1. 40% of the students in a school are boys.lf there are 240 boys, how many student are therein the school? 2. a boy has finished reading 160pages of a story book and he .

1. 80 2. 80 3. 96 4. 135432 5. a+b+c=06. -2/3 <x < 0 7. 15,16,17, … ,25 8. 199, 196 9. 6 10. ½( 5 + 1) 1. 2/5 2. 13 3. (8,27) , (-8,-27) 4. 342 5. 286. (4,1/8), (8,1/4) 7. 4034036 8. 2 10 9. 10. 15

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what`s 5 and 2 ? ( 5+2=?)It`s 7 . (5+2=7)

1. Two numbers differ by 57. Their sum is 185. Find the numbers. Choices for the . 17 more girls than boys. there are 431 students in all. how many boys are there? how many.

怎么我觉得不像英文题,要不我直接帮你翻译看会不会有帮助^_^ 还有,你第一题是不是打错名字啦?!1)Mark's sis=Joan, Jay's sis=Marion, Fred sis=Sally, 基于上述条件,Mark跟Marion, Jay跟Sally,Fred跟Joan2)4 for each3) 20x$1, $5x4, $10x2, 5x$1+$5+$10, 2x$5+$10, 10x$1+$10, 3x$5+5x$14) 四张 $1, 四张 $5

the captian is 31 years old.the captain has 2 children.the boat is 81 feet long.reason:the number of children should be a number less than 10, so the age of the captain and the.

第①个,选择1:obtuse angle即钝角,大于90°而小于180°,被角平分线平分,即除以. (需要翻译成英语吗?) 第④个,选择3:63,个位与十位数字互换之后为36;而且.

Suppose you have two five-card poker hands dealt from separate decks. You are told hand A contains at least one ace. You are told hand B contains the ace of spades. .

第一题 in a large town, one person in 80, on average, has blood of type X. how many donors must be taken at random in order that the probability of including a t least one .