Answer: y = 1 & x = 3
Step 1: Multiply the first equation by -2 so that the equations cancel out the x
-2 ( x + 2y ) = 5
Step 2: Simplify
-2x -4y = - 10
Step 3: Add equations
(-2x - 4y = -10)
+ (2x + 6y = 12)
————————-
2y = 2
Step 4: Simply by dividing both sides by 2
y = 1
Step 5: Substitute y into either equation & simply
x + 2y = 5
x + 2(1) = 5
x+2=5
x=3
Answer:
459
Step-by-step explanation:
2 1/4 = 18/8 = 18 ft
3 3/16 = 25.5/8 = 25.5 ft
18 * 25.5 = 459
Answer:
Attached
Step-by-step explanation:
Is this what you expect?
All you need to do is plug 19 in for x and solve.
f(19) = 3/(19+2) - sqrt(19-3) = 1/7 - sqrt(16)= 1/7 - 4
The answer is -3.8571 or as a fraction -27/7
Answer:
EF = 6.6
Step-by-step explanation:
Since ABCD is similar to EFGH, then EH is similar to AD. So, we can solve by first dividing 12 by 2 (EH by AD). The quotient of this is 6. This tells us that quadrilateral EFGH is 6 times larger than quadrilateral ABCD, since they are similar. So, with this and the measurement of AB (which is similar to EF), we can now solve for EF. We simply multiply 1.1 (the measurement of AB) by 6 (how many times larger EFGH is compared to ABCD). The product of this is 6.6, our final answer.