Using the graph that is included, look at the points given. For example (30, 3). There would be 30 vegetarian dishes and 3 steak dinners for a total of 33 meals. If that is plugged into the cost equation 20(30)+3(30) it would equal $690. The next point (33, 1) would cost 20(33) + 30(1) = $690 and but gives 34 meals. However, 34 vegetarian meals would only cost 20(34)=$680 and have 34 meals.

If both types of meals need to be purchased, 33 vegetarians and 1 steak. If only vegetarians are purchased, the cost is cheaper by $10.

5 0

2 years ago

On my sister's 15th birthday, she was 159 cm in height, having grown 6% since the year before. How tall was she the previous yea

Zarrin [17]

It means that her height in this year is $106\%x$ in regards to the last year, where x is her height in last year, so:

$159=106\%x$

$159=\frac{106}{100}x$

$159=\frac{53}{50}x$

$159*50=53x$

$159*50=53x$

$7950=53x$

$150=x$

8 0

2 years ago

Can zeros be written at the end of a decimal without changing the number that it represents?

mr_godi [17]

Answer: yes, zeroes are simply just a place holder to make the number easier to read

Step-by-step explanation:

7 0

2 years ago

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