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Anna [14]
2 years ago
13

Where are the Cookies? Mrs. Goodwin left a tray of eookies on the counter early one morning. Dean walked by before lunch and dec

ided to take 1/3 of the cookies on the tray. Later that ufternoon Elsie came in and ate 1/4 of the remaining cookies. After dinner, Clark saw the tray of cookies and ate 1/2 of the cookies remaining at that ti me. Before bedtime, Mrs. Goodwin discovered the tray had only 6 cookies left. How many cookies were on the tray when Mrs. Goodwin first left it on the counter? IHow many cookies did each of the children eat?​
Mathematics
1 answer:
dsp732 years ago
6 0

24 cookies

dean ate 8 cookies

elise ate 4 cookies

clark ate 6 cookies

Step-by-step explanation:

i am pretty sure this is correct  

make a diagram of a circle with twelve spots

change 1/3 to 4/12, so color in 4 spots for dean

multiplie 1/4 times 8/12 ( the remaining spots), color in that number of spots for elise

do the same with 1/2, color in the amount of spots for clark

you will have 3 spots left, meaning each spot is worth 2 cookies

multiplie the number of spots times two to get your answer for each person

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Answer:

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Step-by-step explanation:

Confidence interval is the range the true values fall in under a given <em>confidence level</em>.

Confidence level states the probability that a random chosen sample performs the surveyed characteristic in the range of confidence interval. Thus,

90% confidence interval means that there is 90% probability that the statistic (in this case SAT score improvement) of a member of the population falls in the confidence interval.

7 0
3 years ago
What system shows the correct numbers to multiply by the coefficients in order to eliminate y from the first two
Ann [662]

Answer:

3 (5x+2y = 0)

2 (2x – 3y = -19)

Step-by-step explanation:

5x+2y=0 (1)

2x-3y=-19 (2)

To eliminate y from the first two equation when applying the linear combination method

We will multiply y Equation (1) and (2) with 3 and 2 respectively so that the coefficients of y in the two equations +6 and -6 respectively

3(5x+2y=0)

2(2x-3y=-19)

We have,

15x+6y=0 (3)

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Add Equation (3) and (4)

19x=-38

x= -2

Substitute x= -2 into (1)

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3 0
2 years ago
*The rectangle to the left is divided into 12 shapes. One of them is a rectangle labeled with #1 and the remaining 11 shapes are
Mandarinka [93]

Given that the length of side of shaded area is 1 ft.

Making equal square of size of shaded area we have:

Horizontally number of shaded area are 12

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So, the horizontal length of big rectangle is 12 ft.

The vertical length of big rectangle is 11 ft.

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2 years ago
Which of the following is in order from smallest to largest?
kirill115 [55]

Answer:

-5,-8,-10,1,7

Step-by-step explanation:

6 0
3 years ago
Estimate this product by rounding each number to one nonzero digit before multiplying: (2876)(513)(18) ASAP PLEASE
DerKrebs [107]
2876 Rounds To 3000
513 Rounds To 500
18 Rounds To 20
Then multiply:
3000x500x20= 30,000,000 

Hope i helped :)
5 0
2 years ago
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