Julius put 3 pound on one side side of scale. Abel put 35 1 ounce weight on the other side .
How many more 1 ounce weights does need. To balance the scale?

13 (1 Ounce weights)

Step-by-step explanation:

Unit of conversion: 1 Pound =16 ounce

3 Pounds = 3 x 16 =48 Ounce

Therefore:

Let the number of 1 Ounce weight needed by Abel =x

Then, to balance the scale, the expression below holds.

48=35+x

Subtract 35 from both sides

48-35=35-35+x

x=13

Abel needs 13 more 1 Ounce weights to balance the scale.

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!

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step-by-step explanation: