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There are 30 students in Mrs. Martinez's class. 1/5 of the class has an Android cell phone. 1/2of the class has an iPhone. The rest of the students do not have a cell phone. How many students in Mrs. Martinez's
answered
Feb 21, 2021
Mathematics
high-school
3
votes
183k
views
Find f(-3) if f(x) = x•x
answered
Feb 14, 2021
Mathematics
college
4
votes
140k
views
How much pure acid should be mixed with 4 gallons of a 60% acid solution in order to get an 80% acid solution
answered
Sep 24, 2020
Mathematics
middle-school
4
votes
102k
views
1. The specific heat capacity of iron is 0.461 J g–1 K–1 and that of titanium is 0.544 J g–1 K–1. A sample consisting of a mixture of 10.0 g Fe and 10.0 g Ti at 100.0 ºC loses 200. J of heat to the environment.
answered
Sep 23, 2020
Chemistry
high-school
6
votes
86.0k
views
Need help with this math problem
answered
May 8, 2020
Mathematics
middle-school
4
votes
141k
views
How have new technologies helped scientists determine the age of Earth?
answered
May 5, 2020
Biology
middle-school
7
votes
137k
views
If points F and G are contained in a plane, then <-FG-> is entirely contained in that plane True or false?
answered
Mar 24, 2020
Mathematics
middle-school
3
votes
10.9k
views
the average surface temperature on jupiter is -162. the average surface temperature on saturn is 46 less than on jupiter. what is the average surface temperature on saturn?
answered
Feb 13, 2020
Mathematics
middle-school
3
votes
11.7k
views
20. How do enzymes help digestion?
answered
Jul 20, 2019
Chemistry
middle-school
7
votes
26.5k
views
Julie made $22,$55,$38 and $25 babysitting.How much did she make babysitting
answered
Apr 20, 2019
Mathematics
middle-school
0
votes
108k
views
What is the scientist's next step, if the experiment shows that the scientist's hypothesis is false? (4 points) Change the data to make the hypothesis look true. Ignore the data and report the hypothesis
answered
Apr 16, 2019
Chemistry
middle-school
3
votes
153k
views
a bus accelerates at -0.5 m/s^2 for 12.5 seconds if the bus had an initial speed of 31 /s what is its new speed
answered
Feb 21, 2019
Physics
high-school
2
votes
115k
views
Select all that apply question! See picture
answered
Feb 12, 2019
Mathematics
middle-school
2
votes
226k
views
What nickname is given to the cattedrale di Santa Maria del fiore
answered
Oct 15, 2018
History
high-school
3
votes
98.8k
views
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