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

5x-4=3x-6<br> Solve equation.<br> PLEASE HELP ASAP

n200080 [17]

Answer:

$5x - 4 = 3x - 6 \\ 5x - 3x = 4 - 6 \\ 2x = - 2 \\ \frac{2x}{2} = \frac{ - 2}{2} \\ x = - 1$

7 0

3 years ago

It’s raining outside, and after 1 hour of rain, the water level in Jake’s pond is 2 meters. After 3 hours, the water level is 2.

GREYUIT [131]

Th state of change is 0.4 meters per hour

5 0

3 years ago

Dovator [93]

12^2=144

144 is divided by b which also is an odd interger, there only 2 numbers : 1 and 3

if b=3, a^2=48, then there will be no a available

if b=1 , a^2=144, then a is 12 and 12 can not be divided by 9

The answer is D

3 0

4 years ago

A farm had 480 acres more wheat than corn. After the farmers collected 80% of the wheat and 25% of the corn, the area of the whe

SVEN [57.7K]

A farm had 480 acres more wheat than corn. Let use "W" to represent the Wheat and let use "C" to represent the corn. Hence, we have below:
W=C+480

The farmers collected 80% of the wheat and 25% of the corn and the area of the wheat is 300 acres less than the area of the corn:
W-0.8W=C-0.25C+300
0.2W=0.75C+300
We have two equations, two unknowns:
0.2(C+480)=0.75C+300
0.2C+96=0.75C+300
0.55C=294
C=534.55

6 0

3 years ago

Read 2 more answers

Pamela drove her car 99 kilometers and used 9 liters of fuel. She wants to know how many kilometers (k) she can drive with 12 li

masya89 [10]

Answer:

132 kilometers

Step-by-step explanation:

Given: Pamela drove her car 99 kilometers and used 9 liters of fuel.

To find: Number of kilometers Pamela drove in 12 liters of fuel.

Solution:

It is given that Pamela drove her car 99 kilometers and used 9 liters of fuel. Also the relationship between kilometers and fuel is proportional.