MATHEMATICS MIDDLE SCHOOL

What is 4/7÷10/21
Help please!

Answers

Answer 1
Answer: (4/7) / (10/21):
Dividing 2 fractions is equal to multiplying the first fraction by the inverse of the second: Inverse of fraction a/b is b/a, so the inverse of 10/21 is 21/10.
So (4/7) / (10/21) = (4/7) * (21/10)
Now you multiply the numerators between each others to get one numerator, and same thing for the denominators
(4/7) * (21/10) = (4*21) / (7*10) = 84/70.
Now we need to simplify the fraction we got. Both 84 and 70 can be divided by 14, so 84/70 = (84/14) / (70/14) = 6/5.

So the (4/7) / (10/21) = 6/5

Hope this Helps! :)

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A new teen magazine has a readership goal of 3.5 million. It's current readership is 2.8 million. How much does its readership need to increase to meet the goal?

Answers

3,500,000 - 2,800,000 = 700,000

So the magazine needs 700,000 readers to meet their goal.

Hope that helps you. :-)
subtract 2.8 million from 3.5 million and then thats your answer

How do I solve 7 1/8÷4 3/4

Answers

Find Improper Fractions. Flip The Second Fraction. Divide. Simplify. Hope This Helps! :D
the answer is 1 76/152

7 1/8= 57/8

4 3/4= 19/4


57/8 * 4/19 (reciprocal)


answer is 228/152


change into a mix number which is 1 76/152

What's the answer to 16x-10y=10
                              -8x-6y=6

Answers

\begin{cases} 16x-10y=10 \n -8x-6y=6 \ \ /*2\end{cases}\n \n\begin{cases} 16x-10y=10 \n -16x-12y=12 \end{cases}\n + --------\n -22y=22 \ \ /:(-22) \n \n y=-1

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Can some one help me plz and thank u

Answers

replace f(x) wih y
switch all x wih y and y with x
solve for y
replace y with h(x)

f(x)=5/3x-2/7
y=5/3x-2/7
x=5/3y-2/7
x+2/7=5/3y
[3(x+2/7)]/5=y
(3x+6/7)/5=y
(21x+6)/35=y
(21x+6)/35=h(x)


h(x)=(21x+6)/35

last option is correct

Does one dozen means 12

Answers


Yes.  Exactly.  "One dozen" means twelve.
Yes 12 equals 1 dozen

At Jones College, there are a total of 100 students.If 30 of the students have cars on campus, and 50
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Answers

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