One
Jamie has 6 quarters and some dimes in his pocket. The total value of the coins is $4.50. How many dimes does he have in his pocket?
30 dimes
0.4(2a-0.3b)
0.8a-0.12b
Solve:
x-1.4=0.6
x=2
Massimo has $90 in the bank. Every time he rides the bus he spends $2.50. Write and solve an equation that Massimo can use to see how many times he can ride the bus.
2.50b=90 ; 36 times
Lani opened a savings account with $450. She saves $225 per month. Write an equation to show how much money Lani will have in her account after m months.
y=450+225m
Timani bought a video game console and some games for $350. The video game console cost $200. Each game cost $25. How many games did Timani purchase?
6 games
Allison bought some shirts for clothing store for $15 each. She received $50 off her entire purchase and spent a total of $400. How many shirts did Allison purchase for her store?
30 shirts
Solve:
y/3=12
y=36
Jan has 6 more than half the number of pairs of shoes that Mercedes has. Write an expression for this.
m/2+6
Kimmy earns a $200 commission on all sales plusea base salary of $30,000. Her total income last year was $80,000. Write an equation to calculate the number of Kimmy's sales.
30,000+200x=80,000
Kelly has 4 dimes and some nickels. The total value of her coins is $2.25. Write an equation for this.
4*0.10+0.05n=$2.25
Solve for x.
0.25x=10
x=40
Oswaldo earns a salary of $2,500 per month plus an 8% commission on all of his sales. He wants to earn $5,400 next month. Write an equation that shows what his total sales s must be in order for Oswaldo to reach his goal.
2500+0.08s=5400
Wallace has a $50 bill. Pizza pies cost $12.25 each. If p represents the number of pizzas he buys, write an expression for the change he receives.
50-12.25p
Rashida owns a bike rental company. She charges an initial fee of $10 for each rental and an hourly rate of $4. Write an equation to show what she charges for a bike rental that lasts x hours.
y=10+4x
Juma earns $12.50 for each newspaper subscription he sells. He also earns a $50 base salary each week. If he wants to earn $400 next week, how many newspaper subscriptions does he need to sell? Write an equation and solve.
50+12.5n=400
n=28
What is the solution to the equation below?
-2/3x=20
x=-30
Morgan used the equation below to find the number on mini netbooks she could purchase to fit her budget. How many mini netbooks can Morgan buy?
87.5x=350
x=4
Guillermo bought some reams of paper for $5 each and a $200 printer. He spent a total of $450. Write and solve an equation to find the number of reams of paper Guillermo purchased.
200+5x=450
x=50
The chess club has 50 members. They want to raise $680 for trip to a competition. The school will give $130. How much must each member pay?
$11
Consuela earns a salary of $40,000 per year plus a commission of $1,000 for each car she sells. Write and solve an equation that shows the number of cars Consuela must sell in order to make $60,000 in one year.
40000+1000c=60000
c=20
Shilpa earned 100 points in the first round of a game. She earned 20 points in each of the following rounds of the game. She ended the game with 400 points. Write and solve an equation to find the number of rounds Shilpa played.
100+20p=400
p=15
Benjamin rides the train to work. He spends $2.75 per ride. His monthly budget for riding the train is $80, write an equation that shows the number of times, n, Benjamin can ride the train each month.
2.75n=80
Paco solved the equation -3x-5=1. His work is shown below.
Step 1: -3x-5=1
Step 2: -3x=6
Step 3: x=2
Where did Paco make an error in his calculation? Explain.
In step 3. He did not put negative in his answer when he divided a positive by a negative.
Alexa started a race with a 50-meter head start. She ran at a rate of 6.25 meters per second. After how many seconds was Alexa 200 meters past the starting line?
24 seconds