The absolute value of -2.65 is positive 2.65
therefore the answer is D. 2.6 and 2.7
Answer:
(x,y) = (3, 1/2)
Step-by-step explanation:
This pair of linear equations may be solved simultaneously by using the elimination method. This will involve ensuring that the coefficient of one of the unknown variables is the same in both equations..
To solve this, add the equations;
x + 2x + 2y - 2y = 4 + 5
3x = 9
x = 3
substitute the value of x into the first equation,
3 + 2y = 4
2y = 4 -3
2y = 1
y = 1/2
What we Know: 3 box have some counters. There are 63 counters when they are all combined.
A and B counters = 36
The difference between A and C is 10.
Since we already know A and B we can subtract them from 63 to get C
C= 63- 36 = 27
Now we have to find A by looking for what number gives us the difference of 10 when subtracted from C.
36 = 18+ 18 or 19+ 17
18 and 18 wont work because it does not give us the difference of 10.
So A = 17 counters and B = 19 counters.
Answer:
The first one is 52°
The second one is 52°
The third one is 128°
Step by step Explanation
1 is 128°, so 4 is also 128°. 128 + 128 is 256°, the final number we have to get to is 360°, so subtract 256 from 360, which would be 104, and divide that by two to get 52°, so all of the angles would add up to 360°.
