Mathematics (HA/GEP) Power Code 2 There is a total of 2950 mangoes and guavas in a supermarkel. \( 40 \% \) of the number of guavas is 80 more than \( \frac{1}{3} \) of the number of mangoes. How many mangoes are there in the supermarket?

Show that If \( x^{2}-2 x<5 \) then \( x-1< \)

275. Використовуючи властивості віднімання, спрости вираз: \( \begin{array}{ll}\text { 1) }(37+a)-12 ; & \text { 2) }(b+415)-300 ; \\ \text { 3) } 42-(x+13) ; & \text { 4) } 517-(412+y)\end{array} \)

The sum of the first three terms of an arithmetic sequence is 15 and their product is 80. Determine the first threc terms.

9. Malged the subject of the relation \( w=M \sqrt{\frac{\left(D^{2}+d^{2}\right)}{2 d^{2}}} \)

Make \( d \) the subject of the relation in \[ W=M \sqrt{\frac{\left(D^{2}+d^{2}\right)}{2 d^{2}}} \]