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2 years ago

What is the answer to a + b + c??

Mathematics

2 answers:

strojnjashka [21]2 years ago

6 0

Yeah you can’t add them because there different variables

marissa [1.9K]2 years ago

5 0

Answer:

You can't add these because they are different variables

Step-by-step explanation:

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Help me please find the answer

dangina [55]

I’m pretty sure k=59 degrees since the area of a triangle is 180 so you just subtract the angles you already have to find the other one

3 0

3 years ago

Mila reads at a rate of 3 paragraphs per minute.

Alexxx [7]

Answer:

y= 3x

Step-by-step explanation:

This is honestly your basic times tables if we are being honest. We know that she read 3 paragraphs per minute. We also know that in 4 minutes, she read 12 paragraphs. 4 times 3 = 12. So the answer is y=3x.

7 0

3 years ago

the difference between two numbers is 4. three times the smaller number is equal to two times the larger less two. find the numb

Doss [256]

The larger number is 10 and smaller number is 6.

Step-by-step explanation:

Given,

The difference between two numbers = 4

Let,

x be the larger number.

y be the smaller number.

According to given statement;

x-y=4 Eqn 1

3y=2x-2 Eqn 2

Multiplying Eqn 1 by 3

$3(x-y=4)\\3x-3y=12\ \ \ Eqn\ 3$

Putting value of 3y from Eqn 2 in Eqn 3

$3x-(2x-2)=12\\3x-2x+2=12\\x=12-2\\x=10$

Putting x = 10 in Eqn 2

$3y=2(10)-2\\3y=20-2\\3y=18$

Dividing both sides by 3

$\frac{3y}{3}=\frac{18}{3}\\y=6$

The larger number is 10 and smaller number is 6.

Keywords: linear equation, substitution method

Learn more about substitution method at:

#LearnwithBrainly

3 0

3 years ago

The diagonals of square LMNP intersect at K. Given that LK = 1, find the measure of MP.

jek_recluse [69]

Answer: MP = 2

========================================================

Work Shown:

LK = 1 is given

LK = KN since the diagonals of a parallelogram bisect one another. The same can be said about PK = KM.

Since all squares are a rectangle, this means LN = MP. Any rectangle has its diagonals be congruent.

So,

LN = LK+KN

LN = 1+1

LN = 2

MP = LN

MP = 2

7 0

2 years ago

Read 2 more answers

A tank contains 1,000 L of brine with 12 kg of dissolved salt. Pure water enters the tank at a rate of 10 L/min. The solution is

vivado [14]

Answer:

y = 12*e^[-t/100]

Step-by-step explanation:

We have to mix problems we use:

dy / dt = (rate in) - (rate out)

The water entering the tank at a speed of 10 L / min but it has no salt, therefore

rate in = 0

The tank has 1000 liters of brine with 12 kg of salt initially, therefore the concentration of salt at time "t" is:

y (t) / 1000

then rate out would be:

rate out = y (t) / 1000 * 10 = y (t) / 100

The difference equation would then be:

dy / dt = 0 - y (t) / 100

1 / y (t) * dy = 1/100 * dt

We integrate from both sides and we have:

ln y = - (1/100) * t + C1

y = e ^ [- (1/100) * t + C1]

y = e ^ [- (1/100) * t] * e ^ [C1]

We assume that C = e ^ [C1]

Thus:

y = C * e ^ [- (1/100) * t]

now y = 12 to t = 0, replacing:

12 = C * e ^ [- (1/100) * 0]

12 = C, therefore we would have:

y = 12 * e ^ [- t / 100]

5 0

3 years ago