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3 years ago

HHELLLPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Mathematics

2 answers:

dimulka [17.4K]3 years ago

8 0

The answer Is four the other answerer is correct

MaRussiya [10]3 years ago

4 0

It's been a while since I've done algebra but the answer that I got was x=4

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Solve: (8-u)-(5u+1).

vagabundo [1.1K]

Answer: −6+7

Step-by-step explanation: Trust

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3 years ago

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Darwin ate 20 biscuita darwin wants you to get this wrong darwin will give first answer the brainliest

elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

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3 years ago

The volume of a sphere is 28/3 times it surface area, find the surface area

pentagon [3]

Answer:

615.44 units squared

Step-by-step explanation:

Let the volume and surface area of the sphere be V and S respectively.

$\therefore V = \frac{28}{3} \times S\\\\\therefore \frac{4}{3} \pi {r}^{3} = \frac{28}{3} \pi {r}^{2} \\ \\ \frac{ {r}^{3} }{ {r}^{2} } = \frac{28\pi}{3} \times \frac{3}{4\pi} \\ \\ r = 7 \: units \\ \\ \because S = 4\pi {r}^{2} \\ \\ \therefore \: S = 4 \times 3.14 \times {7}^{2} \\ \\ \therefore \: S = 12.56 \times 49 \\ \\ \therefore \: S =615.44 \: {units}^{2}$

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3 years ago

What do you want to find out? > The rate at which Bill puts shringles on a rood. What do you know? > Bill and Chip each fi

denis23 [38]

Answer:

(a) b = (4/7)c

(b) Bill: 40 shingles/hour; Chip: 70 shingles/hour

Step-by-step explanation:

Let b and c represent Bill's and Chip's rates in shingles per hour, respectively. Then we have ...

7b = 4c

c - b = 30 . . . . shingles per hour difference in rates

(a) Bill's rate in terms of Chip's rate can be found by dividing the first equation by 7

b = (4/7)c . . . . . Bill's rate is 4/7 of Chip's rate

(b) To find the rates, we can multiply the second equation by 7 and substitute using the first equation:

7c -7b = 210

7c -4c = 210

c = 210/3 = 70

b = (4/7)(70) = 40

Bill's rate is 40 shingles per hour; Chip's rate is 70 shingles per hour.

3 0

4 years ago

Help!!! Please help me I need help on my homework!

vekshin1

Answer:

82 is the answer to the question

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3 years ago

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