A certain number is subtracted from 20.the result multiplied by 3 is equal to 45. What is the number?

Mathematics

1 answer:

Bess [88]2 years ago

6 0

I believe the answer is 35.

Explanation:

If you divide 45 by 3, you get 15. 20 + 15 = 35, hence the answer.

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Who can help on this for brainliest ?

k0ka [10]

Answer:

Step-by-step explanation:

$1\frac{1}{2}$ ÷ $\frac{1}{4}$ =

$\frac{3}{2} *\frac{4}{1}$ =

Hope this helps!

Pls give brainliest

8 0

3 years ago

Read 2 more answers

Choose the equation that satisfies the data in the table.

KengaRu [80]

The equation that satisfies the data in the table is,

y = -4x - 4 [Option D]

Definition of an Equation:

An equation is defined as a mathematical assertion in which you use mathematical symbols to demonstrate the equality of two amounts. A combination of expressions with variables and constants on either side of the equality sign make up an equation.

The (x, y) coordinates from the given table are,

(-1,0), (0, -4), (1, -8)

Now, these points must satisfy the required equation.

Considering the first point (-1, 0), if we substitute these values of x and y coordinates in y=4x-4, the equality is no longer maintained.

Similarly, (-1,0) does not satisfy the second and third equations, that are, y = -x + 4 and y = x + 4, respectively, either.

Taking the fourth equation, y = -4x - 4

Putting x = -1 in this equation, we get,

y = -4(-1) - 4

y = 4 - 4

y = 0

Likewise, this equation satisfies the rest of the data in the table too.

Therefore, y = -4x - 4 is the required equation.

Learn more about an equation here:

brainly.com/question/10413253

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3 0

2 years ago

In ΔJKL, the measure of ∠L=90°, KL = 22 feet, and JK = 54 feet. Find the measure of ∠J to the nearest degree.

nydimaria [60]

We have been given that in ΔJKL, the measure of ∠L=90°, KL = 22 feet, and JK = 54 feet. We are asked to find the measure of angle J to nearest degree.

First of all, we will draw a triangle as shown in the attachment.

We can see from our attachment that side KL is opposite side to angle J and side JK is hypotenuse of right triangle.

We know that sine relates opposite side of right triangle to hypotenuse.

$\text{sin}=\frac{\text{Opposite}}{\text{Hypotenuse}}$