4% of what number is 40?
2 answers:
Answer: 1,000
Step-by-step explanation: Well <em>percent</em> means over 100 so we know that 4% means the same thing as 4/100. <em>Of</em> means <em>times</em>, <em>what number</em> means <em>x</em>, <em>is</em> means equals, and <em>40 </em>means <em>40</em>.
So we have the equation 4/100 · x = 40.
Notice that 4/100 can be reduced to 1/25.
So rewriting our problem we have x/25 = 40.
To get rid of the fraction, we multiply both sides of the equation by 25 and we have x = 1,000.
Now let's check our answer back in the
original problem to see if it makes sense.
We have <em>4% of 1,000 is 40</em>.
Well we know that 100% of 1,000 would be 1,000 so 4% of 1,000 should be alot less than 1,000 so 40 seems to make sense.
I have also attached my own work in the image provided.
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Answer: 1. D) 30
2. A) 8
3. B) 4/15
4. A) 2/9
5.D) 64%
Step-by-step explanation:
1. Since, here the tokens from a bag containing 10 blue tokens, 8 green tokens, and 12 red tokens. The first draw is a green token.
Thus, the total token = 10 blue tokens+ 8 green tokens+ 12 red tokens = 30 token
Therefore, If the first draw is a green token, Then total outcomes that will possible = 30.
2. Since, getting green is an event with 8 favorable outcomes.
Therefore, If the first draw is a green token, Then total favorable outcomes that will possible = 8.
3. The possibility of getting green in first drawn, P(G) =
P(G) =
4. Here, Number of red socks= 5
Number of white socks = 2 and Number of blue socks=3
Therefore total socks = 10
⇒ Probability of picking a pair of red socks,
P(R)=
⇒ P(R)= 2/9
5. Since, here coin is flipped 50 times and lands on heads 32 times.
Therefore, experimental probability that coin will land on heads on the next flip = (total times in which head appears/ total number of experiments) × 100 = (32/50)×100=64%