Answer:
34.5
Step-by-step explanation:
Add up all the numbers. 10+8+6+5=29. Then divide 29 by 100. Then multiply 10x What you got from 100/29. Sorry if thats confusing hope that helps!
Answer:
-5
Step-by-step explanation:
ab = dc
x+15= 3x+25
2x = -10
x = -5
substituting in ad and bc
-10+18 = 8
3-(-5)=3+5=8
X^2 -15x +54 = 0 for you can factor it easy just you need getting two numbers with sum equal -15 and product equal 54
-15= (-9)+(-6) and (-9)*(-6)= -54 in this way will get
x^2 -15x +54 = (x-6)(x-9)
hope helped
I can't see it,maybe it's because I'm on moible