Operations w/ Integers
–12 + (–14)
-26
What is the additive inverse of - 1/4
1/4
−1/3 + 2 7/8 =
2 13/24
A raindrop falls at a rate of 450 mile in 120 hour.
At this rate, how far will the raindrop travel in
1 hour?
1.6 miles in 1 hour
Last year, a total of 450 people attended the fall concert. This year, 720 people attend the fall concert. What is the percent of increase in attendance?
60 %
Where can I find missing work?
google class room
–34 – (–16)
-18
Write the fraction as a decimal. Determine if the decimal is a terminating decimal.
4/9
.4 repeating non terminating
. –3.65 – (–4.2)
.55
A car travels 26 miles on 1 gallon of gas. Jorge drives 130 miles and uses 5 gallons of gas.
Is this relationship proportional. Why?
yes
Michelle purchases a tablet that costs $85. The sales-tax rate in her city is 7 1/2%. What is the total cost of the tablet?
91.38
What is the online portion of our test called?
Mcgraw hill- Reveal
A scuba diver descends below the surface of a lake at a rate of 12 feet per minute. What is the depth of the diver after 4 minutes?
-48
Evaluate each expression if
𝒂=𝟓/𝟔, 𝒃=−𝟑/𝟒, c = 0.4, and 𝒅=𝟏/𝟐
𝑏/𝑐+𝑎−𝑑
-1 13/24
5/7 divided by 3/4
20/21
Timberlee buys 4 shirts for $31 and Riley buys 7
shirts for $54.25. What is the constant of
proportionality for cost per shirt?
7.75
A toy store purchases wagons from a
wholesaler for $35.50. The store plans to
mark up the wagons 40%. Find the selling
price of the wagons.
49.70
When are quiz corrections due?
week from passing back of quiz
The number of students attending Martin Middle School decreased by 80 over a 10-year period. What integer represents the average yearly change in enrollment
-8
Evaluate each expression if
𝒂=𝟓/𝟔, 𝒃=−𝟑/𝟒, c = 0.4, and 𝒅=𝟏/𝟐
a + b + c + d
59/60
2/ 9 (−5/7)
-10/63
On a graph, what are the two things that determine if a graph is proportional
start at origin/ straight line
Jarwan deposited $575 into a savings account. The account pays 2% simple interest on an annual basis. If he does not add or withdraw money from the account, how much interest will he earn after 10 months? Round to the nearest cent.
9.58
How much is late work worth?
half credit
Solve:
9(–5)(–2) – (–16)
106
Write the fraction as a decimal. Determine if the decimal is a terminating decimal.
2/5
.4 termating
Rhonda earned $32.50 mowing lawns and $13.25 babysitting. Find the total amount she earned and describe a situation in which Rhonda would end the week with zero dollars. (Example 2)
$45.75; Sample answer: Rhonda buys a new dress for a special occasion for $45.75.
Brayden bought a helium tank for $24. It will blow up 30 balloons. Write an equation relating the total cost y to the number of balloons x
y = .8x
A soccer shop is having a holiday sale. All jerseys are 45% off the original price of $79. An early-bird special gives an additional 15% off the sale price. What is the final price of a jersey if all the discounts are applied? Round to the nearest cent.
36.93
How much are calculator if you lose it?
20