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3 years ago

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Mathematics

1 answer:

vodka [1.7K]3 years ago

8 0

Kyle drove x hours

Sally drove x + 7 hours

Added together they both drove 2x + 7 hours

2x +7 = 35 hours

Subtract 7 from both sides:

2x = 28

Divide both sides by 2:

x = 14

Kyle drove 14 hours

Sally drove 21 hours

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Following are the published weights (in pounds) of all of the team members of Football Team A from a previous year.

son4ous [18]

Answer:

Kindly check explanation

Step-by-step explanation:

A.) Rearranged data (ascending order)

174, 175, 178, 184, 185, 185, 185, 185, 188, 190, 200, 203, 205, 206, 210, 211, 211, 212, 212, 215, 215, 220, 223, 228, 230, 232, 241, 241, 242, 245, 247, 250, 250, 259, 260, 260, 265, 265, 270, 272, 273, 275, 276, 278, 280, 280, 285, 285, 286, 290, 290, 295, 302

Size of data, n = 53

B.) median :

1/2*(n+1)th term

1/2 * (53 + 1)

1/2 *54th term = 27 th term

= 241

C.) first quartile (Q1) :

1/4*(n+1)th term

1/4 * (53 + 1)

1/4 *54th term = 13.5

(13 + 14)th term / 2

(205 + 206) /2

= 205.5

D.) third quartile (Q3) :

3/4*(n+1)th term

3/4 * (53 + 1)

3/4 *54th term = 40.5

(40 + 41)th term / 2

(272 + 273) /2

= 272.5

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3 years ago

A path is 0.75 m wide. Mr. Kassel extends the width by placing blocks 20 cm wide on each side of the pathl. What is the new widt

Nuetrik [128]

We know that there are 100 cm in 1 m. We can convert 0.75 m to cm by multiplying by 100 to give us:

$0.75m*100=75cm$

Therefore the path before the addition is 75 cm wide.

Mr. Kassel added 20 cm of blocks on each side of the path, meaning that the added width is actually 40 cm total (20 on each side, and there are 2 sides).

So we need to add 40 cm to the original 75 cm:

$40cm+75cm=115cm$

So now we have the width of the path in cm, the question asks for the width in meters. We can do this by dividing the width in cm by 100 to get the width in meters:

$\frac{115cm}{100}=1.15m$

Now we know that the new width of the path is 1.15 m.

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4 years ago

Matt thinks of a number. when he multiplies it by 5 and adds 6 he gets the same as when he multiplies it by 6 and subtracts 5. w

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The number is 10.
5*10=50
50+5=55
6*10=60
60-5=55

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3 years ago

Joey's age is 3 less than twice his brother's age. Joey is 13 years old. How old is his brother?

Murrr4er [49]

Answer:

Step-by-step explanation:

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