3 years ago

HEY CAN ANYONE PLS ASNWER DIS!!!!!1

Mathematics

2 answers:

Katena32 [7]3 years ago

8 0

Answer:

11 songs

Step-by-step explanation:

If you bought 3 movies that would cost $5.40 leaving you with $6.60 to spend on songs. If one song costs $0.60 then you would divide that by 6.60 to see how many songs you would be able to get.

Ivanshal [37]3 years ago

4 0

Answer:

11 songs

Step-by-step explanation:

first you would multiply 1.80 by 3 which is 5.4

next you would subtract 12.0 by 5.4 and get 6.6

then you would divide 6.6 by .60 to get 11

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If y varies inversely with the square of x, and y = 26 when x = 4, find y when x = 2. Question 20 options: A) 52 B) 13 C) 208

babymother [125]

I believe your answer is A.

8 0

3 years ago

Solve the simultaneous equations

satela [25.4K]

I use the substitution method, but you can also use elimination and matrix

1. Solve for y in 3x+y=14
y=14-3x

2. Substitute y=14-3x into x+2y=3
-5x+28=3

3. Solve for x in -5x+28=3
x=5

4. Substitute x=5 into y=14-3x
y=-1

5. Therefore,
x=5
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Have a nice day :D

7 0

3 years ago

Read 2 more answers

How do I answer this using the square root method? -9(3x-2)^2=-225

dedylja [7]

$\bf -9(3x-2)^2=-225\implies (3x-2)^2=\cfrac{-225}{-9}\implies (3x-2)^2=\cfrac{225}{9}
\\\\\\
3x-2=\sqrt{\cfrac{225}{9}}\implies 3x-2=\cfrac{\sqrt{225}}{\sqrt{9}}\implies 3x-2=\cfrac{15}{3}
\\\\\\
3x=\cfrac{15}{3}+2\implies 3x=\cfrac{21}{3}\implies x=\cfrac{21}{9}$