Answer:
Fred is 28 yrs old. Nathalie is 12yrs old
Step-by-step explanation:
Let Nathalie's age be x
Let Fred's age be a
x+a=40 yrs•••••1
4x+a=76yrs•••••2
a=40-x
Substitute a for 40-x in equation (2)
4x+40-x=76
3x=76-40
3x=36
x=12
a=40-12
a=28
Answer:
72 cm³
Step-by-step explanation:
Volume of a pyramid = Area of base * height / 3
= 3 * 6 * 12/3 = 72 cm³
9514 1404 393
Answer:
(C) 0.27 × 9 = 2.43
Step-by-step explanation:
Each colored section is 27 small squares, so is 27/100 = 0.27 of the whole. There are 9 colored sections, together totalling 2 wholes plus 43 small squares, or 2.43.
The equation this represents could be ...
0.27 × 9 = 2.43 . . . . . matches choice C
Answer: 3/10 bucket will fill the barrel completely
Step-by-step explanation: If 1/5 of the bucket is 2/3 then we want to find 1/3 of 1/5 and multiply it by 3 to find the whole of the barrell 3/3 so 1/5 divided by 2 is 1/10 and multiplied by 3 is 3/10. In math form its 1/5=.2 so .2 divided by 2 is .1 and multiplied by 3 is .3 which also equals 3/10