Mathematics
Mathematics, 18.10.2021 19:50, kgflol5692

Exam-style question a
An alloy is made from a mix of copper and
tin. The density of copper is 8.94 grams per
cm3. The density of tin is 7.3 grams per cm.
500 cm3 of the alloy is made from 360 cm3
of copper with 140 cm3 of tin.
Work out the density of the alloy to 3 s. f.

answer
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 22:00, emadrid76
  cassidy wants to cut the yellow fabric into strips that are 0.3 yards wide. how many strips of yellow fabric can cassidy make? yellow fabric 16 yards for $108.00.
Answers: 1
image
Mathematics, 22.06.2019 00:30, nataliemoore1974
Olivia is using 160 quilt squares to make a red, yellow, and blue quilt if 25% of the quilt are red and 30% are yellow how many quilt squares are blue
Answers: 3
image
Mathematics, 22.06.2019 02:00, ballbritez
Student representatives surveyed their classmates on their preference of a school mascot for a new school. the results are shown in the table below. which pair of samples seems most representative of student preference?
Answers: 2
image
Mathematics, 22.06.2019 03:40, calibaby1220
Assume that females have pulse rates that are normally distributed with a mean of mu equals 72.0 beats per minute and a standard deviation of sigma equals 12.5 beats per minute. complete parts (a) through (c) below. a. if 1 adult female is randomly selected, find the probability that her pulse rate is between 65 beats per minute and 79 beats per minute. the probability is? b. if 16 adult females are randomly selected, find the probability that they have pulse rates with a mean between 65 beats per minute and 79 beats per minute. the probability is? c. why can the normal distribution be used in part (b), even though the sample size does not exceed 30?
Answers: 3
Do you know the correct answer?
Exam-style question a
An alloy is made from a mix of copper and
tin. The density of co...

Questions in other subjects:

Konu
Chemistry, 24.06.2021 05:50
Konu
Mathematics, 24.06.2021 05:50