Ad 20 words janet spelled 10 of them correctly what percent of words did she spell correctly
2 answers:
Out of 20 words, Janet spelled 10 of them correctly. What percent of the words did Janet spell correctly?
The fraction represents the 10 words that Janet spelled correctly out of all the words she spelled.
To find out what percent of the words that Janet spelled correctly, we can turn into a percent.
Before we turn it into a percent, we can reduce it by dividing both the numerator and denominator by the Greatest Common Factor of 10 and 20 using 10.
10 ÷ 10 = 1
20 ÷ 10 = 2
1 ÷ 2 = 0.5
0.5 × 100 = 50%
Therefore, Janet spelled 50% of the words correctly.
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Answer:
The merchant buys 30 shirts originally.
Step-by-step explanation:
Let us assume that the merchant bought x numbers of shirts in $120.
So, the cost for each shirt is $.
Now, if the cost for each shirt is reduced by 1$, then he would have bought 10 shirts more i.e. (x + 10) shirts in $120.
So, we can write the following equation as
⇒(120 - x)(x + 10) = 120x
⇒ 120x - 10x + 1200 - x² = 120x
⇒ x² +10x - 1200 = 0
⇒ x² + 40x - 30x - 1200 = 0
⇒(x + 40)(x - 30) = 0
⇒ x = - 40 or x = 30
But x can not be negative.
Hence, the merchant buys 30 shirts originally. (Answer)