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chubhunter [2.5K]

2 years ago

9

How many cups for raisins should the hikers have used if they had w cups of peanuts? 3 cups of peanuts? 5 cups of peanuts? Expla

in your reasoning.

1 answer:

9966 [12]2 years ago

4 0

Answer:

we need 2.5 cups of raisins when there is 5 cups of peanuts.

Step-by-step explanation:

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Heights of 10 year olds, regardless of gender, closely follow a normal distribution with mean 55 inches and standard deviation 6

Firlakuza [10]

Given:
μ = 55 in, population mean
σ = 6 in, population standard deviation

Part (a)
x = 48 in, the random variable
Calculate the z-score.
z = (x - μ)/σ
= (48 - 55)/6
= -1.667
From standard table, obtain
P(X < 48) = 0.12167

Answer: 0.1217 (tyo 4 dec.places)

4 0

3 years ago

Mark and Mike are brothers. The sum of their ages is eleven. Mike's age is ten

ivann1987 [24]

Answer:mark is 7. Mike is 4

Step-by-step explanation:x+y=11. Y=2x-10 thus substituting for y in equation1 we have x+2x-10=11. 3x-10=11. 3x=11+10. 3x=21. X=21/3. X=7. Mike =(2×7)-10=14-10=4

8 0

3 years ago

Read 2 more answers

Finn removes the plug from a trough to drain the water. The volume, in gallons, in the trough after it has been unplugged can be

aksik [14]

Answer:

Step-by-step explanation:

The expression used to model the volume, in gallons, is 12x^2-13x+3

When the through is empty it means that there is no water in it wich means that the expression used equals 0

● 12x^2-13x+3 = 0

The expression is quadratic equation so to solve it we will use the discriminant method

The discriminant is b^2-4ac

● b= -13

● a= 12

● c= 3

b^2-4ac = (-13)^2+4×12×3 = 25

25 > 0 so the discriminant is positive

We have two solutions

Let x and x' be the solutions

x = (-b-5)/2×a =(13-5)/24 = 8/24 = 1/3

5 is the root square of 25 (the discriminant)

x' = (-b+5)/2a = (13+5)/25 = 18/24 = 3/4

The solutions are 1/3 and 3/4

1/3 = 0.34

3÷4 = 0.75

The through can't be empty from water in two different times

So it will be empty when reaching one of the 2 solutions first

0.34 < 0.75

Then at 0.34 min the through is epty from water

5 0

3 years ago

Read 2 more answers

10. A cube has faces numbered 1 to 6. If you roll this cube 4 times, how many different outcomes are possible?

Georgia [21]

Answer: If we throw 4 cubes, there are 1296 different outcomes are possible.

Step-by-step explanation:

Given : A cube has faces numbered 1 to 6.

So the number of outcomes for throwing one die = 6

If we throw 4 cubes , then

According to the Fundamental counting principle,

The total number of different outcomes are possible = $(\text{Number of outcomes for throwing one die})^4$

Therefore , The total number of different outcomes are possible $=6^4=1296$

Hence, there are 1296 different outcomes are possible.

8 0

3 years ago

Can I pls get help I'm STRUGGLING so bad and I need to turn this in tmrw

irinina [24]

Answer:

The file contains the solution to the question

3 0

2 years ago