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3 years ago

Can anyone help me with this expression -1(7 + 10r) + 3

Mathematics

1 answer:

mezya [45]3 years ago

6 0

Answer:

-2(2+5r)

Step-by-step explanation:

-(7+10r)+3

then you remove the parentheses

-7-10r+3

calculate the sum

-4-10r

factor the expression

-2(2+5r)

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3(2x + 5)= 4 (c-3) I know how to solve it but can someone explain it.

Nezavi [6.7K]

Answer:

3x×2c+1

Step-by-step explanation:

6x+15 =4c-12

$\frac{6x + 15}{4c - 12} = \frac{4c - 12}{4c - 12}$

$\frac{6x + 15}{4c - 12}$

$\frac{3x + 5}{2c - 4}$

$3x + 5 \div 2c - 4$

$3x \times 2c + 5 - 4$

$3x \times 2c + 1$

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2 years ago

2/23 yards= how many feet?

kykrilka [37]

A yard is three feet
If this is two-twenty thirds of a yard
that is 0.26 feet

Hope this helps :)

4 0

3 years ago

Simplify the expression 2(-2x+4-5-3)

uysha [10]

Answer:2 (-2x + 4 - 5 - 3)

2(-2x -4)

-4x - 8

4 0

4 years ago

Fred went to his local zoo that featured 6 whale exhibits. If the zoo features 15 exhibits in total, then what percent of the zo

lorasvet [3.4K]

Answer:40%

Step-by-step explanation:

Given

The zoo featured 6 whales exhibits

There are 15 exhibits in total

Percentage of Zoo's exhibits featuring whales

$\Rightarrow \dfrac{6}{15}\times 100=40\%$

7 0

3 years ago

Find the mean, μ, for the binomial distribution with n = 48 and p = 3/5. Round your answer to the nearest hundredth. A) μ = 29.7

qaws [65]

The mean of the binomial distribution is (d) μ = 28,8

<h3>How to determine the mean?</h3>

The given parameters of the binomial distribution are given as:

n = 48 and p = 3/5

The mean is then calculated using:

μ = np

This gives

μ = 48 * 3/5

Evaluate

μ = 28,8

Hence, the mean of the binomial distribution is (d) μ = 28,8