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3 years ago

Twenty nine cans were arranged on 4 shelves as evenly as possible. How many shelves had exactly 7 cans

Mathematics

2 answers:

valentina_108 [34]3 years ago

7 0

3 shelves because 29 divided by 7 is 4.14 so there would be 3 shelves with 7 cans and 1 shelf with 8 cans.

Sonja [21]3 years ago

6 0

Four shelves were used. Three shelves had exactly 7 cars. The fourth shelf contained had 8.

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90(.4) = 36

Leila payed $36

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Jay wants to make a box, with no lid (or top), out of a 10" x 6" rectangular piece of cardboard. If Jay cuts squares with dimens

LiRa [457]

Answer:

a. $V(x)=x(10-2x)(6-2x)$

b. $S(x)=4(15-x^2)$

Step-by-step explanation:

Dimensions of rectangular piece of cardboard= $10\times 6$

According to question

Length of box,l=10-2x

Breadth of box,b=6-2x

Height of box,h=x

Volume of box= $l\times b\times h$

Substitute the values in the formula

Volume of box= $x(10-2x)(6-2x)$

$V(x)=x(10-2x)(6-2x)$

b.Surface area of box= $2(b+l)h+lb$

Because the box has no lid

Substitute the values in the formula

Surface area of box= $2(10-2x+6-2x)x+(10-2x)(6-2x)$

Surface area of box= $2(16-4x)x+60-20x-12x+4x^2$

Surface area of box= $32x-8x^2+60-32x+4x^2$

Surface area of box= $60-4x^2=4(15-x^2)$

Surface area of box, S(x)= $4(15-x^2)$

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3 years ago

a minor league baseball team plays 114 games in a season. if the team won 14 more than three times as many games as they lost, h

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Kim and Kate sell gym memberships. Kim earned $50 her first day of work and $75 each day after that. Kate earned $35 her first d

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For Kate, start at 35 and add 75 for each day after the first day.

Part B

How much will each have earned after 4 days? Drag numbers to complete the sentence. Numbers may be used once, more than once, or not at all.

Kim will have earned $ 275 and Kate will have earned 260 after 4 days.

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3 years ago