Question

7. Художник приобрел в багетной мастерской 8 рам для своих картин, что составило 40% от нужного ему количества. Сколько еще рам нужно купить художнику?

Answer 1

8 рам - 40%
х рам - 100%
х=20(т.е. ему нужно в общем 20 рам)
Он купил 8, т.е. осталось докупить 20-8=12 рам.

Answer 2

Calculation of Additional Frames Needed

To calculate the number of additional frames the artist needs to buy, we can use the information provided. The artist purchased 8 frames, which represents 40% of the total number of frames needed. We need to find the remaining 60% of frames that the artist still needs to buy.

Let's assume that the total number of frames needed is represented by "x". According to the given information, the artist has already purchased 8 frames, which is 40% of the total. Therefore, we can set up the following equation:

8 = 0.4x

To find the value of "x", we can solve this equation for "x":

x = 8 / 0.4

Calculating this, we find:

x = 20

Therefore, the artist still needs to buy 20 additional frames.