The difference of a number times 4 and 9 equals 5

Mathematics

2 answers:

Over [174]3 years ago

8 0

<span>The difference of a number times 4 and 9 equals 5. Let the number be n.
Then 4n - 9 = a number times 4
The difference of a number times 4 AND 9 equals 5 comes out to be:

4n - 9 = 5

Add 9 to both sides: 4n = 14. Then n = 14/4 = 7/2 (answer)

Note that 14 less 9 is 5. This is one way in which you can check this result.

</span>

Nikitich [7]3 years ago

7 0

4y - 9 = 5
y is the unknown number

You might be interested in

Pls help me!!

vlada-n [284]

Answer:

The graph of y = f(x), has vertex at (1, -2)

<u>The vertex of a function f(x - 3) is going to be:</u>

(1 - 3, -2) = (-2, -2)

<em>The graph of y = f(x) has the line x = 5 as an axis of symmetry. The graph also passes through the point (8,-7). Find another point that must lie on the graph of y = f(x).</em>

The axis of symmetry is at the same distance from the symmetric points.

x = 5 is a vertical line. The point (8, -7) is 3 units to the right. So the mirror point will be 3 units to the left and have same y-coordinate: x = 5 - 3 = 2

The point is (2, -7)

The graph in blue is the translation of the red to the left by 2 units.

<u>So the equation is:</u>

y = f(x + 2)

y = h(x) is graphed

h(7) = 5
h(h(7)) = h(5) = -1

The graph of the function y = u(x) given

This is a odd function.

The coordinates of u(x) and u(-x) add to zero because u(-x) = -u(x)

<u>Therefore:</u>

u(-2.72) + u(-0.81) + u(0.81) + u(2.72) =
[u(-2.72) + u(2.72)] + [u(-0.81) + u(0.81)] =
0 + 0 = 0

3 0

3 years ago

A bike ramp is constructed such that a 5-foot launching ramp makes a 30° angle with the ground.

Leni [432]

Whats the answer.......waiting

7 0

3 years ago

Read 2 more answers

You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 35 bacteria reveals a sampl

pickupchik [31]

Answer: Sample size would be 296.

Step-by-step explanation:

Since we have given that

Standard deviation = 4.8 hours

Margin of error = 0.65 hours

At 98% level of confidence, z = 2.33

So, It becomes,

$0.65=z\times \dfrac{\sigma}{\sqrt{n}}\\\\0.65=2.33\times \dfrac{4.8}{\sqrt{n}}\\\\\dfrac{2.33\times 4.8}{0.65}=\sqrt{n}\\\\n=(\dfrac{11.184}{0.65})^2\\\\n=17.206^2\\\\n=296.051$