Percents
what is 50% of 450?
225
What is the constant? Q1
3/2
A bus tire loses 6.5 pounds of air pressure each day. Which of the following represents the change in the air pressure in the tire after 9 days?
(-6.5)(-9) = 58.5
(-6.5)(-9) = -58.5
6.5 x 9 = 58.5
-6.5 x 9 = -58.5
D
A scuba diver at sea level has to dive to an elevation of -200.2 feet to study sea life. She paces his descent by diving deeper in 5 equal intervals. How much does the divers' elevation change per interval?
-20.02
gate question
8, c
Martha Measures the length of a table as 130 cm. But she found that the exact measure is 100 cm.
What is the percent error?
30
The constant of proportionality is the equation is 5y=10x is 12
The depth of the snow during a snowstorm after 3 hours is 12 cm. The depth of the snow is 4cm per hour.
**** THE other two ***
no
yes
no
no
-11 + 11 = 0 is showing which of the following?
Multiplicative inverse of -11 is 11
Additive inverse of -11 is 11
Multiplicative identity of -11x(-11)=0
Additive identity of -11+11x(-11)=0
B
A group of friends ordered hamburgers (h) and pizza (p) and then spent $13.00 on soft drinks. A hamburger and a pizza each cost $4.90. Which of the following expressions can be used to find the total amount they spent? Select all that apply
13.00 - 4.90h - 4.90p
13.00 + 4.90(h+p)
13.00 + 4.90h + 4.90p
13.00 - 4.90(h+p)
C, D
question 21
26
Mark Measures the length of a table as 156.6cm but he found that the exact emasure is 145cm Whats the percent Error
8%
C
4. Which of the following results in non-terminating decimals? Select ALL that apply.
114/7
144/12
233/18
125/50
a,c
Four friends go on a road trip. Bobby drove ½ of the trip and Jackie drove ¼ the trip. Susan and Sharon divided the rest of the driving equally. If the entire trip was 168 miles, how many miles did Sharon drive?
21
cube surface area
534
Marissa deposits $1,000 in her account at a rate of 3% per year as interest for 2 year.
What is the interest amount?
60
questions 5a-c
(1,3)
2,10
0,0
Simplify 8/5 (-5x +12.5 +7.5x) -17
4x+3
Jessica has more than $960 in her bank account. She wants to give her sister a computer worth $540. If she withdraws $60 weekly for her expenses, what is the maximum number of withdrawals she can make to ensure there is enough money in her account to buy the computer?
7
A warehouse has 1,750 music systems. Edward chooses a random sample of 35 music systems and finds that 4 are defective. The number of music systems which are likely to be defective in the warehouse is.
200
3. On a test 28% of the students scored above average, 54% of the students scored average and the rest of the students scored below average. If 300 students took the assessment how many students scored below average?
54
what is the equation represented by the relationship below.
** scoops / dollars
y=7/4x
Thomas earns $50 per week and $3 for each sale he makes. He wants to earn more than $100 during the Christmas week. Select Yes if the following statements are correct about the situation.
The number of sales Thomas should make to earn more than $100 can be given by 50+3x>100
The number of sales Thomas should make to earn more than $100 can be given by 50+3x<100
Thomas should make less than 17 sales to earn more than $100.
Thomas should make more than 16 sales to earn more than $100.
The number of sales Thomas should make to earn more than $100 can be given by 50+3x>100
Thomas should make more than 16 sales to earn more than $100.
Justine sells wooden toys. three tenths of the toys are painted red and one fourth of the toys are painted yellow. Half of the remaining toys are painted blue and the other half are painted black. If 300 toys are red how many blue toys are there? How many total toys and how many yellow toys
blue: 225
yellow:250
total 1000
question 28
1/5 and 4/25