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3 years ago

Can someone please help me with these two questions? I would be really grateful...

Mathematics

1 answer:

Roman55 [17]3 years ago

6 0

Answer:

1. County B

2. (I'm going to keep working on an answer for this one).

Step-by-step explanation:

A. 25 ppl × 100 sq miles = 2500

100 ppl × 40 sq miles (25 kilometers square) = 4000

County B

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Help! I will mark you the brainest !! ☺️☺️

Marizza181 [45]

Answer:

Part 1) $0.675\%$

Part 2) $475\%$

Part 3) $8\%$

Part 4) $\frac{67}{20}$

Part 5) $2.65$

Step-by-step explanation:

Part 1) Write as a percent 0.00675

we know that

To write a number as a percent, multiply the number by 100

$0.00675*100=0.675\%$

Part 2) Write as a percent 4 3/4

Convert mixed number to an improper fraction

$4\frac{3}{4}=\frac{4*4+3}{4}=\frac{19}{4}$

we know that

To write a fraction as a percent, multiply the fraction by 100

$\frac{19}{4}*100=19*25=475\%$

Part 3) Write as a percent 2/25

we know that

To write a fraction as a percent, multiply the fraction by 100

$\frac{2}{25}*100=2*4=8\%$

Part 4) write as a fraction 335%

we know that

$335\%=\frac{335}{100}$

Simplify

Divide by 5 both numerator and denominator

$\frac{335}{100}=\frac{67}{20}$

Part 5) Write as a decimal 265%

we know that

$265\%=\frac{265}{100}=2.65$

3 0

3 years ago

3x+30+x=10+2x+5x+2 <br> i need help fast

kupik [55]

Answer:

x=6

Step-by-step explanation:

Group Like Terms:

3x+x+30=10+2x+5x+2

Add similar elements 3x+x=4x:

4x+30=10+2x+5x+2

Add similar elements 2x+5x=7x:

4x+30=10+7x+2

Group like terms:

4x+30=7x+10+2

Add the numbers 10+2=12:

4x+30=7x+12

Subtract 30 from both sides:

4x+30-30=7x+12-30

Simplify:

4x=7x-18

Subtract 7x from both sides:

4x-7x=7x-18-7x

Simplify:

-3x=-18

Divide both sides by -3:

$\frac{-3x}{-3} =\frac{-18}{-3}$

Simplify:

x=6

Hence, the correct answer is 6

4 0

2 years ago

The equation 116 = -7(4 - 2p) + 4p<br> is equivalent to which of the following?

Alexxx [7]

Answer:

Step-by-step explanation:

You distribute -7 into (4-2p) and then combine like terms to get 116=-28-18p

4 0

3 years ago

What will be the total cost of Devon's first year?

ELEN [110]

Answer: Q1: $8,050

Q2: $5,400

Q3: $2,650

Step-by-step explanation:

4 0

3 years ago

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When Nikki and Kara worked together last year, they painted a fence in 8 hours. The previous year, Nikki painted the fence by he

motikmotik

I believe d is the answer please contact me if its wrong

7 0

4 years ago