system of equations
X +2y=14
x-y=2
x=6
y=4
(3.2 x 104) +(1.5 x 104)
4.7 x 104
(3x + 5 = 20)
=5
5x + 12 = 3x + 20
x=4
A burger and fries cost $9. Two burgers and fries $14. Find the cost of each item
Burger=$5 Fries=$4
(9.2 x 106) - (4.7 x 106)
4.5 x 106
9x - 4x + 7 = 32
x=5
Plumber Tim charges $60upfront plus $45 per hour. Plumber Sam charges $80 upfront plus $40 per hour. For how many hours h of work will they charge the same amount?
h = 4 hours
2x +y =11
x+y=7
x=4
y=3
A stadium holds 4.2 x 104 people and 1.8 x 104 more arrive. How many people are there now
6.0 x 104
Sarah has $50 and saves $15 each week. How many weeks w will it take her to reach $200?
w=10 weeks
Tree A is 12 inches tall and grows 4 inches per year. Tree B is 18 inches tall and grows 2 inches per year. In how many years y will they be the same height?
y=3 years
2x + 3y=18
x+y=7
x=3
y=4
A phone company had 8.7 x 107 users and lost 2.5 x 107 how many users remain
6.2 x 10 7
Tickets to a movie cost $9 each plus a one-time $4 processing fee. If total spending is $49, how many tickets t were bought?
t = 5 tickets
9n - 15 = 5n + 17
n = 8
A concert sold regular tickets for $12 and VIP tickets for $20. They sold 25 tickets and made $380. How many of each ticket were sold
15 reg
10 vip
1.3 x 109 + 2.4 x 109
3.7 x 109
5(x + 2) - 3 = 22
x=3
8w + 3 = 10w - 7
w = 5