There are two things to solve for; the number of bicycles: b and tricycles: t. Solving for two things requires two equations. You are given enough information to set up:
an equation for number of cycles
b + t = 50
an equation for number of wheels
2b + 3t = 111
Now you can use substitution or elimination to solve for the first variable.
I'll use substitution.
b + t = 50 then b = 50 - t
So sub in (50 - t) for b in the second equation. This combines the two equations into one and makes it in terms of only one variable.
2(50 - t) + 3t = 111
100 - 2t + 3t = 111
100 + t = 111
t = 111 - 100
t = 11
Now use this in either of the equations to find the other variable, b.
11 + b = 50
b = 50 - 11
b = 39
Answer:
The answer is 4th point
Step-by-step explanation:
√5(10 - 4√2)
= (√5×10)-(√5×4√2)
= 10√5 - 4√10
If you divide both by 11, you get 7/9. 7/9 is the fraction in simplest form.
Cage.....dog travel kit..... shelter.....pound.... it really depends on what you mean by dog kennel.
Answer:(√x+√2)²=x+√x*2+2
(√x-2*√2)*(√x+2*√2)=x-8
Step-by-step explanation:
<h2>(√x+√2)²= √x²+2*√x*√2+√2²²=x+√x*2+2</h2><h2 /><h2>(√x-2*√2)*(√x+2*√2)=(√x)²-(2√2)²=x-8</h2>
