MATHEMATICS
HIGH SCHOOL

Answer:

So,

1400 people in total. Though, subtract 200 for the amount of extra adults. This makes 1200. Divide that by two. You get 600

You need to add 200 to the 600 to get the amount of adults. The amount of adults on board is 800.

The amount of children on board is 600.

600 plus 800 equals 1400, it makes sense. :P

MIDDLE SCHOOL

Has 44 coins;quarters and nickels. The combined value of the coins is $7. How many quarters and nickels does he have?

Answer:

The number of nickel's coin is 20 and the number of quarter's coin is 24

Step-by-step explanation:

Let

x ----> the number of nickel's coin

y ----> the number of quarter's coin

Remember that

so

we have

----> equation A

----> equation B

Solve the system by substitution

substitute equation A in equation B

solve for y

Find the value of x

therefore

The number of nickel's coin is 20 and the number of quarter's coin is 24

COLLEGE

One cycle of a graph is also known as a ___?

Answer:

One cycle of a graph is also known as a uni-cyclic graph.

Step-by-step explanation:

MIDDLE SCHOOL

Which of the following is not a measure of central tendency

Answer:

range

Step-by-step explanation:

this is because it is asking the not central which is range.

Where is 'the following'?

(I'll Answer in comments just give detail)

MIDDLE SCHOOL

Bruce jogs from his house to the library and back again to tutor students. The distance from his house to the library is 0.28 mile. If Bruce tutored at the library 328 days last year, about how many miles did he jog?

Answer:

Bruce joged 183.68 miles in 328 days.

Step-by-step explanation:

The distance from Bruce's house to the library is 0.28 miles. Then every time Bruce jogs from his house to the library you travel 0.28 miles. And when he returns again he travels 0.28 miles again. Then on ONE DAY Bruces jogs:

2*0.28 miles= 0.56 miles

The rule of three or is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them. That is, what is intended with it is to find the fourth term of a proportion knowing the other three. Remember that proportionality is a constant relationship or ratio between different magnitudes.

If the relationship between the magnitudes is direct, that is, when one magnitude increases, so does the other, the direct rule of three must be applied. To solve a direct rule of three, the following formula must be followed:

a ⇒ b

c ⇒ x

So,

So, to determine the amount of miles trotted by Bruce for 328 days, a rule of three applies as follows: if Bruce jogged 0.56 miles in one day, how many miles did he jog in 328 days?

amount of miles= 183.68

So, Bruce joged 183.68 miles in 328 days.

0.28*2 is 0.56 and 328 times 0.56 is 183.68 mile

the answer is 183.68