
$13.55
$17.45
$20.50
$27.45
question 12(multiple choice worth 1 points)
(02.03 hc)
grant has 2 over 3 cup of ice cream in a bowl. he then removes two 1 over 6 cups of ice cream to share with his little brother. which of the following best explains the amount of ice cream left in grant's bowl?
2 over 6, because 2 over 3 minus 2 times 1 over 6 equals 2 over 3 minus 3 over 6
2 over 6, because 2 over 3 minus 2 times 1 over 6 equals 2 over 3 minus 2 over 6
1 over 6, because 2 over 3 minus 2 times 1 over 6 equals 2 over 3 minus 3 over 6
1 over 6, because 2 over 3 minus 2 times 1 over 6 equals 2 over 3 minus 2 over 6