MATHEMATICS MIDDLE SCHOOL

A cleaning crew can clean five offices in six hours how many offices can they clean in 12 hours

Answers

Answer 1

Answer:

Answer:

10 offices in 12 hours :)

Step-by-step explanation:

Answer 2

Answer: I Believe The Answer Is 10 Offices In 12 Hours

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9. Ziggy sold Girl scout cookies as a fundraiser. She sold 35 boxesof thin mints and 28 boxes of Samoas. What is the ratio of thenumber of boxes of Thin Mints sold to the total number of boxessold?a. 28 to 63b. 35 to 63C. 28 to 35d. 63 to 35

NEED ANSWER ASAP!!A-1 Deli sells jugs of iced tea that they have marked up 150% above their wholesale cost of $0.80 per jug. They also charge sales tax of 9%. What is the total cost of a jug of iced tea from A-1 Deli?

1. $1.27
2. $1.31
3. $2.00
4. $2.18

Answers

Answer:

Option 4: $2.18

Step-by-step explanation:

Lets first analyse our given information. We know that:

- Original Cost Per Jug: $0.80

- Mark Up cost: 150%

- Sales Tax: 9%

Now the Mark Up cost essentially means that the original price of any item has gone up (i.e. increased). So first let us find the Mark Up final cost of a $0.80 jug when price has increased by 150%, as follow:

$0.80+0.80(150)/(100) =0.80 + 1.2=2$

Thus the jug after the mark up now costs $2.

Now lets compute the sales tax on the final jug cost, thus the 9% Tax on $2 as follow:

$2+2(9)/(100)=2+0.18=2.18$

So finally the total cost of a jug of iced tea from A-1 Deli is $2.18 dollars (i.e. Option 4).

Answer:

2.18

Step-by-step explanation:

Hi Hello Hi Hello

(0.5x - 4 - (1.5x + 2.3)

Answers

Answer: 1/10(-10x-63)

Step-by-step explanation:

1) decimals to fractions

1/2x-4-(3/2x+23/10)

2) factor

1/2(x-8)-1/10(15x+23)

3) factor out 1/10

1/10[5(x-8)-(15x+23)]

4) distribute 5 through ()’s

1/10(5x-40-15x-23)

5) collect like terms

1/10(-10x-63)

A go kart top speed is 607,200 feet per hour.what is the speed in miles per hour

Answers

   (607,200 feet) x (1 mile / 5,280 feet)

   = (607,200 / 5,280) miles

   =    115 miles .

Terrance is planning to make an online purchase. He is buying a tie for $13.42, a shirt for $25.76, and a pair of pants for $19.80. What will be his total before tax?A.$57.98
B.$47.98
C.$41.16
D.$58.98

Answers

13.42 + 25.76 = 39.18 + 19.80 = 58.98

Answer: 58.98

Step-by-step explanation:

13.42 + 25.76 = 39.18 + 19.80

18. In their last basketball game, Holly scored25 points and Juanita scored 16 points. The
mean number of points Holly scores is 20 with
a standard deviation of 2. The mean number
of points Juanita scores is 12 with a standard
deviation of 1.25. Whose score is better relative
to her average number of points per game?

Answers

Answer:

Juanita's score was better

Step-by-step explanation:

Juanita scored 6.4 points above her average score whereas Holly only scored 2.5 points above her average score. (this was calculated via z-scores)

Final answer:

To find who performed better relative to their average, we calculated the z-scores of both players. Juanita's score was 3.2 standard deviations above her mean, whereas Holly's was 2.5 standard deviations above her mean, making Juanita's performance relatively better.

Explanation:

To answer this question, we need to find how many standard deviations each player's score deviates from their respective means. This is referred to as the z-score. The z-score is calculated using the formula (X - μ) / σ, where X is the score, μ is the mean score and σ is the standard deviation.

For Holly, her z-score would be (25 - 20) / 2 = 2.5. This means Holly's score was 2.5 standard deviations above her mean score.

For Juanita, her z-score would be (16 - 12) / 1.25 = 3.2. This means Juanita's score was 3.2 standard deviations above her mean score.

Since Juanita's z-score is higher than Holly's, Juanita's score is better relative to her average number of points per game.