All categories

3 years ago

Anyone help me please ?

Mathematics

2 answers:

egoroff_w [7]3 years ago

4 0

Answer: y-intercept is 1/2 the slope is 5

Finger [1]3 years ago

3 0

2(y + 1) = 10x + 3

2y + 2 = 10x + 3

2y = 10x + 1

y = 5x + 1/2

slope: 5

y-intercept; 1/2

You might be interested in

Help me please I need the domain of the function.

borishaifa [10]

Answer:

Step-by-step explanation:

yea i dont know the the answer to that

3 0

2 years ago

A factory machine produces kilograms of chocolate every minutes. At what rate does the machine produce chocolate?

ICE Princess25 [194]

The question says kilograms every minutes, so it's C or D. The answers on A and B same

8 0

3 years ago

Read 2 more answers

A 3 foot stick is broken into two pieces. The ratio of the two pieces is 5:7. How big are the two pieces

Xelga [282]

Hello! The two pieces are 15 inches and 21 inches

3 0

3 years ago

3x + 4y = 27 5x - 3y = 16

Serhud [2]

Answer:

The lines will cross at (5,3)

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Two cyclists, Alan and Brian, are racing around oval track of length 450m on the same direction simultaneously from the same poi

skelet666 [1.2K]

Answer:

Alan: 200 m/min

Brian: 150 m/min

Step-by-step explanation:

Given : Two cyclists, Alan and Brian, are racing around oval track of length 450m on the same direction simultaneously from the same point. Alan races around the track in 45 seconds before Brian does and overtakes him every 9 minutes.

To find : What are their rates, in meters per minute?

Solution :

Let n represent the number of laps that Alan completes in 9 minutes.

Then n-1 is the number of laps Brian completes.

45 seconds = 3/4 minutes.

The difference in their lap times in minutes per lap is

$\frac{9}{(n -1)}-\frac{9}{n} =\frac{3}{4}$

Solving the equation we get,

$\frac{9n-9n+9}{n(n -1)} =\frac{3}{4}$

$9\times 4=3\times n(n -1)$

$36=3\times n(n -1)$

$n^2-n-12=0$

$n^2-4n+3n-12=0$

$n(n-4)+3(n-4)=0$

$(n-4)(n+3)=0$

$n=4,-3$

Neglecting n=-3

So, n=4

Then Alan's speed in m/min is

$S=\frac{D}{T}$

$S_a=\frac{4\times 450}{9}$

$S_a=200 m/min$

Brian completes 3 laps in that 9-minute time, so his rate is

$S_b=\frac{3\times 450}{9}$

$S_b=150 m/min$

Therefore, Alan: 200 m/min

Brian: 150 m/min

4 0

3 years ago