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3 years ago

What is the missing denominator?3/4=18/?

Mathematics

1 answer:

nekit [7.7K]3 years ago

3 0

Answer:

Step-by-step explanation:

The equations just need to be equal so you multiply 3 by 6 to get 8 and then 4 by 6 to get 24

3 / 4 = 18 / 24

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Jonas jogged up the hill at an average rate of of a mile per minute and then walked down the hill at an average rate of of a mil

Orlov [11]

Answer: option d) (1/16) (42 - x)

Explanation:

1) You forgot to include the table.

This is the table:

                            Rate              time                 distance
                               (mi / min)         (min)                   (mi)

up the hill                    1/12                x                     (1/12)x

down the hill            1/16                 42-x                     ?

2) You also forgot to include the set of answerchoices. This is it:

a) x
b) -x
c) 42 - x
d) (1/16) (42-x)

3) Solution:

The missing value is the distance of the trip down the hill.

The distance is the rate times the time, i.e.:

distance = rate * time

the rate is given as 1/16, and the time is given as 42 - x, so the distance is:

distance = (1/16) (42 - x), which is the answer.

4 0

4 years ago

Read 2 more answers

Suppose f(x)= x^2 fins the graph of f(x-1)

Gennadij [26K]

F(x)=x2,

g(x)=f(3x)=(3x)2=9x2

Now to graph y=9x2. This is a parabola (U-shape), vertex at (0, 0), symmetric aroung y axis. When x=1/3 or -1/3, then y=1.

So, try to draw the graph.

8 0

3 years ago

What is a a equivalent fraction of 20/0.64

DedPeter [7]

Answer:

31.25

Step-by-step explanation:

7 0

3 years ago

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The perimeter of this triangle is 25 units. An angle bisector divides one side of the triangle into lengths of 2 and 3. Find the

grin007 [14]

Answer:

8 and 12

Step-by-step explanation:

Sides on one side of the angle bisector are proportional to those on the other side. In the attached figure, that means

AC/AB = CD/BD = 2/3

The perimeter is the sum of the side lengths, so is ...

25 = AB + BC + AC

25 = AB + 5 + (2/3)AB . . . . . . substituting AC = 2/3·AB. BC = 2+3 = 5.

20 = 5/3·AB

12 = AB

AC = 2/3·12 = 8

_____

<em>Alternate solution</em>

The sum of ratio units is 2+3 = 5, so each one must stand for 25/5 = 5 units of length.

That is, the total of lengths on one side of the angle bisector (AC+CD) is 2·5 = 10 units, and the total of lengths on the other side (AB+BD) is 3·5 = 15 units. Since 2 of the 10 units are in the segment being divided (CD), the other 8 must be in that side of the triangle (AC).

Likewise, 3 of the 15 units are in the segment being divided (BD), so the other 12 units are in that side of the triangle (AB).

The remaining sides of the triangle are AB=12 and AC=8.

7 0

3 years ago

The owner of a bakery wants to know whether customers have any preference among 5 different flavors of muffin. A sample of 200 c

Troyanec [42]

So,, there are 5 different flavors. A total of 180 people were asked. Hence, the hypothesis that there is no significant difference is that every flavor gets 180/5=36 flavors. x^2= $\sum{\frac{(x_i)^2}{m_i}}-n$ . In this case, mi is the proportion of the hypothesis, thus 36, n=180 and xi is the number of actual observations. Substituting the known quantities, we get that x^2=9. The degree of association is given by $\sqrt{X^2}/ \sqrt{N(n-1)}$ . This yields around 0.10, much higher than our limit.

8 0

3 years ago