3 years ago

Find the missing term for me plz nd thx

Mathematics

1 answer:

RUDIKE [14]3 years ago

8 0

Answer:

Step-by-step explanation:

3*2x=6x

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Solve algebraically the simultaneous equations<br><br> X^2 + Y^2 =25<br> Y-2X = 5

Georgia [21]

Answer:

Therefore the solutions are

$x=0\\and\\ y =5\\\\Or\\\\x=-4\\and\\y=-3$

Step-by-step explanation:

Given:

$x^{2} + y^{2} =25$ .........( 1 )

$y-2x = 5\\y=2x+5$ ................( 2 )

To Find:

x = ?

y = ?

Solution:

Substituting ' y ' in Equation 1 we get

$x^{2}+(2x+5)^{2} =25$

Using identity (A+B)²=A²+2AB+B² we get

$x^{2}+4x^{2}+20x+25=25\\\\5x^{2}+20x=0\\5x(x+4)=0\\5x=0\ or\ x+4=0\\x=0\ or\ x= -4$

Now Substitute x =0 in equation 2 we get

$y=2\times 0+5=5$

Now Substitute x =-4 in equation 2 we get

$y=2\times -4+5=-3$

Therefore the solutions are

$x=0\\and\\ y =5\\\\Or\\\\x=-4\\and\\y=-3$

4 0

4 years ago

How many numbers of the set {1, 2, 3, 4, . . . , 297, 298, 299, 300} are multiples of 10 but not multiples of 15?

slega [8]

Answer:

I get 20

Step-by-step explanation:

While there probably is some logical way to go about this I just did it in excel

screenshot below

5 0

3 years ago

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Need help will give brainiest!!!!!

Snowcat [4.5K]

Answer:

Step-by-step explanation:

6 0

3 years ago

44. Bradley and Ryan are having a contest to see who can collect the most bumper stickers. Bradley started with 23 bumper sticke

trasher [3.6K]

I think it's 7 months

3 0

4 years ago

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Marilyn ate 7/8 of a pizza. Gregory ate 1/3 of a pizza. How much more pizza did Marilyn eat than Gregory?

Serhud [2]

Answer:

13/24

Step-by-step explanation:

Find the LCD of 8 and 3, which is 24.

Now, multiply both numerators so that the following fractions would be equal:

7/8 = x/24

1/3 = y/24

Our result is that

7/8=21/24

1/3 = 8/24

21/24 - 8/24 = 13/24

8 0

3 years ago