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2 years ago

What does That symbol mean

Mathematics

2 answers:

patriot [66]2 years ago

3 0

Answer:

That symbol is a square root.

Step-by-step explanation:

Law Incorporation [45]2 years ago

3 0

Square root symbol, it means the opposite of squaring something. if i were to square 6 it would be 6x6=36 so it’s asking yxy=24

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Audrey has $111 to spend on a tennis racket and lessons. The racket costs $55 and the lessons cost $14 per hour. Define a variab

Mnenie [13.5K]

Answer:

Audrey can afford 4 hours of lesson.

Step-by-step explanation:

Given that:

Amount Audrey has to spend = $111

Cost of racket = $55

Cost per lesson = $14

Let,

y be the total cost

x be the number of hours

According to given statement;

y = 14x + 55

111 = 14x + 55

111 - 55 = 14x

14x = 56

Dividing both sides by 14

$\frac{14x}{14}=\frac{56}{14}\\x=4$

Hence,

Audrey can afford 4 hours of lesson.

7 0

3 years ago

A spinner is half red and half blue. If you spin the spinner twice, what is the probability that you will get red both times?

Usimov [2.4K]

Answer: Probability of getting red both times is $\frac{1}{4}$

Step-by-step explanation:

Since we have given that

A spinner is half red and half blue.

Probability of getting red is given by

$\frac{1}{2}$

Probability of getting blue is given by

$\frac{1}{2}$

Since he spins the spinner twice.

Probability that you will get red both times is given by

$\frac{1}{2}\times \frac{1}{2}\\\\=\frac{1}{4}$

Hence, Probability of getting red both times is $\frac{1}{4}$

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2 years ago

What does zero represent your story problem of 8 and 12

KiRa [710]

Answer:

8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent.

Step-by-step explanation:

Solve addition and subtraction word problems, and add and subtract within 10.

6 0

2 years ago

3. When did the law become effective?

galben [10]

Answer:

which law?

Step-by-step explanation:

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2 years ago

A building contractor buys 60% of his cement from supplier A and 40% from supplier B. A total of 95% of the bags from A arriv

docker41 [41]

Answer: 0.665.

Step-by-step explanation:

60% of the bags are from supplier A, and 95% of them are undamaged.

40% of the bags are from supplier B, and 75% of them are undamaged.

Then, the number of undamaged bags from supplier A is:

0.6*0.95 = 0.57 or 57%

from B is:

0.4*0.75 = 0.3 or 30%

This means that the percentage of undamaged bags is:

57% + 30% = 87%.

Then, the probability that an undamaged bag is from supplier A is equal to the percentage of undamaged bags that came from supplier A (57%) and the total percentage of undamaged bags (87%) this is:

P = 57%/87% = 0.655 or 65.5%

Then the probability that an undamaged bag comes from supplier A is 0.665.

7 0

2 years ago