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Mama L [17]
3 years ago
14

A student reads at a constant rate in her chapter book. this can be described by the equation y equals 1/2 x. The teacher recomm

ends that students read for 20 minutes each night. How many pages will the student complete?
In a really exciting part of the book the student read 18 pages in one sitting.for how many minutes did she read?
If the book is 245 Pages how many minutes will it take her to finish? ​
Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
5 0
........zzzzzzzzzzzzzzzzznendjdjdheeoei(&;&:
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A student answered 86 problems on a test correctly and received a grade of 98%. How many problems were on the test, if all the p
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Read 2 more answers
Student Produced Response - Calculator
faltersainse [42]

Answer:

\dfrac{a}{b}=0.75.

Step-by-step explanation:

If two equations a_1x+b_1y+c_1=0 and a_2x+b_2y+c_2=0 has infinitely many solutions, then

\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}=\dfrac{c_1}{c_2}

The given equations are

ax+by=10

3x+4y=20

It is given that the above system of equations has infinitely many solutions. So,

\dfrac{a}{3}=\dfrac{b}{4}=\dfrac{10}{20}

\dfrac{a}{3}=\dfrac{b}{4}=\dfrac{1}{2}

Now,

\dfrac{a}{3}=\dfrac{1}{2} and \dfrac{b}{4}=\dfrac{1}{2}

a=\dfrac{3}{2} and b=\dfrac{4}{2}

a=1.5 and b=2

So, a=1.5 and b=2.

Now,

\dfrac{a}{b}=\dfrac{1.5}{2}=0.75

Therefore, \dfrac{a}{b}=0.75.

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4 years ago
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