![subject](/tpl/images/cats/mat.png)
Mathematics, 25.09.2019 07:30 lexidonoghue122
Jacob has several babysitting jobs. on one job, he earned $10 an hour plus an extra $20 since there were 3 children. on the other job, he earned $15 an hour
he earned the same amount of money at both jobs. how many hours did he work and how many hours did he earn?
here are the equations
d= 15h
d= 10h+20
a: 2 hours,$40
b: 4 hours $60
c: 3 hours $45
d: 5 hours $75
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 14:30
Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 14:30
F(x)= 1/x-4, g(x)=4x+1/x a. use composition to prove whether or not the functions are inverses of each other. b. express the domain of the compositions using interval notation.
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 14:40
Write the sentence as an equation. 6 fewer than the quantity 140 times j equals 104
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:00
Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.
Answers: 2
You know the right answer?
Jacob has several babysitting jobs. on one job, he earned $10 an hour plus an extra $20 since there...
Questions
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 18.11.2020 01:10
![question](/tpl/images/cats/himiya.png)
Chemistry, 18.11.2020 01:10
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.11.2020 01:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.11.2020 01:20
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.11.2020 01:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.11.2020 01:20
![question](/tpl/images/cats/mat.png)
Mathematics, 18.11.2020 01:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
Physics, 18.11.2020 01:20
![question](/tpl/images/cats/mat.png)
Mathematics, 18.11.2020 01:20
![question](/tpl/images/cats/mat.png)
Mathematics, 18.11.2020 01:20
![question](/tpl/images/cats/mat.png)
Mathematics, 18.11.2020 01:20
![question](/tpl/images/cats/mat.png)