You need a common denominator while subtracting because really a fraction is a division problem and you cannot do 4/5-8/9 it does not make sense as for multiplication you really just multiplying everything that is why it makes sense.

3 0

4 years ago

13 million<br> in scientific notation

amm1812

13,000, 000 is the correct answer

3 0

3 years ago

What is the value of x

azamat

Answer:

x = 20

Step-by-step explanation:

given a line parallel to a side of a triangle and intersecting the other two sides, then it divides those sides proportionally , that is

$\frac{10}{5x+10}$ = $\frac{11}{121}$ = $\frac{1}{11}$ ( cross- multiply )

5x + 10 = 110 ( subtract 10 from both sides )

5x = 100 ( divide both sides by 5 )

x = 20

7 0

3 years ago

F(x)5x + 4<br> Find f(6)

saul85 [17]

$\sf{Hello!}$

$f(x) = 5x + 4$

$f(6) = ----$

$f(6) = 5(6) + 4$

$f(6) = 30 + 4$

$f(6) = 34$

Have a nice day!

6 0

3 years ago

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