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3 years ago

15

Help!!i don’t understand.

2 answers:

krek1111 [17]3 years ago

8 0

Answer:

the answer is B

Step-by-step explanation:

the answer is B

denis-greek [22]3 years ago

6 0

Answer: The answer is D because it is the only equation that makes any sense to me because I’m in middle school so I have done these kinds of equations before

Step-by-step explanation:

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(6p-6/p)•((9p^2)/2p-2)

Alekssandra [29.7K]

Answer:

27p4-27p2-12p+12/p

Step-by-step explanation:

3 0

3 years ago

Seraphina is driving two hours to visit her family. For the first hour, she traveled at a speed of 62 miles per hour. Then, in t

Murljashka [212]

Answer:

11.3%

Step-by-step explanation:

$\%\ increase=\frac{final-initial}{initial} \times 100\%\\\%\ increase=\frac{69-62}{62} \times 100\%\\\%\ increase=\frac{7}{62} \times 100\%\\\%\ increase=11.3\%$

6 0

3 years ago

Find k, the constant of proportionality, for the data in this table. Then write an equation for the relationship.

VashaNatasha [74]

Answer:

$k=\frac{32}{5}$ , $y=\frac{32}{5}x$

$k=6.4$ , $y=6.4x$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

Find the value of the constant of proportionality k

take any ordered pair from the data

For x=25, y=160

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

substitute the values of x and y

$k=\frac{160}{25}$

simplify

$k=\frac{32}{5}$

The linear equation is equal to

$y=\frac{32}{5}x$

or

$y=6.4x$

7 0

3 years ago

What is the slop and y-intercept of this line y = x - 5

raketka [301]

Answer:

The slope is

1

y -intercept is

− 5

.

Step-by-step explanation:

7 0

3 years ago

I’ve a always been a visual learner so can someone’s help me out with this online math

Maurinko [17]

Answer:

Question 2:

If the size of bacteria is 2000 initially and doubles after every half hour

It means in the 1st 30 min its size is 2000

And in 60 min its

30min=2000

60min=?

60×2000=120000

120000÷30

=4000

And in 9hrs

1hr=60min

9hrs=?

60×9=540min

30min=2000

540min=?

2000×540

=1080000÷30

=360000

7 0

3 years ago