Answer:
89
Step-by-step explanation:
1. She spent a total of 23 + 30 + 16 = 69 dollars.
2. That means she had at least 69 dollars to spend. But if it were 69 dollars, that would mean she had 0 remaining dollars because she spent it all.
3. But she had 20 dollars left after she spent the 69 dollars.
4. So that means she had 89 dollars before making the purchase
Answer:
-2, 1, 2, 3, 4
Step-by-step explanation:
The domain is the x values of the graph.
Answer:
Domain: (0, infinity)
Range: ( negative infinity, positive infinity)
Step-by-step explanation:
Domain is determined by the x values (left to right)
Range is determined by the y values (low to high)
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The total pages in the book are 510.
Step-by-step explanation:
Lets say, the total pages are x
Mo read the book with following proportion.
Monday: 2/5.x
Pages left: 1.x - 2/5.x = 3/5.x
Tuesday: 1/2.x of 3/5.x = (1/2.x) . (3/5.x) = 3/10.x
Pages left: 3/5.x - 3/10.x = 3/10.x
Wednesday: 5/9.x of 3/10.x = (5/9.x) . (3/10.x) = 1/6.x
Thursday : ?
Lets say the total proportion is 1. The proportion of book read on Thursday can be calculated as:
1.x - 2/5.x - 3/10.x - 1/6.x = 2/15.x
Also given, Mo read 68 more pages on Tuesday than Wednesday.
Therefore,
3/10.x - 1/6.x = 68
2/15x = 68
x = 510
Therefore, the total pages in the book are 510.
