Computation
The ratio of boys to girls in a classroom is 7 to 11. If there are a total of 49 boys in the classroom, then how many boys and girls are there altogether?
77
a ♠ b = 3a + 2b. Find 3 ♠ 2
13
A cycle was bought for $1,225 and sold at a gain of $100. Find the Selling Price of the cycle.
$1325
2x+6=0
x=-3
What is the value of the y-coordinate of the solution to the system of equations x + 2y = 9 and x - y = 3?
y=2
The ratio of black bags to blue bags is 5 to 3. if there are a total of 10 black bags, then how many blue bags are there?
6
a*b=a+3b2 for 8*3
35
Sam bought 100 bars of chocolate. He sold then all at a rate of $6.20 each and made a profit of $50. At what rate did he buy them?
$5.70
2x-18=-3x+27
x=9
What is the solution of the system of equations
2x - 5y = 11 and -2x + 3y = -9?
y = -1, x = 3
On Monday, 3 students were late out of a class of 29 students. What percentage were on time?
90%
a*b = 3a+4b-2 for 4*5
30
Kylie buys an article for $ 10000 and pays 7% tax. He sells the same article for $ 13000 and charges 9% tax. Find the VAT paid by Kylie.
$ 1170
7x+42=-3x-28
x=-7
The equations 5x + 2y = 48 and 3x + 2y = 32 represent the money collected from school concert ticket sales during two class periods. If x represents the cost for each adult ticket and y represents the cost for each student ticket, what is the cost for each adult ticket?
What is x = $8
simplify this fraction: (3/4)/(7/10)
15/14
a*b=2a+b-ab for 3*4
-2
Karolina earns £29000 per year. The first £6000 is tax free but 20% tax must be paid on the rest.
How much tax does Karolina pay?
£4600
2x/3 +x/6=5
x=6
The equations 6x + 5y = 300 and 3x + 7y = 285 represent the money collected from selling gift baskets in a school fundraising event. If x represents the cost for each snack gift basket and y represents the cost for each chocolate gift basket, what is the cost for each chocolate gift basket?
What is y = 30
(17/20 + 2/5)/(7/4 - 1/2)
1
a*b = ab/5 for 6*10
12
The marked price of a water cooler is $ 4650. The shopkeeper offers an off-season discount of 18% on it. Find its selling price.
$ 3813
2(m+6)=48
m=18
What is the solution for x + y = 2 and 2x + 2y = 4?
What is All real numbers