Question

14.what temperature is 12 degrees lower than -3 celsius
15.In a group of 60 children,there are three times as many boys as girls.How many girls are there?
16.If x=5,calculate the value of:
2x² + x

Answer 1

14. -15 degrees celsius

15.

• Girls = 15

• Boys = 15 * 3 = 45
• Total = 15 + 45 = 60

16. 2(5)^2 + 5 = 2(25) + 5 = 50 + 5 = 55