#9RISE WP-Video1of2
Math
Hi class, this is miss champagne, and I'm going to teach you rise war problem number 9. Back to school shopping. It says, in order to get ready for the new school year, misses bender took her three children shopping. Edward selected a jacket that costs $48 and 78 cents, his sister Stephanie found a pair of shoes. Four, $63 and 58 cents that she really liked. Devin thought that was a lot to spend on one pair of shoes. He's selected two pairs of jeans. Misses bender noticed that the total cost of the items before tax was exactly $155. How much did one pair of Devin's jeans cost? Okay? So the first thing that we always do is Q which stands for to write a question. So the question asked was. How much did one pair of Devin's jeans cost? So that is what we're gonna write down under Q. How much did one pair of Devin's jeans cost? The second thing that we do is K, what do we know that statement in the problem? So let's go back to the beginning. And let's find out all the clues in order to get rid of the school year, misses bender took her three children, shopping. Well, that's the first thing that I would note. There are three children. Edward, selected a jacket that costs $48 and 78 cents. So I'm gonna put Edward. Jacket. 48, let's make sure 48 78, $48, and 78 cents. Okay. Stephanie found a pair of shoes for $63 and 58 cents. So Stephanie shoes, and I'll write what I remember for a $63. And 58 cents. Stephanie. Shoes. And then we have Devin. With two pairs of jeans. And how much it is called. Devin thought that was a lot to spend on one pair of shoes. He selected two pairs of jeans. Misses bender noticed that the total cost of the islands before tax was a $155. How much did one pair of Devon's jeans cost? Okay, so we don't know how many two pairs of Devon jeans cost. What can we figure out from my brain? I can figure out that there are one, two, three, four items, I can figure out that four items will add up. Two. 100 $55. So my picture with numbers, I'm going to draw. One. Two, three. Four, equal to $155. Another thing that I can infer is that. Can I infer that. I want to say that both of Devin's genes should cost the same amount. Because they didn't say that they cause different amounts, so I'm assuming that both payers of genes cost the same amount. Because they didn't say anything different. All right, so let's go back here to the picture what numbers. So we have one, two, three, four items. So Edward got one item and Edward's item was 48 .78. Stephanie got one item. And her shoes were 63. 58. Devin got two pairs of jeans. Okay. And we don't know how much it comes. So I'm going to take one 55, and I'm going to work backwards and subtract. Work backwards and subtract.