3 years ago

Shelly biked 21 miles in 4 hours. What is Shelly average speed in miles per hour

2 answers:

8 0

Divide 21/4

5.25m/h

m=miles
h=hours

3 0

To solve this, you would divide the miles by the number of hours, 21 / 4
21 divided by 4 equals 5.25

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Lyrx [107]

$36 - $12.75 is $23.25

6 0

3 years ago

Bingel [31]

This will help a lot if you go to desmos! Just graph the equation on there! It’s much easier to see on computer

7 0

3 years ago

Mazyrski [523]

we have

$x^{2}-8x=3$

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2}-8x+16=3+16$

$x^{2}-8x+16=19$

Rewrite as perfect squares

$(x-4)^{2}=19$

$(x-4)^{2}=19\\ (x-4)=(+/-)\sqrt{19} \\ \\ x1=4+\sqrt{19} =8.359\\ x2=4-\sqrt{19} =-0.359$

therefore

the answer is

$x1=4+\sqrt{19} =8.359\\x2=4-\sqrt{19} =-0.359$

5 0

3 years ago

Nat2105 [25]

10/10 in 1 whole and 1/100 in one whole

4 0

3 years ago

defon

Y = 1.25x + 30 <== ur function

for 3 hrs.....x = 3
y = 1.25(3) + 30
y = 3.75 + 30
y = 33.75 <=== for 3 hrs

8 0

3 years ago