Can someone tell me the answer Plz I’m struggling I’ll give brainlist and points

4. 3

5. 5

Step-by-step explanation:

Let x = number of blocks in a bag.

4.

Left side = 2 bags & 7 blocks

Right side = 1 bag & 10 blocks

The beam is balanced, so the weights of the two sides are equal.

2x + 7 = x + 10

x = 3

There are 3 blocks in a bag.

5.

Left side = 3 bags & 6 blocks

Right side = 4 bags & 1 block

The beam is balanced, so the weights of the two sides are equal.

3x + 6 = 4x + 1

-x = -5

x = 5

There are 5 blocks in a bag.

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

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