Another Question I Dont Understand. An Explanation Would Be Awesome.

John eats 2/5 of an apple pie and then jia eats a third of what left. what fraction of the pie is left after both of them eat?

Fudgin [204]

Answer:

Step-by-step explanation:

1-1-1-1-1 = 5 apple pies

Divide the apple pie into 5 pieces

Then you take away 2 out of the 5 pieces = 3 pies left

Then you take one pie (1/3rd) from the 3 pies left = 2

Answer is 2

8 0

3 years ago

Plzzz help

dmitriy555 [2]

Answer: Most likely the answer is D.

Step-by-step explanation:

since its the only equation that could go into the negatives if 2 is being multiplied it is most likely d

5 0

3 years ago

Christy draws 3 cards from the deck one at a time without replacement. What is the probability of selecting the cards in the ord

Inga [223]

Start with a deck of 52 cards. Draw 1 card. Probability of drawing a diamond first:

$\dfrac{\binom{13}1}{\binom{52}1}$

Now draw another single card from the deck, which now contains 51 cards. Probability of drawing a spade:

$\dfrac{\binom{13}1}{\binom{51}1}$

Draw 1 last card. The deck has 50 cards left, and 12 of these are diamonds. Probability of drawing a diamond:

$\dfrac{\binom{12}1}{\binom{50}1}$

So the probability of drawing a diamond, then a spade, then another diamond is

$\dfrac{\binom{13}1}{\binom{52}1}\cdot\dfrac{\binom{13}1}{\binom{51}1}\cdot\dfrac{\binom{12}1}{\binom{50}1}=\dfrac{13}{850}$

5 0

4 years ago

What is the equation, in slope-intercept form, of the line that is perpendicular to the given line and passes through the point

kiruha [24]

This is going to be an long answer, so I'm putting the answer first. y=3x-7

First, you have to find the equation of the line given. You can use point slope form for that. You can see that the slope is -1/3, and it goes through (2,2). So, the equation would be
y-2=-1/3(x-2)
Which simplifies to
y=-1/3x+8/3

Now, we can get on to finding the actual answer. The slope of a line perpendicular would be the negative reciprocal of the original slope. That just means you flip it and multiply it by -1. So, the slope of the new line is 3. Now you can use point slope form again and make an equation, which is
y+1=3(x-2)
Which simplifies to
y=3x-7

Please don't ask me why the slope is the negative reciprocal, or how they came up with the formula for the point slope form. I DON'T KNOW. If you want to know so bad you would give up chick-fil-A for the rest of your life, there's always google.

5 0

3 years ago

Read 2 more answers

What’s the area and the perimeter and of the triangle?

asambeis [7]

Answer:

Area = 3.3998

Perimeter = 2.9

Step-by-step explanation:

A method for calculating the area of a triangle when you know the lengths of all three sides.

Let a,b,c be the lengths of the sides of a triangle. The area is given by:

Area = √ p ( p − a ) ( p − b ) ( p − c )

where p is half the perimeter, or

a + b + c / 2

p = 1.7 + 1.7 + 2.4 / 2 = 5.8 / 2 = 2.9

a = Area = 3.3998

Heron was one of the great mathematicians of antiquity and came up with this formula sometime in the first century BC, although it may have been known earlier. He also extended it to the area of quadrilaterals and higher-order polygons.

8 0

2 years ago