3 years ago

Solve a=9y+3xy for y

Mathematics

1 answer:

Sauron [17]3 years ago

4 0

Answer:

y=a/(9+3x)

Step-by-step explanation:

Reverse: 9y+3xy=a

y(9+3x)=a

y=a/(9+3x)

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-18x-17=-53

nydimaria [60]

-18x-17=-53 /add 17 to both sides

-18x-17+17=-53+17

-18x=-36

x=(-36)/(-18)

x=2

5 0

3 years ago

The ratio of boys to girls at a movie is 3:4 . If there are 16 girls , how many boys are at the movie?

Annette [7]

Answer:

12 boys

Step-by-step explanation:

Set up a proportion: $\frac{3}{4} = \frac{x}{16}$
Cross multiply, then divide: 3 × 16 = 48, 48 ÷ 4 = 12

I hope this helps!

8 0

3 years ago

Read 2 more answers

HELPPPPPPPPP Write the quadratic expression to represent the pattern to the right

Lerok [7]

Answer:

n^2 + 2n - 1

Step-by-step explanation:

Figure 1

2*2 - 2

Figure 2

3*3 - 2

Figure 3

4*4 - 2

Equation for nth term

(n + 1)^2 - 2 =
n^2 + 2n + 1 - 2 =
n^2 + 2n - 1

4 0

2 years ago

The price of a television is $567.31. The state sales tax rate is 8.3%.

Tems11 [23]

8.3%= 0.083

567.31 * .083 = 47.086 = 47.09

567.31+47.09= $614.40

Total cost is $614.40

3 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%7C2x-3%7C%5Cleq%209" id="TexFormula1" title="|2x-3|\leq 9" alt="|2x-3|\leq 9" align="absmiddl

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

|2x-3|≤9

so -9≤2x-3≤9

add 3 to each inequality

-6≤2x≤12

divide by 2

-3≤x≤6

3 0

3 years ago