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Klio2033 [76]
4 years ago
7

Solve the equation 3x+5y=15 for y

Mathematics
1 answer:
saul85 [17]4 years ago
4 0
3x+5y=15
5y=-3x+15
y=-3/5 x +3
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Can you please help?
Liula [17]

Answer:

\huge\boxed{3.873}

Step-by-step explanation:

Note that the squares are on the sides of these triangles are on the hypotenuse/one leg.

We know that the area of a square is l^2 where l is the length. Since we know the area, we can find the square root of the area to find the side length.

So the side lengths are \sqrt{25} and \sqrt{10}.

Since we know the hypotenuse is \sqrt{25} and one of the legs is \sqrt{10}, we can use the Pythagorean Theorem to find the missing side.

The Pythagorean Theorem states that a^2 + b^2 = c^2, where c is the hypotenuse and a/b are the legs.

We know the <em>hypotenuse </em>and <em>a leg</em>, so we can substitute inside

a^2 + \sqrt{10}^2 = \sqrt{25}^2

Squaring a square root is the same as doing nothing.

a^2 + 10 = 25\\\\a^2 = 25-10\\\\a^2 = 15\\\\a = \sqrt{15}\\\\a \approx 3.873

Hope this helped!

7 0
4 years ago
What is 24.051 rounded to the nearest hundredth? How did you solve it?
4vir4ik [10]
This is like late elementary/early middle school stuff where you learn this.
First off, what number is in the position of the hundereth place? 0? No. 1? No. 5 yes! Now how i learned how to round is you take  the number to the right of whatever you are being asked about and round it up or down. Now if the number (in this case it is 1) is lower than 5, you round down (or keep it the same) but if it is 5 or higher you round up. since 1 is lower then 5, that 5 in the hundereths place stays the same. 
7 0
3 years ago
Help please its a quiz.
Anettt [7]
It’s C because it matches please tell me if I’m wrong
7 0
3 years ago
Read 2 more answers
Which of these number is divisible by. 2,10,5
Dahasolnce [82]
Attach the numbers What number
7 0
3 years ago
Read 2 more answers
Box A has a volume of 12 cubic meters. Box B is similar to box A. To create box B, box A's dimensions were multiplied by five. W
cestrela7 [59]

The formula for the volume of a box (assuming that it is in the shape of a cube) is <u>V=B^3</u>.

12=B^3

Now, do the cube root of 12 to find each dimension, all dimensions will be equal as it is a cube.

B= about 2.29 (when doing on a calculator keep full answer and do not round)

Now to find the volume of box B, multiply each dimension by 5

5(2.29...) times 5(2.29...) times 5(2.29...)

=1,500 m^3

Hope this helps!

3 0
4 years ago
Read 2 more answers
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