Sandy bought a soft drink for 3 dollars and 6 candy bars.bars. She spent a total of 21 dollars. How much did each candy bar cost?

Answers

Answer 1

Answer: Sandy spent $21 on a drink ($3) and 6 candy bars

$21 - $3 = $18

Sandy spent $21 on a drink ($3) and 6 candy bars ($18)

$18/ 6 candy bars = $3

Each candy bar cost $3

Answer 2

Answer: Well what you do is take $21-$3=your answer.

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there are 13 animals in a barn. some are ducks and some are pigs. there are 40 legs in all. how many of each animal are there?

Answers

Let X be chickens
Let Y be pigs,
then x+y=13
the animals have 2x+4y legs,
so 2x+4y=40
The system of the equations
[X+y=13
[2x+4y=40
Divide the second equation by 2
[x+y=13
[x+2y=20
subtract the first equation from the second one
y=20-13
y-7 pigs
substitute y=7 into the first equation
x+7=13
x=13-7
x=6 chickens

Describe another method to compare cost

Answers

3:1 because your comparing the 3 to the 1
You can get one bunny for every three dogs.

A salesperson at a furniture store earns a 3% commission on all sales. How much commission does the salesperson earn on a $1400 sale?

Answers

if the salesperson earns 3%, then that's 0.03*1400, which equals 42 dollars of commission

1400 X .03= 42

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In a class of 32 students the mean height of the 14 boys is 1.56 m
the mean height of the 32 students is 1.515 m
work out the mean height of the girls