2 years ago

45n=25 Simplify your answer as much as possible.

Mathematics

1 answer:

slamgirl [31]2 years ago

7 0

Answer:

5/9

Step-by-step explanation:

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Im new to this, please answer and explain pleased<br> Y/20=x

Pie

What are you looking for? The X? Tell us exactly.

7 0

3 years ago

Ellus

butalik [34]

9514 1404 393

Answer:

2.25

Step-by-step explanation:

Add the square of half the x-coefficient to complete the square.

(-3/2)² = 9/4 = 2.25

4 0

2 years ago

The ratio of money in Obi's wallet to Rudy's wallet one day was 5:2.

mamaluj [8]

Answer:

The amount that Obi initially had was £20

Step-by-step explanation:

Let

x ----> amount that Obi initially has

y ----> amount that Rudy has

we know that

$\frac{x}{y} =\frac{5}{2}$

$x=2.5y$ ----> equation A

$x-20=y-8$

$y=x-20+8$

$y=x-12$ ----> equation B

Solve the system by substitution

substitute equation A in equation B

$y=(2.5y)-12$

solve for y

$2.5y-y=12\\1.5y=12\\y=8$

Find the value of x

$x=2.5(8)=20$

therefore

The amount that Obi initially had was £20

4 0

3 years ago

5a+4b=65 elimination substitute and check

SIZIF [17.4K]

Answer:

a=13 - 4b/5

b=65/4-5a/4

Step-by-step explanation:

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2 years ago

What are natural numbers?

scoundrel [369]

Natural numbers are lie 1 2 3 4 5 6 7 8 9 and so on

8 0

2 years ago

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