MATHEMATICS HIGH SCHOOL

C equal 3x - 2 of x=5 than what does c equal

Answers

Answer 1
Answer:

Answer:

13

Step-by-step explanation:

Given,

x=5

Now,let's findthevalue ofC

c = 3x - 2

plugthevalue ofx

= 3 * 5 - 2

Multiplythenumbers

= 15 - 2

Calculatethedifference

= 13

Hopethis helps..

Bestregards!!
Answer 2
Answer:

Answer:

i need help this too

Step-by-step explanation:

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Which ordered pairs are solutions to the equation? y = 2x + 5 A. (5, 10) and (2, 9) B. (5, 15) and (9, 2) C. (15, 5) and (2, 9) D. (5, 15) and (2, 9)

After 4,000 gallons of water were added to a large water tank that was already filled to 3/4 of its capacity, the tank was then at 4/5 of its capacity. How many gallons of water does the tank hold when filled to capacity?(A) 5,000(B) 6,200(C) 20,000(D) 40,000(E) 80,000

Answers

Answer:  The correct option is

(E) 80,000.

Step-by-step explanation:  Given that after adding 4,000 gallons of water to a large tank that was already filled to (3)/(4) of its capacity, the tank was then at \drac{4}{5} of its capacity.

We are to find the number of gallons of water that the tank hold when filled to capacity.

Let the tank can hold x gallons of water when filled to capacity.

Then, according to the given information, we have

(3)/(4)x+4000=(4)/(5)x\n\n\n\Rightarrow (4)/(5)x-(3)/(4)x=4000\n\n\n\Rightarrow (16-15)/(20)x=4000\n\n\Rightarrow x=4000*20\n\n\Rightarrow x=80000.

Thus, the required capacity of the tank is 80,000 gallons of water.

Option (E) is CORRECT.

breakfast at the local cafe costs harry 38.70 without taxes. he wants to leave 15 percent tip how much should he tip

Answers

Turn 15% into a decimal.  0.15 is the same as 15%
Now multiply 38.70 by 0.15
You get 5.81 rounded.
He should leave $5.81 as the tip.

RST is an equilateral triangle; TXIRS -T
A
R
х
S
If RT = 8, then
TX=

Answers

Answer:

4√3

Step-by-step explanation:

I did a²+b²=c²

RX²+XT²=RT²  

4²+XT²=8²

16+XT²=64

XT²=48

√XT=√48

4√3

Answer:

TX=8, all sides of an equilateral triangle are congruent

The base of a triangle is represented by (2x − 6) and the height by (x − 2). Which polynomial expression BEST represents the area of the triangle?

Answers

Area of a triangle= (1)/(2) *base*height
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In a lab experiment, the decay of a radioactive isotope is being observed. At the beginning of the first day of the experiment the mass of the substance was 800 grams and mass was decreasing by 13% per day. Determine the mass of the radioactive sample at the beginning of the 12th day of the experiment. Round to the nearest tenth (if necessary).

Answers

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75 + ( - 50 ) + 250 + (- 150) + 50 = 175 ft A. What three numbers in the equation represent in an increase in elevation? B. Use the same sign to add these three integers together. C. What two numbers in the equation represent a decrease in elevation? D. Use the sign to add these two integers together. E. Add the resulting integers to determine the sum of the equation that describes the hikes in engage in elevation.​

Answers

Answer:

Below.

Step-by-step explanation:

A. 75, 250 and 50.

B.  75+250+50 = 375.

C. -50 and -150.

D.  -50 + -150 = -200.

E.  375 - 200 = 175.
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