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11111nata11111 [884]
3 years ago
12

3(x+5) = x + 19 solution please

Mathematics
1 answer:
Fynjy0 [20]3 years ago
5 0
X=2
Distribute 3 into parentheses. Then subtract 15 from both sides which gives you 3x=x+4.
Subtract x from both sides which gives you 2x=4. Divide by 2 on both sides thus giving you x=2.
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PLZ HELP WORTH A LOT OF POINTS AND I HAVE 10 MINUTES!!!!
Lina20 [59]

Answer:

The area after 9 years will be 1,234 km^2

Step-by-step explanation:

In this question, we are tasked with calculating what the area of a certain forest that decreases at a certain percentage would be after some years.

To answer this question, we shall be using an exponential approximation.

Now, to use this exponential approximation, we shall be needing a supporting exponential mathematical equation.

This can be written as;

A = I(1-r)^t

where A is the new area we are looking for

I is the initial area which is 1700 according to the question

r is the rate of decrease which is 3.5% = 3.5/100 = 0.035

t is time which is 9 years according to the question

We plug these values and have the following;

A = 1700(1-0.035)^9

A = 1700(0.965)^9

A = 1,233.66

This is 1,234 km^2 to the nearest square kilometer

5 0
3 years ago
A cylinder has a height of 10 millimeters and a radius of 3 millimeters. What is its volume?
elena-s [515]

Answer:

18312.5mm³

Step-by-step explanation:

Given parameters:

Height of cylinder  = 18mm

radius  = 18mm

Unknown:

Volume of the cylinder = ?

Solution:

The volume of cylinder is given as;

 Volume  = π r ² h

Insert the given parameters and solve;

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6 0
3 years ago
Read 2 more answers
Find the value of x (URGENT/GIVING BRAINLIEST)
alexira [117]

Answer:

D. 24

Step-by-step explanation:

Angles are the same, so 84 = 3x.

To get x alone, you divide 3 by both sides.

84/3 = 24

24 = x.

6 0
3 years ago
Need help real fast.
Nutka1998 [239]

Answer:

k=-2

Step-by-step explanation:

-1*-2=2

-1*-2=20*-2=0

-1*-2=20*-2=02*-2=-4

-1*-2=20*-2=02*-2=-45*-2=10

4 0
3 years ago
What is the equation of a circle with its center at (10,−4) and a radius of 2?
Dmitrij [34]
Equation of circle
(x-h)^2 + (y-k)^2 = r^2
=> (x-10)^2 + (y+4)^2 = 4 is the answer
7 0
3 years ago
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