In a certain industry, about 15 percent of the workers showed some signs of ill effects due to radiation. after management had claimed that improvements had been made, 140 workers were tested and 19 experienced some ill effects due to radiation. does this results support management's claim?

This results do not support management's claim.

Step-by-step explanation:

Before the improvements, about 15 percent of the workers showed some signs of ill effects due to radiation.

Aftter the improvements, 40 workers were tested and 19 experienced some ill effects due to radiation. 19/140 = 0.1357 = 13.57% of workers reported some ill effects from radiation. This is a very small decrease from 15%, so this results do not support management's claim.

stew reads at the fastest rate of 265 words per minute.

step-by-step explanation:

it's a given that felicia reads at 260 word per minute and on connie's graph we can see that she reads 200 words per minute. since stew's table tells us that he read 795 in 3 minutes, we can divide 795 by 3 to find out how many words he reads per minute.

795/3 = 265

stew reads 265 words per minute - he reads at the fastest rate since felecia reads at 260 words per minute and connie reads at 200 words per minute.

stew (265) > felecia (260) > connie (200)

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls