Basic Arithmetic
3 + 4 / 2
3 + 4 / 2
= 3 + 2
= 5
3 is what percent of 9?
3/9 = 1/3 = 33.3%
Solve the following:
m + 4 = 17
m = 13
Write the expression for the following statement:
"2 times a number, x, is greater than or equal to 7".
2x > 7
Giovanni makes beats for rap songs in order to make money. He earns $75 for every beat, b, created. Last week, he earned a total of $600 making beats. Which equation represents the above situation:
A.) 75 x 600 = b
B.) 75 x b = 600
C.) 75 = 600 x b
B.) 75 x b = 600
56 / (7 + 1)
56 / (7 + 1)
= 56 / 8
= 7
In 7 days, E'Mya spends a total of 15 hours practicing her singing. At what rate, in hours per day, does E'Mya rehearse (please round answer to nearest hundredth)?
Hours per day = 15 hours / 7 days
= 2.14
Will x = 3 make the following statement true?
2x + 6 = 10
Why or why not?
No. When x = 3 is plugged into the equation, 2x + 6 = 2(3) + 6 = 6 + 6 = 12.
Draw a graph that represents the inequality x > -5
Graph should include a number line where the point -5 on the number line has an open circle with an arrow moving to the right.
Janyla is stuck on determining a solution to the equation 14 + 2c = 44
Which value is the solution to Janyla's equation?
A.) 15
B.) 22
C.) 30
D.) 44
A
14 + 2(15) = 14 + 30 = 44
8027x21
168567
88 / (24-13) x 12
88 / (24-13) x 12
= 88 / 11 x 12
= 8 x 12 = 96
Tristen is biking in a race that is 60 miles long. He has completed 40% of the the race. How many miles has Tristen biked?
60 * .40 = 24 or
x / 60 = 40 / 100
2400 = 100x
x = 24 (Answer is 24%)
Which of the following equations have a solution of x = 7 (Hint: There is more than 1 answer)?
A.) 3x + 6 = 27
B.) 7x + 5 = 49
C.) 9x / 3 = 21
D.) 8x / 7 = 7
E.) 50 - 2x = 23
A and C
A.) 3x + 6 = 3(7) + 6 = 21 + 6 = 27
B.) 7x + 5 = 7(7) + 5 = 49 + 5 = 54
C.) 9x / 3 = 9(7) / 3 = 63 / 3 = 21
D.) 8x / 7 = 8(7) / 7 = 56 / 7 = 8
E.) 50 - 2(7) = 50 - 14 = 36
Which of the following can be substituted for x to make the inequality below true (Hint: There is more than 1 answer)?
10 < 6x - 2
A.) 2
B.) 3.5
C.) 5
D.) Any integer
E.) All numbers less than 2
F. ) All numbers greater than 2
B, C, F
If Ms.Whitlock is trying to organize her class of 20 students into rows for the class photo and each row has to have an equal number of students. What are four possible arrangements she can have?
She can have one row of 20 students, 2 rows of 10 students, 4 rows of 5 students, 5 rows of 4 students, 10 rows of 2 students, or 20 rows with one student.
Place parenthesis in the equation to make the following a true statement: 12 x 4 + 2 - 12 = 60
12 x (4 + 2) - 12 = 60
Terrianna runs for 6th grade class president. Each student votes only once and she wins 25% of the the student body votes. If Terrianna receives 50 votes, how many students voted altogether?
50 / x = 25 / 100
25x = 5000
x = 200 (Answer is 200 students)
What is the value of the expression below when t = 5.1?
80 - 3t x 4
** Round your answer to the nearest tenth.
80 - 3t x 4
= 80 - 3(5.1) x 4
= 80 - 61.2
= 18.8
Solve and graph the following inequality:
f/3 + 6 < 30
f/3 + 6 < 30
f/3 < 24
f < 72
Graph should be a number line that shows the point 72 having a closed circle with the arrow moving to the left.
DOUBLE OR NOTHING:
Emmanuel buys 10 books for b dollars and 6 magazines for m dollars each. Write an expression that represents the total amount, in dollars, he spent on books and magazines?
10b + 6m
75383 / 14
5384 with remainder of 7 or 5384.5
92 - (6 x 4) / 12 + 7
92 - (6 x 4) / 12 + 7
= 92 - 24 / 12 + 7
= 81 - 24 / 12 + 7
= 81 - 2 + 7
= 79 + 7 = 86
Victoria is riding in her Bugatti for 50 miles to reach her final destination. She has to drive 15 more miles before arriving. How much of the trip has she completed (Your answer needs to be a percent rounded to the nearest tenth)?
50 - 15 = 35 miles completed
35 / 50 = x / 100
50x = 3500
x = 70 (Answer is 70%)
Refer to the board.
Find the error in the following problem, correct it, and provide the correct answer.
Error: Calculating (45 - 10) / 20 as this does not equal 2
Correct It: (45 -10) / 20 = 1.5
Correct Answer: 1.5 + 35 - 3 = 36.5 = 3 = 33.5
Given the following set of numbers
{2,3,5,10,12,17,21}
Which of these numbers make the following statement true?
2x + 7 < 27
2,3, and 5
Jaelen feeds his pitbull twice a day. In the morning, he feeds his dog two cans of dog food. In the evening, he feeds his dog two and a half cans of dog food. Jaelen's dog eats 18 ounces of food a day. How many ounces of dog food are in each can?
c = ounces of dog food in one can
2c + 2.5c = 18
4.5c = 18
c = 4