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3 years ago

10. Mr. Schmidt's classes combined have 42 boys and 56 girls. He wants to divide them up into

Mathematics

1 answer:

Gemiola [76]3 years ago

7 0

Answer:

A: 7

B: 8

C: 6

Step-by-step explanation:

You have to try to find the the same greatest factor of both of the numbers.

Since both of the numbers are divisible by 7 the number of groups equals 7.

So you divide the number of girls, which is 56, by 7, the number of girls in each group is 8.

Then you divide the number of boys, which is 42, by 7, the number of boys in each group is 6.

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Which expression uses the associative property to make it easier to evaluate 14(3/2 x 1/4)

Sav [38]

Answer:

Not sure but the answer to 14(3/2 x 1/4) is 5.25

Step-by-step explanation:

6 0

2 years ago

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An individual needs a daily supplement of at least 420 units of vitamin C and 170 units of vitamin E and agrees to obtain this s

Ierofanga [76]

Answer:

To obtain equivalent amount from both foods we can eat 10 ounces of Food I and 5 Ounces of food II

To obtain minimum cholesterol, the individual should eat only 21 ounces of food II and zero ounce of food for the daily supplement of the individual

Step-by-step explanation:

Food I contains 32×C + 10×E per ounce

Food II contains 20×C + 14×E

Here we have X × (Food I) + Y × (Food II) = 420 C + 170 E

32·X + 20·Y = 420 C

10·X + 14·Y = 170 E

Therefore

X = 10 and Y = 5

To minimize the cholesterol, we can increase amount of Food II to get

21 ounces of food II gives

420 units of vitamin E and 294 units of vitamin E with 273 units of cholesterol.

3 0

3 years ago

Write the equation that represents the line graphed below

rodikova [14]

Answer:

(2,-6)

Step-by-step explanation:

If it's not that then(-6,2)

But if it's not either i'm sorry

7 0

2 years ago

Which is greater 9/20 or 60%

Readme [11.4K]

Answer:

60%

Step-by-step explanation:

9/20 is 45%

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3 years ago

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A continuous random variable X has cdf F(x)=x² b (a) Determine the constants a and b. for a < 0, for 0 < x < 1, for x &

Karolina [17]

Any proper CDF $F(x)$ has the properties

• $\displaystyle \lim_{x\to-\infty} F(x) = 0$

• $\displaystyle \lim_{x\to+\infty} F(x) = 1$

so we have to have a = 0 and b = 1.

This follows from the definitions of PDFs and CDFs. The PDF must satisfy

$\displaystyle \int_{-\infty}^\infty f(x) \, dx = 1$

and so

$\displaystyle \lim_{x\to-\infty} F(x) = \int_{-\infty}^{-\infty} f(t) \, dt = 0 \implies a = 0$

$\displaystyle \lim_{x\to+\infty} F(x) = \int_{-\infty}^\infty f(t) \, dt = 1 \implies b = 1$

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2 years ago