Benson asked a group of 9th, 10th, 11th, and 12th graders the number of hours they work per week in the summer. The means of each group are provided below: 9th: 14.2 hours 10th: 18.8 hours 11th: 21.2 hours 12th: 24.9 hours Which conclusion can be made from this data?

that 11th graders workd more than anyone else

Step-by-step explanation:

Various educators teach rules governing the length of paragraphs. They may say that a paragraph should be 100 to 200 words long, or be no more than five or six sentences. But a good paragraph should not be measured in characters, words, or sentences. The true measure of your paragraphs should be ideas.

Step-by-step explanation:

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

146%

step-by-step explanation: