Answer:
The blank for the computers will be 20 because they are multiply each number by 2. The top blanks will be 4 and 16
Step-by-step explanation:
The first step would be to cross multiply:
x 4
-- = ---
2 12
12x = 8.
Solve the equation from there. :)
<span>0.008 is the decimal form of 8/1000
</span>
So we are starting out with 30 messages.
If 1/5 of the messages Lily receives are picture messages, then take 1/5 x 30 to find out how many that is.
1/5 x 30 = 30/5 = 6. So Lily receives 6 picture messages.
If 7/8 of the remaining messages are texts, then we need to find the number of remaining messages. If 6 are pictures and she receives 30 overall, then 30 - 6 = 24, the remaining number of messages. Since we know 7/8 of <em>this </em>number is the number of texts Lily received, let's do some more multiplication:
7/8 x 24 = (7 x 24)/8 = 168/8 = 21.
So Lily received 21 text messages, 6 picture messages, and 3 of something else!
Total heads = 10
Total legs = 26
Cat = 4 legs
Birds = 2 legs
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Assumed all birds :
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Total legs = 10 x 2 = 20
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Difference in legs :
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26 - 20 = 6
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Difference in legs between the two animals:
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4 - 2 = 2
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Find number of cats :
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6 ÷ 2 = 3
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Find number of birds :
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10 - 3 = 7
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Answer: There are 3 cats and 7 birds.
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