To add integers with different signs, subtract the lesser absolute value from the greater absolute value. Use the sign of the integer with the greater absolute value for the sum. The following steps will be useful to find the sum of two numbers with different signs.
Answer:
C) CA=40
Step-by-step explanation:
2y/(2y+4)=(2y+6)/4y
cross multiply
8y²=4y²+20y+24
4(2y²)=4(y²+5y+6)
divide both sides by 4
2y²=y²+5y+6
y²-5y-6=0
(y-6)(y+1)=0
So the answer must be either 6 or -1. Since it can't be a negative number, it must be 6.
CA=2(6)+4+4(6)
CA=12+4+24
CA=40
HELLO EVERYONE,
TO FIND Y:
We know
a straight line makes an angle of 180
so,
180 = 119-y
180-119 = y
therefore y is
y = 59 degrees
TO FIND X:
We know,
all angles of a quadrilateral make a sum of 360,
so,
A+B+C+D = 360
HERE,
A = 131
B = 56
C = Y = 59
D = X
131 +56+59+X = 360
360 - 246 = X
X = 114 Degrees
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The answer is 21.
18 classrooms x 35 students in each classroom = 630 total students
630 total students / 30 students in each classroom = 21