The graph represents Chloe’s total saving over seven weeks. Is it true or false that by the end of week seven Chloe’s total savings were 175 dollars?
As the graph represents Chloe’s total savings, the point circled shows how much she’d saved after seven weeks. This means that her total savings were 175 dollars. So the statement is true.
We can split Chloe’s savings into individual weeks by looking at how far the graph rises. In week one, she saved 25 dollars. In week two, her savings went from 25 to 50 dollars. Therefore, she saved another 25 dollars. In week three, Chloe didn’t save any money as her total savings remained at 50 dollars. In week four, her savings rose by 25 dollars, from 50 to 75. In week five, they rose from 75 to 100 dollars. So she saved another 25 dollars. In week six, Chloe made her biggest saving 75 dollars, as her total went from 100 dollars to 175 dollars. And finally, in week seven, Chloe didn’t make any savings as her total remains constant at 175 dollars.
Adding these values 25, 25, 25, 25, and 75 gives a total of 175 dollars, confirming that the initial statement was true.