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3 years ago

.5y=y-12 what does why equal ?

Mathematics

1 answer:

lord [1]3 years ago

3 0

Answer:

-3

Step-by-step explanation:

$5y = y - 12 \\ 5y - y = - 12 \\ 4y = - 12 \\ y = \frac{ - 12}{4} = - 3$

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Which of the following are solutions to the equation below? Check all that apply. (3x - 5)2 = 19 O A. x= 19+ olm B. x= 119 +5 I

asambeis [7]

Solution

$(3x-5)^2=19$

For this case we can take square root in both sides and we have:

$3x-5=\pm\sqrt[]{19}$

And solving for x we got:

$x=\frac{5\pm\sqrt[]{19}}{3}$

then the solutions for this case are:

B and E

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1 year ago

A Car costs $9,998 and you need to rent it. How much will you pay per month if you have to pay for a 5 year loan?

dmitriy555 [2]

Idk cuz im stupid but cant you divide 9,998÷5?

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3 years ago

Read 2 more answers

What is the ratio of blue shapes to all shapes in the set below

Reika [66]

What you can do is count all the shapes the put the number of blue with that into a fraction. Lets say that there are 24 shapes and 15 are blue the fraction would be 15/25

Hope this helped. If you post a pic I can help you more.

5 0

3 years ago

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What is the solution of the equation over the complex numbers

denis-greek [22]

Answer:

$2i\sqrt{3}$

$-2i\sqrt{3}$

Step-by-step explanation:

$x^2 + 12$

First set the equation to 0

$x^2 + 12$

$x^2 + 12 = 0$

Second, get the 12 on the right side of the equal sign by adding a -12 to each side

$x^2 + 12 = 0$

$x^2 + 12 + (-12) = 0 -12$

$x^2 = -12$

Square root both sides of the equal sign.

$x^2 = -12$

$\sqrt{x^2} = \sqrt{-12}$

Take the square root on left sides of the equal sign.

$\sqrt{x^2} = \sqrt{-12}$

$x = \sqrt{-12}$

Take the square root on the right side of the equal sign. Remember $\sqrt{-1} = i$

$x = \sqrt{-12}$

$x = \sqrt{4}*\sqrt{-1}\sqrt{3}}$

$x = 2i\sqrt{3}$

AND

$x = -2i\sqrt{3}$

8 0

3 years ago

Reuben says, "two days ago i was 20 years old. later next year, i will be 23 years old." how is this possible?

Aneli [31]

Let us always base on the present age. We denote this by x. Now, the age he had 2 years ago would then be denoted as (x-2). Let's equate this to 20 years old.

x - 2 = 20
x = 20 + 2
x = 22 years old
He should be 22 years old now.

Let's check the other condition. After 1 year, his age should be (x+1). Let's equate this to 23 years old.

x + 1 = 23
x = 23 - 1
x = 22

Thus, this is possible if Reuben is 22 years old as of the present.

7 0

3 years ago