Answer:
yeah sure i got you, whats the question?
Step-by-step explanation:
Answer:
4y = 3
Step-by-step explanation:
To subtract the 2nd equation from the first, negate all three of the second equation terms: 3x + 2y = -4
and then add (combine) this result to (with) the first equation:
-3x + 2y = 7
3x +2y = -4
----------------------
4y = 3 (this is the desired result))
Answer:
12427
Step-by-step explanation:
<span>x = 4
Given the description of the triangles, you have 2 similar right triangles. The smaller triangle has a height of 20 and a base of 3x, while the larger has a height of (20+8) = 28 and a base of 4x + 2. We wish to determine the value of x. Since the triangles are similar, the ratio of corresponding sides will be a constant. So:
20/28 = (3x)/(4x+2)
(4x+2)20/28 = (3x)
(20/28)*4x+(20/28)*2 = (3x)
(80/28)*x+(40/28) = (3x)
(20/7)*x + 4/7 = 3x
4/7 = 3x - (20/7)*x
4/7 = (21/7)x - (20/7)*x
4/7 = x/7
4 = x
So the value of x is 4.</span>
Answer:
3.2
Step-by-step explanation:
Make an equation!
10=2x+3.6
isolate the variable:
6.4=2x
divide by 2
3.2=x
i hope this helps!