Answer:
72.5
Step-by-step explanation:
5x5+2x+10=180
1.PEMDAS
2.5x5=25
3.25+10=35
4.Try to get everything away from X so move 35 to other side by subtracting since its a positive number and if negative number (ex. -35) u add, 180-35=145
5. and divide 145 by 2 than finally x is alone which comes out to x=72.5
If the school spent $1,137.50 and wants to make a $1500 profit, then they need to make $2637.50 to earn back what they spent and make a profit. So, if you divide $2637.50 by 350, the number of books they purchased, you get the amount each book would have to cost to make this much money. The lowest price they could sell them for is $7.54.
143
because the equation would be 11x+x=156. so if you add like terms it would be 12x=156. then 156/12 is 13. 13 is how many miles Early biked.
so dory biked 11 times as many miles, so you would solve 13(Early's miles) times 11(Dory's miles). 13x11=143
so dory biked 143 miles last month
