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3 years ago

The distance between -7 and 2 on the number line is

Mathematics

2 answers:

erik [133]3 years ago

8 0

Answer:

Step-by-step explanation:

First you want to go from -7 to 0 which give you seven,

Then you are gonna add the amount of <em>positive numbers</em>. And there your answer.

belka [17]3 years ago

3 0

Answer:

Step-by-step explanation:

count the spaces between the two numbers

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You MADE 82 out of 100 free-throws during practice. What is your shooting percentage?

alexgriva [62]

Answer:

82 percent

Step-by-step explanation:

really simple

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3 years ago

A Painter painted about a fourth of a room in a fourth of a day. Coley estimated the painter would paint 7 rooms in 7 days. Is C

yKpoI14uk [10]

Yes, it is reasonable. If a painter paints a fourth of a room in a fourth of a day, well that means in two-fourths of a day he would paint two-fourths of a room. Same for three fourths and four fourths, which is equal to one day. If he or she can paint one room in one day, it'd be reasonable to say that he can paint 7 rooms in 7 days.

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3 years ago

Which of these relations are functions? Select all that apply.

Lemur [1.5K]

Answer:

the first one on the top and the second one on the bottom

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3 years ago

Claudia earns the same dollar amount each hour she works. Last weekend, she worked a total of 9 hours and earned $72. Which equa

Mice21 [21]

y=8x can be used to find the total amount earned by Claudia.

Step-by-step explanation:

let,

x be the number of hours and y be the amount earned.

She earned $72 for 9 hours;

9x=72

Dividing both sides by 9;

$\frac{9x}{9}=\frac{72}{9}\\x=8$

Therefore she earns 8 dollars per hour.

As the amount is same, therefore,

Amount earned = Amount per hour * No. of hours

$y=8*x\\y=8x$

y=8x can be used to find the total amount earned by Claudia.

Keywords: division, multiplication

Learn more about multiplication at:

#LearnwithBrainly

5 0

3 years ago

The 2003 Zagat Restaurant Survey provides food, decor, and service ratings for some of the top restaurants across the United Sta

levacccp [35]

Answer:

See explanation

Step-by-step explanation:

5 of 15 top-ranking restaurants offer dinner for more than $50 and 10 offer dinner for less than $50.

You will eat dinner at three of these restaurants.

a) The probability that none of the meals will exceed the cost covered by your company is

$\dfrac{C^{10}_3}{C^{15}_3}=\dfrac{\frac{10!}{3!(10-3)!}}{\frac{15!}{3!(15-3)!}}=\dfrac{10!\cdot 12!}{7!\cdot 15!}=\dfrac{8\cdot 9\cdot 10}{13\cdot 14\cdot 15}\approx 0.2637$

b) The probability that one of the meals will exceed the cost covered by your company is

$\dfrac{C^{10}_2\cdot C^5_1}{C^{15}_3}=\dfrac{\frac{10!}{2!(10-2)!}\cdot \frac{5!}{1!(5-1)!}}{\frac{15!}{3!(15-3)!}}=\dfrac{10!\cdot 5!\cdot 3!\cdot 12!}{2!\cdot 8!\cdot 4!\cdot 15!}=\dfrac{ 9\cdot 10\cdot 5\cdot 3}{\cdot 13\cdot 14\cdot 15}\approx 0.4945$

c) The probability that two of the meals will exceed the cost covered by your company is

$\dfrac{C^{10}_1\cdot C^5_2}{C^{15}_3}=\dfrac{\frac{10!}{1!(10-1)!}\cdot \frac{5!}{2!(5-2)!}}{\frac{15!}{3!(15-3)!}}=\dfrac{10!\cdot 5!\cdot 3!\cdot 12!}{9!\cdot 2!\cdot 3!\cdot 15!}=\dfrac{10\cdot 3\cdot 4\cdot 5}{13\cdot 14\cdot 15}\approx 0.2198$

d) The probability that all three of the meals will exceed the cost covered by your company is

$\dfrac{C^{5}_3}{C^{15}_3}=\dfrac{\frac{5!}{3!(5-3)!}}{\frac{15!}{3!(15-3)!}}=\dfrac{5!\cdot 12!}{2!\cdot 15!}=\dfrac{3\cdot 4\cdot 5}{13\cdot 14\cdot 15}\approx 0.0220$

8 0

4 years ago