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3 years ago

Oringinal price $30.50 markdown 30%

Mathematics

2 answers:

atroni [7]3 years ago

8 0

Answer:

тнє мαяк∂σωи ρяι¢є ιѕ $21.35

Step-by-step explanation:

вє¢αυѕє 30% σf $30.50 ιѕ $9.15

ѕσ тнєи υ ѕυвтяα¢т ιт: $30.50-$9.15=$21.35

нσρє ι ¢συℓ∂ нєℓρ уσυ συт!!!!!!

Veseljchak [2.6K]3 years ago

4 0

Answer:

Step-by-step explanation:

Divide 30.50 by 0.3 which bring you to 9.15.

Now subtract 9.15 by 30.50 which is 21.35.

Your total would be $21.35

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4 years ago

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Adam is building birdhouses that requires 1/2-ft-long boards. How many pieces that are exactly 1/2 ft long can be made from a bo

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Answer:

Step-by-step explanation:

Adam is building birdhouses that requires $\frac{1}{2}$ i.e 0.5 feet long boards.

Now, he has an $8\dfrac{1}{4}$ i.e. 8.25 feet longboard and wants to cut each 0.5 feet longboards.

We have to calculate the number of pieces of exactly 0.5 feet length that can be made from this 8.25 feet longboard.

Now, $\frac{8.25}{0.5}= 16.5$

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3 years ago

A package of 4 mechanical pencils comes with 2 free erasers and if you get a total of 12 eraser how many packages of pencils did

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3 years ago

Jessica gets her favorite shade of purple paint by mixing 1/3

strojnjashka [21]

Answer:

8 cups of blue and 12 cups of red

Step-by-step explanation:

Combine 1/3 c of blue + 1/2 c of red = 5/6 c of purple.

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3 years ago

A group of students calculated their average score at a spelling bee. They realized that if one of them scored 9 more points, th

alukav5142 [94]

Answer: There are 4 students in the group.

Step-by-step explanation:

Let the number of students in the group be n

If one of them scored 9 more points , their average score would be 81 points.

So, our equation (1) will be

$\frac{\sum x+9}{n}=81\\\\\sum x+9=81n$

Similarly,

If one of them scored 3 points less, their average score would be 78 points.

So, our equation (2) will be

$\frac{\sum x-3}{n}=78\\\\\sum x-3=78n$

So, from equation (1) and (2) we get:

$81n-9=\sum x=78n+3\\\\81n-9=78n+3\\\\81n-78n=3+9\\\\3n=12\\\\n=\frac{12}{3}\\\\n=4$

Hence, there are 4 students in the group.

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4 years ago