Answer: B(3)

Explanation: 12+9=21 so since 4+3 only equals 7, you plug in x as 3... since 7x3 is 21 that helps make the statement true bc both equations are equal.

7 0

3 years ago

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A recipe for crumb cake says to mix 3/8 cup of brown sugar and 1/3 cup of white sugar. From this sugar mixture, set aside 1/4 cu

ch4aika [34]

brown sugar= $\frac{3}{8}$

white sugar= $\frac{1}{3}$

you need to mix brown sugar with white sugar

$\frac{3}{8}$ + $\frac{1}{3}$ = $\frac{9+8}{24}$ = $\frac{17}{24}$

then it says you need to set aside 1/4 for the crumb topping from the previous sugar mixture that was $\frac{17}{24}$ , so

$\frac{17}{24}$ - $\frac{1}{4}$ = $\frac{68-24}{96}$ = $\frac{11}{24}$

The sugar mixture used to make the cake is $\frac{11}{24}$

3 0

3 years ago

For what values of the variable is each rational expression undefined 2x-3/2x-1( step by step please)

Rufina [12.5K]

$\frac{2x-3}{2x-1}\\\\Rational\ expression\ unde fined\ if\ 2x-1=0\\\\2x=1\ \ \ \ /:2\\\\x=\frac{1}{2}\leftarrow answer$

6 0

3 years ago

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