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2 years ago

The surface area of a solid is 10 square feet. The dimensions of a similar solid are

Mathematics

1 answer:

maxonik [38]2 years ago

6 0

Answer:

90 ft²

Step-by-step explanation:

Given the sides of similar figures in the ratio a : b, then

ratio of areas = a² : b²

Here ratio of sides = 1 : 3 , thus

ratio of areas = 1² : 3² = 1 : 9

That is the surface area of the new solid is 9 times the first

SA = 9 × 10 = 90 ft²

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Bridget, Brian & Caroline share some money in the ratio 4 : 9 : 4.

poizon [28]

Answer:

the answer is 54

Step-by-step explanation:

48 / 4 is 12, so then divide that by 2 so they split equally because theirs combined added to 48, so 6.

6 * 9 is 54

7 0

2 years ago

if 4 men and 1 dog can dig 12 holes in 4 days, and 2 men and 1 dog can dig 4 holes in 2 days, how long will it take 1 man and 2

madam [21]

The answer is 8 days

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2 years ago

−3x−6+(−1) equivalent

OLga [1]

Answer:

-3x-7

Step-by-step explanation:

Combine Like Terms:

=−3x+−6+−1

=(−3x)+(−6+−1)

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6 0

2 years ago

- A phone call costs $0,58 for the first 3 minutes and $0.15

Goshia [24]

.58 + .15x = 4.78
28 minutes

8 0

3 years ago

Katherine has 32 pop songs in 72 rock songs on her MP3 player that she will be organizing into paulista. Que want to por an eria

LUCKY_DIMON [66]

Answer: The greatest number of playlist Katherine can make =8

Each of playlist will have 4 pop songs and 9 rock songs.

Step-by-step explanation:

Given: The number of pop songs Katherine has= 32

The number of rock songs Katherine has= 72

If she want to make playlist such that in each playlist there is equal number of pop and rock songs, we need to find the GCF(greatest common factor) of 32 and 72.

We know that $32=2\times2\times2\times2\times2\\72=2\times2\times2\times3\times3$

We can see the GCF(32,72)= $2\times2\times2=8$

Hence, the greatest number of playlist Katherine can make =8

The number of pop songs= $\frac{32}{8}=4$

the number of rock songs= $\frac{72}{8}=9$

Each of playlist will have 4 pop songs and 9 rock songs.

5 0

2 years ago