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2 years ago

3(4k+5) – 14k +5+5= how do you solve this

Mathematics

1 answer:

Schach [20]2 years ago

3 0

Answer:

3(4k+5)-14k+5+5=4k

Step-by-step explanation:

Parentheses

Exponents

Multiply

Divide

Add

Subtract

and also when you add the numbers the k just remains behind your solution

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Pls answer urgent. 4 questions only, due today pls help answer

anzhelika [568]

Answer:

ANS: 1 - D

ANS: 2 - B

ANS: 3 - A

ANS: 4 - D

Step-by-step explanation:

8 0

2 years ago

If Mike does his mathematics homework today, the probability that he will do it tomorrow is 0.8. The probability that he will do

harina [27]

Answer:

d. 14:11

Step-by-step explanation:

There is a 7 in 10 chance that Mike does his homework today and a 8 in 10 chance he will do it tomorrow, the probability that he will do it both today and tomorrow is:

$P = \frac{7}{10}* \frac{8}{10}\\P=\frac{56}{100}=0.56$

The odds are the probability that an event occurs over the probability that it does not occur:

$Odds = \frac{0.56}{1-0.56}=\frac{56}{44}=\frac{14}{11}$

The odds that he will do it both today and tomorrow are 14:11.

3 0

3 years ago

#Quality answer needed #No spam _/|\_

Rina8888 [55]

Answer:

Step-by-step explanation:

Given,

Cost price of the car when Arjun bought = ₹ 3,50,000

Cost price of that same car after 1 year = ₹ 3,70,000

So,

Amount of money increased on the car's price

= ₹ (3,70,000 - 3,50,000)

= ₹ 20,000

Therefore, 

Percentage of increase on the car's price

$= \frac{20000}{350000} \times 100$

[On Simplification]

$= \frac{2}{35} \times 100$

[On further Simplification]

= 5.7142......

= 5.71 (approx.)

Hence,

Percentage in increase of car's price was 5.71% (Ans)

7 0

2 years ago

Read 2 more answers

F and g are inverse functions. f(n) = -(n + 1)^3 g(n) = 3 + n^3 a) True b) False

Sophie [7]

Answer:

false

Step-by-step explanation:

hello

if f and g are inverse then (fog)(n)=n

as (fog)(n) is different from n it is false

hope this helps

6 0

3 years ago

The equations in this sytem were added to solve for x. What is the value of x?

son4ous [18]

Question:

The equations in this system were added to solve for x. What is the value of x? -2x+y=8 5x-y=-5 3x=3

Options:

x = negative 3

x = negative 1

x = 1

x = 3

Answer:

The value of x is 1

Solution:

Given system of equations are:

-2x + y = 8 ------- eqn 1

5x - y = -5 ------- eqn 2

The above equations are added to solve for "x"

Add eqn 1 and eqn 2

-2x + y + 5x - y = 8 - 5

Combine the like terms

-2x + 5x + y - y = 3

Add the like terms

3x + 0 = 3

3x = 3

Divide both sides of equation by 3

x = 1

Thus the value of x is 1

8 0

2 years ago

Read 2 more answers