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3 years ago

I need help im gonna fail

Mathematics

2 answers:

Firdavs [7]3 years ago

6 0

Answer:

Step-by-step explanation:

Okay so this question is quite simple all we have to do is take away 1/3 from each candy bar and count how many 1/3rds there are in all 4 candy bars.

This is very simple all we have to do is add 3 + 3 + 3 + 3 or 3 x 4

If you multiply 3 by 4 you get 12.

So, in conclusion, 12 people could get 1/3 of Joannas' 4 candy bars

Anvisha [2.4K]3 years ago

6 0

there is a page its called calculator soup and that should help

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2x + 8y=30 y=2 solve for x

fomenos

Answer:

x = 7

Step-by-step explanation:

2x + 8y=30

y=2

2x + 8(2) = 30

2x + 16 = 30

2x = 30 - 16

2x = 14

x = 14/2

x = 7

3 0

3 years ago

Anyone know how to do this?

IrinaVladis [17]

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3 0

3 years ago

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The amount of snow fall falling in a certain mountain range is normally distributed with a mean of 74 inches, and a standard dev

Nutka1998 [239]

Given that the sample mean is μ=74 and sample standard deviation σₓ= $\frac{σ}{ \sqrt{n}} =\frac{12}{\sqrt{36}} =2$ .

Thge Z- score is $Z=\frac{76.8-74}{2} =1.4$ .

Now we use the Z-score to calculate the required probability.

Refer to standard normal distribution table.

The required probability is

$P(X>76.8) =P(Z>1.4)=1-P(Z$

4 0

3 years ago

Can a system of two linear equations have exactly two solutions?

Elenna [48]

Most linear systems you will encounter will have exactly one solution. However, it is possible that there are no solutions, or infinitely many. (It is not possible that there are exactly two solutions.) The word unique in this context means there is a solution, and it's the only one.

Hope this helps.

3 0

3 years ago

Bud's cheeseburger and fries contained 1310 milligrams and 350 milligrams of sodium, respectively. Together they contained 66.4%

Serhud [2]

Answer:

The recommended daily intake of sodium for a 2000 calorie diet is 2500 mg.

Step-by-step explanation:

In order to calculate the daily intake of sodium we first need to calculate the mass of sodium present in both snacks, this is given by their sum.

$\text{total sodium} = 1310 + 350 = 1660 \text{ mg}$

We can now apply a rule of three for which the total sodium from the snacks is related to 66.4% in the same proportion as "x" mg, which is the value we want to know, is related to 100%. So we have:

$\frac{1660}{x} \frac{mg}{mg} = \frac{66.4\%}{100\%}$

$66.4*x = 1660*100\\x = \frac{166000}{66.4} = 2500 \text{ mg}$

The recommended daily intake of sodium for a 2000 calorie diet is 2500 mg.

5 0

4 years ago