All categories

3 years ago

3/4 - 1/3 plz help thanks

2 answers:

7 0

The answer is 5/12 because 3/4 u multiply numerator and denominator by 3 and u get 9/12 1/3 u get 4/12 because u add both denomator and numerator multiply by 3 and 9/12-4/12 is 5/12

galben [10]3 years ago

4 0

3/4 - 1/3
Multiply so that the numbers under the lines are the same:
9/12 - 4/12 ---> 5/12
You cannot make it any smaller. So it stays like that

You might be interested in

Lacey deposited $30 in a savings account earning 10% interest, compounded annually.

Brut [27]

Answer:

$9.93

Step-by-step explanation:

Lacey would earn $9.93 in interest

6 0

3 years ago

Factor completely 49x2 − 9.

julia-pushkina [17]

Answer: (7x + 3)(7x -3)

Step-by-step explanation:

3 0

3 years ago

I will mark the correct answer as brainliest! A piece of fabric 180 inches long is cut in 2 pieces such that 3 times the larger

Ulleksa [173]

Let one piece be x inches long then the other piece is 180-x inches long.

3x > 4 (180-x)
3x > 720 - 4x
7x > 720

x > 103 6/7 ins

the 2 pieces could be 107 inches and 180-107 = 73 inches

5 0

3 years ago

An airplane pilot is fertilizing a field. The height y in feet of the fertilizer t seconds after it is dropped is modeled by y(t

zheka24 [161]

Answer:

About 360.178 feet

Step-by-step explanation:

So we want the vertical distance between the fertilizer and the ground to be 0.

This going to be about the time the pilot has dropped it

So we first need to find when y is 0.

$0=-16t^2-3t+300$

We are going to use the quadratic formula to solve for t:

$a=-16$

$b=-3$

$c=300$

The quadratic formula is:

$t=\frac{-b \pm \sqrt{b^2-4ac}}{2a}$

$t=\frac{3 \pm \sqrt{(-3)^2-4(-16)(300)}}{2(-16)}$

$t=\frac{3 \pm \sqrt{9+19200}}{-32}$

$t=\frac{3 \pm \sqrt{19209}}{-32}$

$t=\frac{3+\sqrt{19209}}{-32} \text{ or } \frac{3-\sqrt{19209}}{-32}$

$t \approx -4.424891774 \text{ or } 4.237391774$

So the pilot has released it at about 4.237391774 seconds since the fertilizer has actually hit the ground at roughly this time.

So we want to know the horizontal distance at t=4.237391774:

$85t$

$85(4.237391774)$

$360.1783008$

360.178 feet

7 0

3 years ago

REALLY NEED HELP ON THESE 3 MATH QUESTIONS!!! (20 PTS)

hammer [34]

1. x² - 6x + 8
4*2 equals 8 and if you add 4 and 2 it gives you 6
-4-2= -6
=(x-4)(x-2)

3. the answer is A
if you plug in the points into the equation y=x
y= 1/2x + 4
given point: (4,6) x=4 y=6
6= 1/2(4)+4
6=6

7 0

3 years ago