Solve the system using substitution
...
![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, 22.06.2019 02:20
The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 02:40
Which situation is an example of an observational study?
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 05:30
The figure shows the front of a building in the shape of a trapezoid. what is the area of this trapezoid? 102 ft² 132 ft² 168 ft² 204 ft²
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 06:00
David pays a 20% income tax on his $2,100 salary. how many dollars is the tax? show work
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 29.09.2019 16:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 29.09.2019 16:30
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 29.09.2019 16:30
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 29.09.2019 16:30
![question](/tpl/images/cats/geografiya.png)
Geography, 29.09.2019 16:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 29.09.2019 16:30
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 29.09.2019 16:30
![question](/tpl/images/cats/himiya.png)
Chemistry, 29.09.2019 16:30