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3 years ago

15

What is the result of 2 divided by StartFraction 4 Over 10 EndFraction? A number line going from 0 to 2. One-fifth Four-fifths 5

20

2 answers:

mixer [17]3 years ago

8 0

5

You just divide it normally

omeli [17]3 years ago

5 0

Answer:

5

Step-by-step explanation:

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I am confusion, can someone help me?

Genrish500 [490]

450 >_ 750 - 70x

450 >_ 750 - 70x
(subtract 750 on both sides)
-300 >_ -70x
(divide by -70 to get x alone, then flip the inequality sign)
4 2/7 <_ x
(round up to 5, you can’t have 2/7 of a person)

at least 5 people have to get off

hope this helped!

3 0

2 years ago

Show that sin (x + pi) = -sin x.

Lunna [17]

Answer:

The answer in the procedure

Step-by-step explanation:

we know that

$sin(A + B) = sin A cos B + cos A sin B$

In this problem we have

$sin(x + \pi)=sin (x)cos(\pi) + cos(x)sin(\pi)$

Remember that

$sin(\pi) = 0$

$cos(\pi) = -1$

substitute

$sin(x + \pi) = sin(x)(-1) + cos(x)(0)$

$sin(x + \pi) = -sin(x)$

4 0

2 years ago

Can someone help 2d + 1/5 = 3/5

bearhunter [10]

$2d+\dfrac{1}{5}=\dfrac{3}{5}\ \ \ \ \ |subtract\ \dfrac{1}{5}\ from\ both\ sides\\\\2d=\dfrac{2}{5}\ \ \ \ |divide\ both\ sides\ by\ 2\\\\\boxed{d=\frac{1}{5}}$

8 0

2 years ago

A pancake recipe calls for 1/4 of a cup of powdered milk and three have cups of whole wheat flour for each batch of pancakes. If

DedPeter [7]

1/4•4= 1 cup of powdered milk
3•4= 12 cups of whole wheat flour

4 0

3 years ago

If y is directly proportional to x and y = 108 when x=9, what is the value of y when x =8 and x=7

natka813 [3]

Y ∝x
y= kx
substitute x and y values
108= k x 9
because you want to find k on its own you divide both sides by 9
108 ÷ 9 = 12
So k = 9
Now that we have 12 we can use this to find y
y = 12 x 8
You just simply times it because that's what y is
so y= 96 when x=8
To find y when x= 7 you do 7 x 12 which is 84
So y= 84 when x= 7

7 0

2 years ago