Water flows in a 14 inch diameter pipe from point a located at an elevation of 200 ft to point b located at an elevation of 205 ft. if the pressure at point a is 53 psi and the headloss between the two points is 1.9 feet, what is the pressure at b in psi?

answer: using ratios to compare (6.rp.1)

show transcript

objectives

use ratios to compare two numbers or amounts.

write ratios using word phrases and symbols.

write ratios in reduced form.

use words to explain ratio relationships.

vocabulary

ratio a comparison of two numbers or amounts

reduced form a ratio is in reduced form when the only common factor of its two numbers (or terms) is 1, also known as reduced form

vocab arcade

vocabulary at work

here are some special words you will see in this lesson.

ratio

a ratio is a comparison of two numbers or amounts.

one type of ratio compares parts with parts.

there are 2 cans of blue paint.

there is 1 can of yellow paint.

the ratio 2 to 1 compares the number of cans of blue paint with the number of cans of yellow paint.

the ratio shows that there are 2 times as many blue cans as yellow cans.

another type of ratio compares one part of a whole with the whole.

there are 2 cans of blue paint.

there are 3 cans of paint altogether.

the ratio 2 to 3 compares the number of cans of blue paint with the total number of cans of paint.

the ratio shows that 2 cans out of 3 are blue.

you can write any ratio in three different ways.

here is the ratio of apples to oranges with the word “to,” with a colon, and as a fraction. no matter what form you use, read the ratio as “2 to 5.”

in the ratio of apples to oranges, the first term tells the number of apples. the number 2 is the first term. the second term tells the number of oranges. the number 5 is the second term.

reduced form

a ratio is in reduced form when the only common factor of its two numbers (or terms) is 1. this is also known as simplest form.

the reduced form of the ratio   is .

a ratio in reduced form is reduced to lowest terms. you should always check to make sure that a ratio is in reduced form.

simplify a ratio the same way that you simplify a fraction: divide both terms by their greatest common factor (gcf).

explanation: sorry had 2 heheheheeh

show the wavelengths of a wave. show the crests of a wave.