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Bad White [126]
3 years ago
11

Raquel measured milk with a 1/2-cup measuring cup. She filled the cup 5 times and poured each 1/2-cup of milk in a bowl. How muc

h milk did Raquel pour into the bowl?
Mathematics
2 answers:
rodikova [14]3 years ago
8 0

Answer:

  2 1/2 cups

Step-by-step explanation:

5 × (1/2 cup) = 5/2 cup = 2 1/2 cup

__

Or, you can add them up. You know from your study of fractions that two half-cups make 1 cup.

  (1/2 cup) + (1/2 cup) + (1/2 cup) + (1/2 cup) + (1/2 cup)

  = ((1/2 cup) +(1/2 cup)) +((1/2 cup) +(1/2 cup)) +(1/2 cup)

  = (1 cup) + (1 cup) + (1/2 cup)

  = (2 cup) + (1/2 cup)

  = 2 1/2 cup

klasskru [66]3 years ago
8 0
Raquel filled the cup up 2.5 times
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A bag contains 20 marvels of the same size for blue green and red the probability of picking a blue marbles 20% probability of p
strojnjashka [21]

Answer:

30% chance of picking a red marble

Step-by-step explanation:

since 70% of the bag is filled with blue or green marbles the rest of the bag (100-70=30) is the percent of red marbles.

6 0
3 years ago
15 POINTS !!!!
Natalija [7]
So the answer would be A. I had a bit of trouble figuring this out, but then I went to Order of Operations and found it out. 

So you fill in n, and I just used 9 since it's in the question. So then, subtract 1 from 9, giving you 8. Then you multiply 0.35 by 8, giving you 2.8. Now lastly, add 7.51, and you get 10.31

I hope this helps you! If it does, please rate as Brainliest :D
3 0
3 years ago
Read 2 more answers
HELPPPP 100 points if you help!!!!
nignag [31]

Answer:

Part A)

Chorus:

c(t)=15(1.12)^t

Band:

b(t)=2t+30

Part B)

After 9 years:

The chorus will have about 41 people.

And the band will have 48 people.

Part C)

About approximately 11 years.

Step-by-step explanation:

We are given that there are 15 people in the chorus. Each year, number of people in the chorus increases by 12%. So, the chorus increases exponentially.

There are 30 people in the band. Each year, 2 new people join the band. So, the band increases linearly.

Part A)

Since after each year, the number of people in the chorus increases by 12%, the new population will be 112% or 1.12 of the previous population.

So, using the standard form for exponential growth:

c(t)=a(r)^t

Where <em>a</em> is the initial population and <em>r</em> is the rate of change.

We will substitute 15 for <em>a </em>and 1.12 for <em>r</em>. Hence:

c(t)=15(1.12)^t

This represents the number of people in the chorus after <em>t</em> years.

We are given that 2 new people join the band each year. So, it increases linearly.

Since there are already 30 people in the band, our initial point or y-intercept is 30.

And since 2 new people join every year, our slope is 2. Then by the slope-intercept form:

b(t)=mt+b

And by substitution:

b(t)=2t+30

This represents the number of people in the band after <em>t</em> years.

Part B)

We want to find the number of people in the chorus and the band after 9 years.

Using the chorus function, we see that:

c(9)=15(1.12)^9\approx41.59\approx41

There will be approximately 41 people in the chorus after 9 years.

And using the band function, we see that:

b(9)=2(9)+30=48

There will be 48 people in the band after 9 years.

Part C)

We want to determine after approximately how many years will the number of people in the chorus and band be equivalent. Hence, we will set the two functions equal to each other and solve for <em>t</em>. So:

15(1.12)^t=2t+30

Unfortunately, it is impossible to solve for <em>t</em> using normal analytic methods. Hence, we can graph them. Recall that graphically, our equation is the same as saying at what point will our two functions intersect.

Referring to the graph below, we can see that the point of intersection is at approximately (10.95, 51.91).

Hence, after approximately 11 years, both the chorus and the band will have approximately 52 people.

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Answer:

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Step-by-step explanation:

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