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.

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.