Answer:
1.)
y= (15 x 3) - 40
y= 45-40
y= 41
2.)
y= (2/3 x 21) +20
y= 14+20
y= 34
3.)
y= (3* -2)² +17
y= -6² +17
y= -36 +17
y= -19
SRY I DID NOT ANSWER BEFORE
Answer:
22:6, 33:9
Step-by-step explanation:
Basically, ratios are like fractions so 11:3 can be multiplied by 2 and 3:
11:3 x 2= 22:6
11:3 x 3 = 33:9
<span>Distributing the 33 books in groups of 11 will make it 3 groups . the first group can be selected in 33C11 ... the next 11 can be selected in 22C11 ways and the last group can be selected in 11C11 ways . If you calculate uptill now the answer will apparently seem to be option 1 . But since the 3 groups are indistinguishable, all the possible ways of arranging these three groups in the order of their selection is negated .. therefore we have to divide the answer by 3!</span>
Answer:
D sorry if it is incorrect I tried my best