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3 years ago

Write an expression to match the words three times the sum of 8and 4

Mathematics

2 answers:

Basile [38]3 years ago

8 0

8+4=12 x 3 =36 I just have to have 20 characters ignore this part :)

vfiekz [6]3 years ago

5 0

3x8+4 because 3 times so that is 3 x the sum of 8 and 4 so 8+4 together it would be 3x8+4

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What is one way to find the number of grams in 6 kilograms?

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Answer:

Multiply by 1000

Step-by-step explanation:

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3 years ago

In the year 2019, Lee County used approximately 55 million gallons of water. Historical trends show that each year the water dem

Harlamova29_29 [7]

Answer:

Approximately 62 gallons of water will be used by Lee County by the year 2025.

Step-by-step explanation:

The amount, in millions gallons of water, spent by Lee County, in t years after 2019, is given by the following equation:

$P(t) = P(0)(1 + r)^{t}$

In which P(0) is the amount spent on 2019 and r is the increse rate, as a decimal.

In the year 2019, Lee County used approximately 55 million gallons of water.

This means that $P(0) = 55$

Historical trends show that each year the water demand is increasing by a rate of approximately 2.1%.

This means that $r = 0.021$

$P(t) = P(0)(1 + r)^{t}$

$P(t) = 55(1 + 0.021)^{t}$

$P(t) = 55(1.021)^{t}$

Approximately how many million gallons of water will be used by Lee County by the year 2025?

2025 is 2025 - 2019 = 6 years after 2019. So this is P(6).

$P(t) = 55(1.021)^{t}$

$P(6) = 55(1.021)^{6}$

$P(6) = 62.3$

Rounded to the nearest millions

Approximately 62 gallons of water will be used by Lee County by the year 2025.

3 0

3 years ago

It says to use compatible numbers also help!

Rus_ich [418]

First, multiply 30 with 25

30 x 25 = Area

Area = 750 square yards

one bag gives you 100 square yards

Divide the two numbers

750/100 = 7.5

Since you cannot buy half a bag, you must round up

8 bags is needed

hope this helps

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Step-by-step explanation:

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