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3 years ago

I make 2.5kg of popcorn and eat 750g of it while 750g of it while watching a movie . How much popcorn do i have left?

Mathematics

1 answer:

elena-14-01-66 [18.8K]3 years ago

5 0

Answer:

1,75 kg

Explanation:

1 kg = 1000 g

2.5 kg = 2.5 × 1000 g = 2500 g

2500 g - 750 g = 1750 g

1750 g = 1750 ÷ 1000 kg = 1.75 kg

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An object is dropped from a building and allowed to freefall to the ground. The height of the object over time is shown in the t

vodomira [7]

Answer: The (magnitude of the) rate of change increases over time. The object drops 16 feet in the first second, but 80 feet in the last second.

Explanation:

1) I will start by showing the table in an easy way to read and understand:

Time (seconds) Height (feet)

0 144

1 128

2 80

3 0

2) Rate of change

An initial clarification: the rate of change decreases since it is becoming more negative every second, but, in the analysis, the reasonable is to deal with the magnitude of this rate. The results shown below that the rate as a negative value, but the comparison is set about the magnitude of the change.

The rate of change is calculated for every pair of consecutive points using this equation:

rate of change = [change in height] / [time elapsed]

Calculations:

a) rate₁: [128 - 144] feet / [ 1 - 0] sec = - 16 feet / sec ⇒ the object drops 16 feet in the first second.

b) rate₂ = [80 - 128] feet / [2 - 1] sec = - 48 feet/sec ⇒ the object drops 48 feet in the next second

c) rate₃ = [0 - 80] feet / [3 - 2] sec = - 80 feet/sec ⇒ the object drops 80 feet in the last second.

The rate of change is more negative every second: it increases in magnitude over time. The object drops 16 feet in the first second, but 80 feet in the last second.

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3 years ago

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Write a fraction that is equivalent to 0.997

user100 [1]

Answer:

$\frac{997}{1000}$ .

Step-by-step explanation:

Given : 0.997.

To find : write a fraction.

Solution : We have given that 0.997.

We can write it as $\frac{997}{1000}$ .

We used 1000 in denominator because of decimal before 3 digit number.

Therefore, $\frac{997}{1000}$ .

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3 years ago

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In the given polygon, AC= 5x - 24, AO= 3. Find x. NO LINKS!!!

egoroff_w [7]

Answer:

$x=6$

Step-by-step explanation:

5x - 24 = 3 * 2

5x - 24 = 6

5x = 30

x = 6

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2 years ago

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Two different weight loss programs are being compared to determine their effectiveness. Ten men were assigned to each program (t

True [87]

Answer:

WE reject the Null and conclude that one of the drug is more effective than the other.

Step-by-step explanation:

Given :

Diet 1 3.4 10.9 2.8 7.8 0.9 5.2 2.5 10.5 7.1 7.5

Diet 2 11.9 13.1 11.6 6.8 6.8 8.8 12.5 8.6 17.5 10.3

This is a matched pair sample :

The hypothesis :

H0 : μd = 0

H1 : μd ≠ 0

Hence, we intun the difference between the two groups of value :

Difference, d = -8.9,-2.2,-8.8,1,-5.9,-3.6,-10,1.9,-10.4,-2.8

The test statistic :

dbar ÷ (Sd/√n)

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Standard deviation of difference, Sd = 4.51

Test statistic :

-4.97 ÷ (4.51/√10)

Test statistic = - 3.485

The sample size, n = 10

df = n - 1 ; 10 - 1 = 9

Critical value (0.10, 9) = 1.833

If Test statistic > |Critical value |

Since 3.486 > 1.833 ; WE reject the Null and conclude that one of the drug is more effective than the other

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3 years ago

(100 points if answered) (attatched screenshot) Algebra II need question 1 and 2

Elanso [62]

Domain: (-♾,2)U(2,♾), {x | x ≠2}
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Sorry that’s all I can help with

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3 years ago