X=3
y=5
You have to cancel out either the x values or the y values (I chose y). You multiply both equations by particular numbers so either the x values or y values can be equal to each other, as well as positive or negative to each other. I multiplied -7y by 4 and 4y by 7, and got -28y and 28y. I then canceled those out. The numbers you multiply by also affects the rest of the equations, so I ended up with 48x=4 and -35x=35. After that, you combine like terms, which results in 13x=39. You divide 13 by both sides and you end up with x=3. To find y, all you have to do is plug in the x value to one of the equations, then solve for y. I resulted in y=5.
Hope this helped ^_^
Answer:
For questions 1 the answer is 5.567 x 10^6 and for 2 the answer is 3.67 x 10^9
Step-by-step explanation:
Answer:
C. All rectangles are quadrilaterals.
Step-by-step explanation:
A quadrilateral is defined as a closed shape with four sides and angles. Therefore, a rectangle is a quadrilateral. A quadrilateral is the largest group of organization out of everything listed, so C must be correct because it is the only answer to sort a smaller group into a larger one.
3x3 -4= 5 5(-1)= -5 -5(-4)= 20
Step-by-step explanation:
- Data density = Data capacity / surface area
<u>Use the formula to find the answer:</u>
1.
2.
Note. the numbers above are rounded
