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2 years ago

3y - 15 =y + 1 solve for y

Mathematics

1 answer:

USPshnik [31]2 years ago

8 0

A n s w e r:

y = 8

Hope this helps!

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Solve the following pair of equations by elimination method: x+y=4, 2x+y=3

allsm [11]

Answer:

x = 1

y = 5

Step-by-step explanation:

x + y = 4 __ (1)

2x + y = 3 __ (2)

equation (1) x 2, (2) x 1

2x + 2y = 8

2x + y = 3

0 + y = 5

y= 5 (ANS)

x + y = 4

x + 5 = 4

x = 5 - 4

x = 1 (ANS)

I HOPE MY ANSWER IS CORRECT IF NOT I APOLOGIZE.

5 0

2 years ago

49.5 is what percent of 33

Nataly_w [17]

$making\ fraction\ and\ multiplying\ by\ 100\%:\\
\frac{49.5}{33}*100\%=\frac{4950}{33}\%=150\%\\\\
49.5\ is\ 150\%\ of\ 33.$

7 0

3 years ago

Danielle needs to walk 2.5 miles. If she wants to reach her destination in 30 minutes (1/2hour), how fast does she need to walk?

shepuryov [24]

5 mph to get that answer you use the speed equation
speed(mph)=distance(in miles)/time(in hours)
2.5
------ = 5 mph
.5

3 0

3 years ago

Please, for me? I need to pass my math class.

Ede4ka [16]

Answer: Black

Step-by-step explanation: I feel like the higher the line is on the graph, the farther they have moved, so since the black line is the lowest, it might be Noah.

Hope this helps!

5 0

3 years ago

If the ratio y/x is the same for all related pairs of x and y, what does that mean

Verizon [17]

Answer:

The same ratio indicates that there is a proportional relationship between y and x.

Step-by-step explanation:

We know when y varies directly with x, the equation is

y ∝ x

$y=kx$

$k\:=\:\frac{y}{x}$

Here,

k is the constant of proportionality.

The ratio y/x indicates that k is a constant of proportionality.

Thus, the same ratio indicates that there is a proportional relationship between y and x.

When x increases, y increases, and when y decreases, x also decreases.

4 0

2 years ago