Answer:
90 cm²
Step-by-step explanation:
since the ratio is 1:6 for every one little box the bigger box increases 6 times.
so 15·6= 90 cm²
Answer:
1. 24 2. 21:15 3. 36:21
Step-by-step explanation:
18:27 is 2:3 and 24 is 16/2*3
7:5 is also 21:15
36:21 fully simplified is 12:7 not 9:7
He grates 6/8 pounds of cheese in all.
For this problem, you just have to add the numerators and keep the denominators.
4/8 + 2/8 = 6/8.
Remember, if the denominator is the same, just add the numerator.
(8+r)4
= 4*8+ 4*r (distributive property)
= 32+ 4r
8(x+9)
= 8*x+ 8*9
= 8x+72