Answer:
what kind of a question is this? lol. seems liek u need to subtract those 20 students from 70. im not sure wat ur askin but here. try this.
Answer:
ANSWER ' A '
x - 4y = 8
Step-by-step explanation:
Answer:
The correct answer is (A). Copper and aluminum in the ratio of 10:1 means 10 parts copper to 1 part aluminum.
Step-by-step explanation:
So, if the ratio of girls to boys is 3:2 (imagine this: 3 and 2 groups of equal number, that's 5 groups and then each group will have 40/5=8 people), so there are 3*8=24 boys and 2*8=16 girls.
<span>1 : 3 : 2 : 2
this ratio means dividing the girls into 1+3+2+2=8 groups of 2, so the actual numbers are:
2:6:4:4
</span>
4 : 3 : 1 <span>this ratio means dividing the boys into 4+3+1=8 groups of 3, so the actual numbers are:
12:9:1
A.we know the actual numbers: 4 girls and 12 boys, so the ratio is 4:12, or simplifying: 1:3
B: look here: </span><span><span>2:6:4:4
</span>only 2 girls like orchestra
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