3 years ago

One fourth of a number plus 3 gives 4. The number is:

Mathematics

2 answers:

Alex17521 [72]3 years ago

7 0

Answer:

x= 4

The number is 4

Step-by-step explanation:

Make it into an equation

1/4x + 3 = 4

1/4 = 4-3

1/4x = 1

x= 1 × 4

x= 4

Triss [41]3 years ago

5 0

The number would be 4

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Gabriella drives her car 340 miles and averages a certain speed. If the average speed had been 8 mph less, she could have travel

Elena L [17]

Most likely would be 42 because 340-8=332 then 332 divided by 8=41.5 and if you round it is 42.

5 0

3 years ago

3(-4n - 9) = 21 plc solve

erma4kov [3.2K]

<h3>Answer:</h3>

$\huge{\boxed{n=-4}}$

<h3>Explanation:</h3>

$\begin{array}{cc}\begin{flushright}\text{Divide both sides of the equation by 3.}\end{flushright}&\begin{flushleft}-4n-9=7\end{flushleft}\\\begin{flushright}\text{Add 9 on both sides.}\end{flushright}&\begin{flushleft}-4n=16\end{flushleft}\\\begin{flushright}\text{Divide both sides by -4.}\end{flushrigh}&n=-4\end{array}$