A student takes an exam. The ratio of her right answers to her wrong answers is 10 to 3. Which of the following could describe t
his situation?
She answered 20 wrong and 23 right.
She answered 70 wrong and 21 right.
She answered 21 wrong and 70 right.
She answers 23 wrong and 20 right.
2 answers:
The correct answer is: She answered 21 wrong and 70 right.
Find a number of right that is a multiple of 10.
There are such lines:
21 wrong and 70 right: this is 70/21 = 10/3 = 10:3
23 wrong and 20 right
The correct answer is the third choice.
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The answer would be 66.5 sq :)!
Answer:
Let n and n+4 be the numbers. Then:
n² + 3(n+4)=66
n²+3n-54=0
(n+9)(n-6)=0
n=6 or -9
n+4=10
Assuming positive integers only, the numbers are 6 and 10…..
Step-by-step explanation:
100% right
Just sub x in with 5.
So 6(5)^3+8(5) = 6 (125) + 40 = 750 + 40 = 790.
So 790
Answer:
We know that 2/6 * 48 = 16 books are fantasy and sci-fi. Of those, 16 * 3/8 = 6 books are sci-fi.
It's the bottom one. 20 dollars has to be less than or equal to the amount. you cannot spend more than $20
