All categories

3 years ago

Make k the subject for 3t = 7k/13 - 17 and 7k = 4k/3t - 11t

1 answer:

3 0

A)

3t = 7k/13 - 17

3t + 17 = 7k/13

13*(3t + 17) = 7k

7k = 13*(3t + 17)

7k = 39t + 221

k = (39t + 221) / 7

b)

7k = 4k/3t - 11t

11t = 4k/3t - 7k LCM = 3t

11t = (4k - 21kt) / 3t

11t*3t = (4k - 21kt)

33t² = k(4 - 21t)

33t² /(4 - 21t) = k

k = 33t² /(4 - 21t)

I hope this helps.

You might be interested in

Round 224.91 to the nearest whole number do not add extra zeros

-BARSIC- [3]

Answer:

225

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

READ THIS CAREFULLY.(5 pts) If 70% of the students in a school sign up for Excercise Day, a sporting goods store will give the s

qwelly [4]

Answer:

265

Step-by-step explanation:

378 x 70% = 265 students

7 0

3 years ago

Enter the value for x that makes the equation 4x-2+3x-7 true <br><br>

expeople1 [14]

Answer:

I think the answer is

$x = \frac{9}{7}$

Step-by-step explanation:

Reason :

$4x - 2 + 3x - 7 = 0 \\ collect \: like \: terms \\ 4x + 3x - 7 - 2 = 0 \\ 7x - 9 = 0 \\ 7x = 9 \\ x = \frac{9}{7}$

Therefore

$x = \frac{9}{7}$

3 0

3 years ago

Which equation represents the relationship shown in the table?

Mila [183]

Y=4x because 20/5 equals 4

5 0

3 years ago

Read 2 more answers

A pitcher of water at 40 degrees Fahrenheit is placed into a 70 degree room. One hour later, the temperature has risen to 45 deg

solong [7]

Answer:

3 hours

Step-by-step explanation:

The difference between the initial temperature and the temperature after an hour is an increase of 5 degrees. Since we need to calculate the time it would take for the temperature to rise to 60 degrees we need to find the difference in degrees from the current temperature to 60 degrees.

60 - 45 = 15 degrees

Since 1 hour equals an increase of 5 degrees we need to divide 15 by 5 to calculate how many hours before the temperature increases to 60 degrees

15 / 5 = 3 hours

8 0

3 years ago