MATHEMATICS HIGH SCHOOL

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Help please :( CROWN ??? - 1

Answers

Answer 1
Answer:

Answer:

7&8 both true

9 is false

Step-by-step explanation:

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Answer 2
Answer:

Answer:

True

True

False

Step-by-step explanation:

2(7) -3 = 14 -3 = 11

2(8) -3 = 16 -3 = 13

2(9) - 3 = 15

The answer has to be less than 15

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Twice a number is added to three times its square. if the result is 16, find the number
A piece of wire 7/8 meter long broke into two pieces.one piece was 1/4 meter long. How is the other piece
Last year at a certain high school, there were 132 boys on the honor roll and 90 girls on the honor roll. This year, the number of boys on the honor roll increased by 25% and the number of girls on the honor roll increased by 20%. By what percentage did the total number of students on the honor roll increase? Round your answer to the nearest tenth (if necessary).

Which one of the following mathematical statements is true?A. 28 + 0 = 0
B. 0 ÷ 28 = 0
C. 28 – 0 = 0
D. 28 ÷ 0 = 0

Answers

B. 0 ÷ 28 = 0

Is the mathematical statement that is true.

Rule of ZERO. Zero(0) can be a numerator with non-zero denominator. Its overall value is equal to 0.

Rule of ZERO. A fraction with a denominator of ZERO is not a legal fraction. This is because the overall value of a number divided by zero is undefined.

28 + 0 = 28 not 0.
28 - 0 = 28 not 0.
28 ÷ 0 = ERROR! not 0. value is undefined

There are 4 aces and 4 kings in a standard deck of 52 cards. You pick onecard at random. What is the probability of selecting an ace or a king. Explain your reasoning.

Answers

The odds of picking a single card out of 52 is:
1/52

The odds of picking an Ace is:

4/52 (since there are 4 aces in a single deck)

The odds of picking an ace or a king is:

8/52 (since there are 4 aces and 4 kings in a single deck, 4+4=8_

8/52 can be simplified to 2/13 

Answer=2/13

Tom is the deli manager at a grocery store. He needs to schedule employees to staff the deli department at least 260 person-hours per week. Tom has one part-time employee who works 20 hours per week. Each full-time employee works 40 hours per week. Write an inequality to determine n, the number of full-time employees Tom must schedule, so that his employees will work at least 260 person-hours per week.

Answers

The expression that could best describe the statement would be " 40 n + 20 \geq 260. 

Answer:

260\leq 20+40n

Step-by-step explanation:

Given :

Tom needs to schedule employees to staff the deli department at least 260 person-hours per week.

Tom has one part-time employee who works 20 hours per week.

Each full-time employee works 40 hours per week.

To Find: An inequality to determine n, the number of full-time employees Tom must schedule, so that his employees will work at least 260 person-hours per week.

Solution :

Suppose that there are n number of full time employees.

Since each full time employee work for 40 hours per week .

So, n full time employees work for 40*n =40 n hours per week

And we are given that he  has one part-time employee who works 20 hours per week. so, this part time employee hours are fixed .

Since ,  Tom needs to schedule employees to staff the deli department at least 260 person-hours per week.

Thus inequality becomes :

260\leq 20+40n

Hence the inequality to determine n, the number of full-time employees Tom must schedule, so that his employees will work at least 260 person-hours per week :

260\leq 20+40n

48 pounds are equal to approximately ___kg.

Answers

48 pounds = 21.77243376 KG
i not sure but i think the answer is 48 LBS (Pounds) = 21.77243376 KG (Kilograms).hope this helps MLG M8

Calculate your answer to the nearest hundredth 3x=40

Answers

3x=40 
well first you have to divide 3 by both sides with a result of 
x=13.3 repeating 
so 13.3333333 to the nearest hundredth would be
x= 13.33

A single fair is tossed. find the probability of rolling a number grater than 4

Answers


Probability of the outcome you're looking for =

       (number of ways your outcome can happen)
divided by
       (total number of possible outcomes) .

Total number of possible outcomes when a single fair is tossed = 6 .

The outcomes you're looking for:  5  or  6 . (two of them) .

Probability  =  2 / 6  =  1/3  =  33-1/3 % 


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