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3 years ago

I need help I don’t know what is the scoring rate

Mathematics

1 answer:

Semmy [17]3 years ago

3 0

It’s 21 because 252 divided by 12 equals 21

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April lost 5 pounds in her first week of college. Over the next three weeks she lost 3 pounds, gained 2 pounds, and then lost 1

Doss [256]

Change in April's weight is -7

Solution:

Let the initial weight be "x"

April lost 5 pounds in her first week of college

First week = lost 5 pounds

Therefore, x - 5

Over the next three weeks she lost 3 pounds, gained 2 pounds, and then lost 1 pound

Next three week:

Lost 3 pound

Gained 2 pound

Lost 1 pound

Therefore, weight after 4 weeks is given as:

x - 5 - 3 + 2 - 1 = x -7

After 4 week, the weight is x - 7

The change in April weight is given as:

Weight after 4 week - initial weight = x - 7 - x = -7

Thus change in April's weight is -7 (Negative sign represents loss in weight )

4 0

3 years ago

If you do 2+2 does it equal 22? or am i dum?

VMariaS [17]

I thought it was eight bro;;-;

8 0

3 years ago

Read 2 more answers

Leonora is factoring a trinomial. The factors of the trinomial are shown on the model. Which trinomial did she factor?

Vedmedyk [2.9K]

Can you put the model on the quesion

3 0

3 years ago

Read 2 more answers

Which statement explains the difference between a line and a segment?

Mekhanik [1.2K]

Answer:

Step-by-step explanation:

7 0

3 years ago

A die with six faces has the number 1 painted on three of its faces, the number 2 painted on 2 of its faces, and number 3 on one

salantis [7]

Answer:

a) S = {1, 2, 3}

b) P(odd number) = $\frac{2}{3}$

c) No

d) Yes

Step-by-step explanation:

a) The sample space is the set of all possible outcomes. By definition, the elements of a set should not be repeated. Hence, the sample space S = {1, 2, 3}

However, the sample is not equiprobable because each element has different probabilities.

b) P(odd number) = $\frac{number of odd digits}{number of faces}=\frac{4}{6}=\frac{2}{3}$

Note that the odd numbers are 1 (on three faces) and 3 (on one face).

c) The fact the die has been biased does not change the possible outcomes. It only changes the probability of getting any given number.

d) Because the 3-face has been loaded, this probability changes. In fact, it is calculated thus:

Let's assume the probability for 1 or 2 is $x$ . Then that of 3 is $2x$ (because it is twice the others). The sum of probabilities must be 1.

$x+x+x+x+x+2x=1$

$7x=1$

$x=\frac{1}{7}$

P(odd number) = $3\times$ Prob(1) + Prob(3)

= $3\times\frac{1}{7}+\frac{2}{7}$ = $\frac{5}{7}$

7 0

3 years ago