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3 years ago

12 1/2 of what amount is $10.40?

Mathematics

2 answers:

LuckyWell [14K]3 years ago

8 0

Let x = what amount

Rewrite 12 1/2 as 25/2.

(25/2)(x) = 10.40

Take it from here. Solve the equation for x.

Soloha48 [4]3 years ago

8 0

Of = multiply
what = x
is means =

(12.5)x = 10.4
x = 10.4/12.5 = 104/125

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the angle of elevation to the sun is 24°. what is the length of the shadow cast by a person 1.82 m tall?

laiz [17]

Answer:

4.089

Step-by-step explanation:

24 degree is the Angle of elevation. SO we can use in this triangle Tan.

So tan 24 = AB/BC because tan is the ratio of height over adjacent.

So we can say it is tan 24 = (1.82)/BC

So BC = (1.82)/tan(24) = 4.089m

BC is representing shadow of men. So shadow of men is 4.089m

5 0

4 years ago

In a school 3/5are boys. In a day 1/6 were absent and 250 boys were present. How many girls are in that school

marysya [2.9K]

Answer:

There are 200 girls in that school

Step-by-step explanation:

The correct and complete question is as folly;

In a school 3/5 pupils are boys. One day 1/6 of the boys were absent when 250 boys were present. How many girls are in the school?

SOLUTION

Let the total number of students in the school be x students

Since 3/5 are boys , then the number of girls in the school would be 1-3/5 = 2/5

The number of boys are 3/5 * x = 3x/5

The number of girls are 2/5 * x = 2x/5

Now on a particular day, 1/6 of the boys were absent and 250 boys were present.

What this means is that the fraction of boys present is 1-1/6 = 5/6

Now, 5/6 of the total boys population were present.

Mathematically;

5/6 * 3x/5 = 250

3x/6 = 250

x/2 = 250

x = 2 * 250 = 500

So there are 590 students in the school.

The number of girls in the school is ;

2x/5 = 2/5 * 500 = 200 girls

6 0

3 years ago

I need help 　　　　　°　　　•　　.°•　　　 ✯

Lostsunrise [7]

Answer:

2- 1/3 (9/4 x 12)

Explanation: *just a guess btw*

3 0

3 years ago

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Plz help number 3d ( can you pls show ur steps of how you got the answer)

denis23 [38]

Answer:

$(\frac{13}{16},-\frac{3}{8})$

Step-by-step explanation:

Midpoint of a segment with the given endpoints $(x_1,y_1)$ and $(x_2,y_2)$ is defined by,

$(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

In this question endpoints of the segment are,

$Q(-\frac{3}{8},\frac{1}{8})$ and $R(2,-\frac{7}{8})$

Coordinates of the midpoint will be,

$(\frac{-\frac{3}{8}+2}{2},\frac{\frac{1}{8}-\frac{7}{8}}{2})$

= $(\frac{13}{16},-\frac{3}{8})$

Therefore, coordinates of the midpoint are $(\frac{13}{16},-\frac{3}{8})$ .

8 0

3 years ago

What is the sample space when a coin is tossed twice?

Oksana_A [137]

Sample Space = {HH,HT,TH,TT} - Hope this helps!

8 0

4 years ago

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