A school assembly had 70 students in attendance, and 10% of them were first-graders. How many first-graders were at the assembly ?
2 answers:
Answer:
20% of 30 is 6. Therefore 6 students were first graders
Step-by-step explanation:
7 of them were first graders.
Find how many first graders by using the percentage of total students and number of total students. Multiply them together, and 10% of 70 students is 7 students, which are the first graders.
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X=3/2 and 2/3
Step-by-step explanation:
6x^2 - 13^x + 6= 0
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By factorising...
2x(3x - 2) - 3(3x - 2)=0
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Hence, X=3/2 and 2/3
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