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3 years ago

make skateboards 1/4 of a mile in half of an hour at this rate how far was when she skateboard in an hour

Mathematics

2 answers:

Anuta_ua [19.1K]3 years ago

3 0

Answer:

1/2 a mile

Step-by-step explanation:

if she goes 1/4 mile in 1/2 hour than you have to multiply 1/2 by 2 so you do the same thing to 1/4 which equals 2/4 simplified equals 1/2 so your answer is 1/2 a mile.

klemol [59]3 years ago

3 0

Answer:

C 1/2

Step-by-step explanation:

I took the test

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What's 1+1 ??? <br><br> enjoy!

Natalija [7]

1+1= -2628474
hope it helps

5 0

3 years ago

5x-(5x+3=-1/3(12x+21)

katrin2010 [14]

Answer: x = -1

Step-by-step explanation:

i assume you mean

5x-(5x+3) = -1/3(12x+21)

lets start with the left

-(5x+3) can be turnd into -5x-3

now it is

5x-5x-3 and that can be just -3

now lets go to the right and get rid of the 1/3

we see the 3 at the bottom of 1/3, and (12x+21) can be factored with 3

so 1/3 x 3(4x+7) is what we get

1/3 x 3 cancels out so we are left with

-3 = (-4x-7)

lets try to get -4x by itself

if you move -4x to the left, turning it into 4x, and move -3 to the right, turning it into 3, you get 4x = -7 +3

-7 +3 = -4

4x = -4

devide by 4

4x/4 = -4/4

x = -1

8 0

3 years ago

△ABC is a right triangle with right angle C. Side AC¯¯¯¯¯¯¯¯ is 6 units longer than side BC¯¯¯¯¯¯¯¯. If the hypotenuse has lengt

Vladimir [108]

Given:

In △ABC is a right angle triangle.

AC is 6 units longer than side BC.

$Hypotenuse=2\sqrt{17}$

To find:

The length of AC.

Solution:

Let the length of BC be x.

So, Length of AC = x+6

According to the Pythagoras theorem, in a right angle triangle

$Hypotenuse^2=Base^2+Perpendicualar^2$

△ABC is a right angle triangle and AC is hypotenuse, so

$(2\sqrt{17})^2=(x)^2+(x+6)^2$

$68=x^2+x^2+12x+36$ $[\because (a+b)^2=a^2+2ab+b^2]$

Subtract 68 from both sides.

$0=2x^2+12x+36-68$

$0=2x^2+12x-32$

$0=2(x^2+6x-16)$

Divide both sides by 2.

$x^2+6x-16=0$

Splitting the middle term, we get

$x^2+8x-2x-16=0$

$x(x+8)-2(x+8)=0$

$(x+8)(x-2)=0$

$x=-8,2$

Side cannot be negative, so x=2 only.

Now,

$AC=x+6$

$AC=2+6$

$AC=8$

Therefore, the length of AC is 8 units.

6 0

3 years ago

An underwater robot takes a picture at an elevation of -8 5/12m relative to sea level. What is the robot’s elevation expressed s

lana66690 [7]

The value of the expression to the nearest tans is -8.4

<h3>What is rounding a number?</h3>

Adjusting a number's digits so that it produces an approximation of a result is known as rounding

The given expression is -8 (5/12).

Rewrite the expression:

-8 (5/12)

= - 101/12

= - 8.4

Hence, the value of the expression to the nearest tans is -8.4

Learn more about rounding a number:

brainly.com/question/28562556

#SPJ1

6 0

2 years ago

How can you use graphing to determine whether (5,2) is a solution to the system of inequalities

Kisachek [45]

Answer:

You can use graphing to determing whether (5, 2) is a solution to the system of inequalities by creating a line going from the origin (0,0) and bring the line to (5, 2). Using this, you can find the x & y intercept, slope, etc.

Step-by-step explanation:

8 0

3 years ago