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s344n2d4d5 [400]
2 years ago
6

Ronny, Celina, Jack, and Michelle together placed a total of 20 brownies on a tray. Ronny placed 0.15 of the brownies, Celina pl

aced 3 of the 20 brownies, Jack placed 30% of the brownies, and Michelle placed the remaining brownies. Who placed the most brownies?
Mathematics
2 answers:
Likurg_2 [28]2 years ago
8 0

Answer:

To answer the question above, evaluate the number of cookies each of them placed on a tray. The calculations are shown below,

Ronny              C1 = 0.15 x 20 = 3

Celina              C2 = 3

Jack                 C3 = 0.30 x 20 = 6

Michelle           C4 = 20 - (3 + 3 + 6) = 8

From the calculation above, Michelle placed the most number of brownies on the tray.

grigory [225]2 years ago
5 0
Ronny placed 0.15 that means fifteen percent. Celina placed three that means 15 percent once again. Jack placed 30 percent. Therefore michelle places 100 - 60 equal to 40 percent. That is the highest
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Javier writes an integer on a piece of paper. The absolute value of his number is less than 4. Which is true of the possible val
mrs_skeptik [129]

Answer:

3, -2, -1, 0, 1, 2, 3

Step-by-step explanation:

Given the inequality expression |x| < 4 where x is unknown. To her the possible values of x, we must undeterstand that the absolute value of a number returns both positive and negative value.

Hence |x| can either return +x or -x

If x is positive, the inequality expression will be x<4.

If the value of x is negative, then -x<4

From -x<4

Multiply both sides by minus sign will change the sense of the inequality sign.

-(-x) > -4

x>-4

If x is greater than -4, then -4<x.

Combining both inequality will give;

-4 < x and x<4

-4<x<4

Hence the possible values of Javier's number are integers between -4 and 4.

The values are -3, -2, -1, 0, 1, 2, 3.

4 0
2 years ago
Josephine bought 8 packets of biscuits. Each packet had a mass of 500 g
Nataly_w [17]

Answer: 985 g

Step-by-step explanation:

Total mass = 8 × 500g = 4000g

Let the three new packs be X, Y, and Z, for first, second, and third pack respectively.

4000g = X + Y + Z

let's put X and Z in terms of Y, since we're trying to solve for the second pack.

X = 2Y, and Z = Y + 60

Therefore,

4000 = X + Y + Z

4000 = 2Y + Y +Y + 60

4000 = 4Y +60

4000 - 60 = 4Y

3940 = 4Y

3940 ÷ 4 = Y

985g = Y = mass of the second pack

7 0
2 years ago
A packet contains 1.5kg of oats.
Vlad1618 [11]
1.5kg is 1500 grams.
Maria uses 50g a day, so to know how many days takes eating the whole packet just divide 1500 by 50.
4 0
2 years ago
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The ratio of dogs to cats in the Bark and Meow Pet Center is 4:7. If there are 35 cats staying at the Bark and Meow Pet Center,
Harman [31]

Answer:

20.

Step-by-step explanation:

5x7=35

5x4=20

8 0
2 years ago
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Thirty-two percent of fish in a large lake are bass. Imagine scooping out a simple random sample of 15 fish from the lake and ob
klio [65]

Answer:

Thirty-two percent of fish in a large lake are bass. Imagine scooping out a simple random sample of 15 fish from the lake and observing the sample proportion of bass. What is the standard deviation of the sampling distribution? Determine whether the 10% condition is met.

A.  The standard deviation is 0.8795. The 10% condition is met because it is very likely there are more than 150 bass in the lake.

B. The standard deviation is 0.8795. The 10% condition is not met because there are less than 150 bass in the lake.

C. The standard deviation is 0.1204. The 10% condition is met because it is very likely there are more than 150 bass in the lake.

D. The standard deviation is 0.1204. The 10% condition is not met because there are less than 150 bass in the lake.

E. We are unable to determine the standard deviation because we do not know the sample mean. The 10% condition is met because it is very likely there are more than 150 bass in the lake

The answer is E.

6 0
2 years ago
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