3 years ago

Hurry please ... LOOOOOLLL

Mathematics

1 answer:

sineoko [7]3 years ago

6 0

Answer:

12 pounds of grapes cost $18.00

Step-by-step explanation:

The point, (12, 18) as plotted on the graph indicates that 12 pounds of grapes costs $18.

From the graph, we see that when x (pounds) = 12, y (cost) = 18.00.

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Find two numbers whose sum is 64 and whose difference is 42

vovangra [49]

These numbers are "a" and "b".
Sum is 64, so a+b=64
Difference is 42 so a-b=42
So you've got:
$+\begin{cases} a+b=64 \\ a-b=42\end{cases} \\ \overline{, \quad2a \quad \ = \ 106} \qquad /:2 \\ a=53$
When a+b=64 and a=53 you've got:
53+b=64
b=11

So these numbers is 53 and 11.

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