Problem 1 :
A hybrid car gets about 60 miles per gallon of gas in the city and about 51 miles per gallon on the highway. During one week, the hybrid uses 12 gallons of gas and travels 675 miles. How much gas was used on the highway?
A) 4 gallons B) 5 gallons C) 7 gallons D) 8 gallons
Problem 2 :
A popcorn manufacturer’s ideal weight for a bag of microwave popcorn is 3.5 ounces, with a tolerance of 0.25 ounce. What is the range of acceptable weights w (in ounces) of a bag of popcorn?
A) w ≥ 3.75 B) w ≤ 3.25
C) -0.25 ≤ w ≤ 0.25 D) 3.25 ≤ w ≤ 3.75
Problem 3 :
Oxygen exists as a liquid between -369°F and -297°F, inclusive. Which compound inequality gives the range of temperatures T for liquid oxygen?
A) -369 ≤ T ≤ -297 B) -369 < T < -297
C) -297 ≤ T ≤ -369 D) -297 < T < -369
Problem 4 :
A football kicker scores 1 point for each extra point and 3 points for each field goal. One season, a kicker made 34 extra points and scored a total of 112 points. How many field goals did the kicker make?
A) 13 B) 26 C) 48 D) 78
Problem 5 :
A video store rents movies for $2.95 each. Recently, the store added a special allowing an unlimited number of rentals for $15.95 per month. How many movies must you rent in a month in order to save money by using the special?
A) 5 or less B) exactly 6 C) 6 or more D) 13 or more
Problem 6 :
You are draining a swimming pool. The table shows the depth of the water at different times. How long will it take the pool to empty?
A) 4.8 hours B) 6.7 hours C) 8 hours D) 24 hours
1) The number of gallons used in highway is 7 gallons.
2) The range can be fixed as -0.25 ≤ w ≤ 0.25.
3) So, the answer is -369 ≤ T ≤ -297.
4) x = 26
5) x ≤ 5.40
6) So, 5 or less number movies can be rented.
7) will take 8 hours to make the tank as empty.
Problem 1 :
Katie has $50 in a savings account at the beginning of the summer. She wants to have at least $20 in the account by the end of the summer. She withdraws $2 each week for food, clothes, and movie tickets. Write an inequality that expresses Katie’s situation and display it on the graph below. For how many weeks can Katie withdraw money?
Problem 2 :
Skate Land charges a $50 flat fee for a birthday party rental and $4 for each person. Joann has no more than $100 to budget for her party. Write an inequality that models her situation and display it on the graph below. How many people can attend Joann's party.
Problem 3 :
Sarah is selling bracelets and earrings to make money for summer vacation. The bracelets cost $2 and the earrings cost $3. She needs to make at least $60. Sarah knows she will sell more than 10 bracelets. Write inequalities to represent the income from jewelry sold and number of bracelets sold. Find two possible solutions.
1) x ≤ 15 weeks
2) x ≤ 12.5
3) x = 12 and y = 12, x = 15 and y = 10
Write the sentence as an equation or an inequality. Let x represent the number.
Problem 1 :
The sum of 20 and a number is 30.
Problem 2 :
A number increased by 10 is greater than or equal to 44.
Problem 3 :
18 decreased by a number is 6.
Problem 4 :
35 is less than the difference of 21 and a number.
Problem 5 :
The product of 13 and a number is greater than 60.
Problem 6 :
7 times a number is 56.
Problem 7 :
A number divided by 22 is less than 3.
Problem 8 :
The quotient of 35 and a number is 7.
Problem 9 :
A number x divided by 9 is less than 17.
Problem 10 :
The product of 10 and a number x is 50.
Problem 11 :
A number y plus 10 is greater than or equal to 57.
Problem 12 :
A number y minus 6 is 15.
1) x + 20 = 30 2) x + 10 ≥ 44. 3) x - 18 = 6 4) 35 < x - 21 5) 13x > 60 6) 7x = 56 |
7) x/22 < 3 8) 35/x = 7 9) x/9 < 17 10) 10x = 50 11) y+10 ≥ 57 12) y - 6 = 15 |
May 21, 24 08:51 PM
May 21, 24 08:51 AM
May 20, 24 10:45 PM