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3 years ago

Evaluate 4ac for a = 1 and c = 12

Mathematics

2 answers:

babymother [125]3 years ago

8 0

The answer is 48
When multiplying anything by 1, it won’t usually change the answer, so your basically only multiplying it by 12, which makes it 48.

Mademuasel [1]3 years ago

3 0

You out 1 in for A and 12 in for C 4(1)(12) = 48

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Almost of the mass of the human body is made up of just six elements.

Vesnalui [34]

Answer:

Step-by-step explanation:

To solve each of these all you have to do is multiply 60kg which is the whole mass of a human body times the percentage so..

Oxygen = (0.65)(60) = 39kg

Carbon = (0.18)(60) = 10.8kg

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Nitrogen = (0.03)(60) = 1.8kg

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These numbers dont exactly add up to 60 because the percentages gives dont add up to 100%, but this is how to do it.

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WARRIOR [948]

170cm apart on the map and 0.71 kilometers on the map

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3 years ago

A salesperson is paid a base salary of $300 a week plus a 5% commission on the sales he generates. Which inequality best represe

Damm [24]

The expression can be written as the inequality:

300+0.05s≥500

300$ is made per week, so we start off with

300

He also makes 5% or 0.05 from his sales, so we add in the expression 0.05x (where s is equal to his sales volume for the week)

300+0.05s

If he wants to make at least 500$ weekly, then the total of the base salary plus the commission has to be 'greater than or equal to 500.

300+0.05s≥500

Lets solve for s now...

300+0.05s≥500
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8 0

4 years ago

Read 2 more answers

The blue dot is at what value on the number line?

EastWind [94]

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3 years ago

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5. Priya mixes 2..5 cups of water with 1/3 cup or orange juice concentrate. Diego mixes 1 2/3 cups of water with 1/4 cup or oran

Snowcat [4.5K]

Priya needs 13⅓ cups of orange juice

Diego 15 cups

Step-by-step explanation:

......................................................................................................................

Priya

......................................................................................................................

Cup of water = 2½

Cup of orange = ⅓

If 2½ cups of water requires ½ cup of orange juice concentrate

Then 100 cups of water would require x cup of orange

Representing the above statement mathematically

2½ : ⅓ = 100 : x

5/2 : 1/3 = 100 : x ------------------Convert ratio sign to division

5/2 ÷⅓ = 100/x

5/2 * 3 = 100/x

15/2 = 100/x ---------------Multiply both sides by x

15/2 * x = 100/x * x

15x/2 = 100 ------------------ Multiply both sides by 2

2 * 15x/2 = 2 * 100

15x = 200 --------------- Divide both sides by 15

x = 200/15

x = 13⅓

So, 13⅓ cups of orange is needed by Priya

......................................................................................................................

Diego

......................................................................................................................

Cup of water = 1⅔

Cup of orange = ¼

If 1⅔ cups of water requires ¼ cup of orange juice concentrate

Then 100 cups of water would require x cup of orange

Representing the above statement mathematically

1⅔:¼ = 100:x

5/3 : ¼ = 100:x

5/3 ÷¼ = 100 ÷ x

5/3 * 4/1 = 100 ÷ x

20/3 =100/x----------------------- Multiply x to both sides

20/3 * x = 100/x * x

20x/3 = 100 ------------------------ Multiply 3 to sides by 3

3 * 20x/3 = 100 * 3

20x = 300 ------------- Divide both sides by 2

20x/20 = 300/20

x = 15

So, 15 cups of orange is needed by Diego

6 0

3 years ago