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2 years ago

Find the value of X. (and the rest)

Mathematics

1 answer:

lianna [129]2 years ago

8 0

Answer:

a=70

b=110

c=50

d=130

e=50

Step-by-step explanation:

these are just angle properties

a=70

b=110

c=50

d=130

e=50

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The population of the town was 25,000 people.Then 3,200 people moved away.What was the percent of increase?

german

Answer:

-12.8%

Step-by-step explanation:

To calculate the percent decrease, we:

Find the difference between the new value and the original
Divide the number by the original
Multiply by 100 and the % symbol.

The population of the town originally had 25,000. 3,200 people moved away. This means that the new population is 21,800.

21,800-25,000=-3,200
-3,200/25,000=-0.128
-0.128(100)=-12.8%

The towns population decreased by 12.8%.

6 0

3 years ago

C and d are complementary. The measure of c is 4x and the measure of d is 26. What is the value of x

const2013 [10]

Answer:

The value of x is 16.

Step-by-step explanation:

We are given the following in the question:

c and d are complementary angles.

Measure of c = $4x$

Measure of d = 26

Since c and d are complementary, we can write from property of complementary:

$c + d = 90$

Putting values, we get,

$4x + 26 =90\\4x = 90-26 = 64\\\\\Rightarrow x = \dfrac{64}{4} = 16$

Thus, value of x is 16.

6 0

2 years ago

A travel agent receives a 9% commission on the base fair of a customer- that is the fair before sales tax is added if the total

Helen [10]

Answer:

98 he should receive yodjct7

3 0

2 years ago

A tank contains 1000 L of pure water. Brine that contains 0.05 kg of salt per liter of water enters the tank at a rate of 5 L/mi

Margaret [11]

Answer:

a) $y(t)=0.65\frac{Kg}{min}(tmin)$

b) $y(40)=26Kg$

Step-by-step explanation:

Data

Brine a (Ba)

$V_{Ba}=5\frac{Lt}{min}\\ Concentration(Bca)=0.05\frac{Kg}{Lt}$

Brine b (Bb)

$V_{Bb}=10\frac{Lt}{min}\\ Concentration(Bcb)=0.04\frac{Kg}{Lt}$

we have that per every minute the amount of solution that enters the tank is the same as the one that leaves the tank (15 Lt / min)

, then the amount of salt (y) left in the tank after (t) minutes: $y=V_{Ba}*B_{ca}+V_{Bb}*B_{cb}=5\frac{Lt}{min}*0.05\frac{Kg}{Lt}+10\frac{Lt}{min}*0.04\frac{Kg}{Lt}=\\0.25\frac{Kg}{min}+0.4\frac{Kg}{min}=0.65\frac{Kg}{min}$

Finally:

a) $y(t)=0.65\frac{Kg}{min}(tmin)$

b) $y(40)=0.65\frac{Kg}{min}(40min)=26Kg$

being y(t) the amount of salt (y) per unit of time (t)

5 0

2 years ago

What is the third quartile of {6, 9, 16, 11, 12, 16, 5, 14, 5}

Evgen [1.6K]

12 is the median

Q1 is 12.5

Q3 is 9.5

The answer is 9.5

Hope this helps!

8 0

3 years ago

Read 2 more answers

Find the value of X. (and the rest)​

Find the value of X. (and the rest)