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3 years ago

11

Elijah is a running back on a football team. In the last game, he played for 4 3/4 minutes in the first half and 7 11/20 minutes

in the second half. Find his total playing time.

1 answer:

vodomira [7]3 years ago

4 0

Rewrite the fractions so they have a common denominator

3/4 = 15/20

Now add:

4 15/20 + 7 11/20 = 11 26/20

26/20 simplifies to 1 3/10

11 + 1 3/10 = 12 3/10 total minutes

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A Professor at a University sent his phone number in a disorderly manner to his students. The disordered phone number was 640011

Taya2010 [7]

Answer:

I found 608054144112

If the number isn't found by the given condition, write a variable to advance. but it is comfortable to solve if you follow them one by one

4 0

3 years ago

Can someone tell me if my answer is correct (and correct it if it's not)?

andre [41]

Answer:

15.59.

Step-by-step explanation:

The altitude of equilateral triangle bisects the base

So 1/2 base = 3.

Altitude of the triangle is found from Pythagoras theorem:

= sqrt(6^2 - 3^2)

= sqrt27

Area = 1/2 base * altitude

= 3 * sqrt27

= 15.59

5 0

3 years ago

Give the equation of a line that goes through the point ( − 24 , 2 ) and is perpendicular to the line 8 x + 3 y = − 6 . Give you

Studentka2010 [4]

Answer:

$y=\frac{3}{8}x+11$

Step-by-step explanation:

To find a line that is perpendicular to 8x + 3y = -6 and goes through (-24, 2), lets first find what the line's slope would be.

We can find this by finding the slope of 8x + 3y = -6 and taking the negative reciprocal of it.

We can find the slope of that line by putting it in slope-intercept form:

8x + 3y = -6

Subtract 8x from both sides.

3y = -6 - 8x

Divide both sides by 3.

$y=-\frac{6}{3}-\frac{8}{3}x$

$y=-\frac{8}{3}x-2$

So the slope of that line would be -8/3.

The negative reciprocal of -8/3 would be 3/8.

Now we know that the new line would have to pass through the point (-24, 2). We can use this point and write the equation in point-slope form:

$y-2=\frac{3}{8}(x+24)$

Now lets change this into slope-intercept form. Add 2 to both sides.

$y=\frac{3}{8}(x+24) +2$

Distribute the 3/8.

$y=\frac{3}{8}x+9+2$

Simplify.

$y=\frac{3}{8}x+11$

And now we have our equation in slope-intercept form.

I hope you find this helpful.

5 0

3 years ago

A study of one thousand teens found that the number of hours they spend on social networking sites each week is normally distrib

jek_recluse [69]

The z-value that corresponds to a two-tailed 95% confidence interval is z = +/- 1.96. Then the bounds of the confidence interval can be determined as:
Lower bound = mean - z*SD/sqrt(n) = 20 - 1.96*2/sqrt(100) = 20 - 0.12 = 19.88 hours
Upper bound = mean + z*SD/sqrt(n) = 20 + 1.96*2/sqrt(100) = 20 + 0.12 = 20.12 hours
So the first choice is the correct answer: 19.88-20.12 hours

7 0

3 years ago

1 2/3 divided by 4 1/2

blagie [28]

0.37

1 2/3 divided by 4 1/2

3 0

3 years ago

Read 2 more answers