So why would God answer prayers?

So why would God answer prayers? The biggest reason is that we have a relationship with God. We want to follow God. And we actually listen to what he said. In our mind, God has the right to direct us in life, and we welcome Him doing just that! When she prayed for things, it was a natural part of her relationship with God. We feel very comfortable coming to God with our needs, our concerns, and whatever issues are current in our life. Furthermore, We must be convinced, from what we read in the Holy Books (The Tora, The Bible and The Quran) that God wants us to rely on Him like that.
"For the eyes of the Lord are on the righteous and his ears are attentive to their prayer..."

So, Why Doesn't God Answer Everyone's Prayers?
It may be because they don't have a relationship with God. They may know that God exists, and they might even worship God from time to time. But those who never seem to have their prayers answered probably don't have a relationship with Him. Further, they have never received from God complete forgiveness for their sin. What does that have to do with it you ask? Here is an explanation. "Surely the arm of the Lord is not too short to save, nor his ear too dull to hear. But your iniquities have separated you from your God. Your sins have hidden his face from you, so that He will not hear.
It's pretty natural to feel that separation from God. When people begin to ask God for something, what usually takes place? They begin with, "God, I really need your help with this problem..." And then there's a pause, followed by a restart... "I realize that I'm not a perfect person, that I actually have no right to ask you for this..." There's an awareness of personal sin and failure. And the person knows that it's not just them; that God is aware of it too. There's a feeling of, "Who am I kidding?" What they may not know is how they can receive God's forgiveness for all their sin. They might not know that they can come into a relationship with God so that God will hear them. This is the foundation for God answering your prayer.
How to Pray: The Foundation

You must first begin a relationship with God.

Get Connected.
What about "Unanswered" Prayer?
Certainly people get sick, even die; financial problems are real, and all sorts of very difficult situations can come up. What then?
God tells us to give our concerns to him. Even as the situation remains dismal, Cast all your anxiety on him, because He cares for you. The circumstances may look out of control, but they aren't. When the whole world seems to be falling apart, God can keep us together. This is when a person can be very grateful that they know God. "The Lord is near. Be anxious for nothing, but in everything by prayer and supplication with thanksgiving let your requests be made known to God. And the peace of God, which surpasses all comprehension, will guard your hearts and your minds.
God may provide solutions, resolutions to the problem WAY beyond what you imagined possible.
In Summary...How to Pray

Allah asks us to take any concerns to him in prayer and he will act upon it according to his will. As we deal with difficulties we are to cast our cares on him and receive from him a peace that defies the circumstances. The basis for our hope and faith is the character of God himself. The better we know him, the more apt we are to trust him.

Sometimes things happen to you that may seem horrible, painful, and unfair at first, but in reflection you find that without overcoming those obstacles you would have never realized your potential, strength, willpower, or heart.
Illness, injury, love, lost moments of true greatness, and sheer stupidity all occur to test the limits of your soul. Without these small tests, whatever they may be, life would be like a smoothly paved straight flat road to nowhere. It would be safe and comfortable, but dull and utterly pointless.
The people you meet who affect your life, and the success and downfalls you experience, help to create who you are and who you become. Even the bad experiences can be learned from. In fact, they are sometimes the most important ones.
If someone loves you, give love back to them in whatever way you can, not only because they love you, but because in a way, they are teaching you to love and how to open your heart and eyes to things.
If someone hurts you, betrays you, or breaks your heart, forgive them, for they have helped you learn about trust and the importance of being cautious to whom you open your heart.

Make every day count. Appreciate every moment and take from those moments everything that you possibly can for you may never be able to experience it again. Talk to people that you have never talked to before, and listen to what they have to say.
Let yourself fall in love, break free, and set your sights high. Hold your head up because you have every right to. Tell yourself you are a great individual and believe in yourself, for if you don’t believe in yourself, it will be hard for others to believe in you.