Diego can type 140 in 4 minutes

1. at this rate, how long will it take him to type 385 words?

2. how many words can he type in 15 minutes?

11 min and 525 words

Step-by-step explanation:

I put 140 words/ 4 mins and simplified it to 35 words /1 min

Doing so i plug in what was given and used cross multiply and divid :D

1. He will take 11 minutes to type 385

2. He can type 525 words in 15 minutes

Step-by-step explanation:

1. Since he can type 140 words in 4 minutes, he can type 35 words in one minute. So 385 words, if typed at 35 words per minute, would be typed in 11 minutes since 385/35=11.

2. 15 minutes times 35 words per minute is equal to 525 words.

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.

isocolese triangle

we know that the line connect a and b is the hyptonuse

so first find the hypotonuse length using the distance formula, call the length c

since it is an isocolese triangle, the lengths of the legs are the same

using pythagorean theorem,

in this case, a=b since isocolese triangle so we get

or

we can find c so we can find the distances

we know that if we draw 2 circles, each has center at a and b, and find where they intersect, we can the 2 possible locations for c

if a has center at (xa,ya) and b has center at (xb,yb), then we can solve where

and

intersect to find where they intersect

i'm not going to put an example because i have to go to class. i hope this explanation is enough