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spayn [35]
2 years ago
8

A telecommunication company charges a monthly basic subscription fee of $20 for their

Mathematics
1 answer:
lukranit [14]2 years ago
4 0

Answer:

900 mins

Step-by-step explanation:

basic charge = 20$

so let's subtract it from 200$

so he will have 180$ for the post paid usage.

every 10 minutes = 2$

with 180$, he can do 180/2 * 10

= 90*10=900min

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A population of amoebas in a petri dish will triple in size every 20 minutes. at the start of experiment the population is 800.
sp2606 [1]
If we are to derive the equation that models the growth of the amoeba, we make use of the general form:
p = po k^t
where po is the initial population
k is the multiplicative rate of change

From the problem
3po = po k^(20)
k = 1.06

The equation is
p = 800 (1.06)^t
4 0
3 years ago
What is the volume (in cubic centimeters) of a cube with 4cm sides?
vova2212 [387]
I think it is 64 just multiply 4 times 4 times 4 because of the sides and to find volume you need to multiply the sides and the height so it should be 64.   
8 0
3 years ago
Will give brainlliest :>
Goshia [24]

Answer:

48 degrees

Step-by-step explanation:

<u>1) Solve for x</u>

Complementary angles add up to 90 degrees. Therefore, m<A + m<B is equal to 90:

A+B=90\\(2x+20)+(3x)=90

Open up the parentheses

2x+20+3x=90\\5x+20=90

Subtract 20 from both sides

5x+20-20=90-20\\5x=70

Divide both sides by 5

\frac{5x}{5} =\frac{70}{5} \\x=14

Therefore, x is equal to 14.

<u>2) Determine angle A</u>

A=2x+20

Substitute x with 14

A=2(14)+20\\A=28+20\\A=48

Therefore, the measure of angle A in degrees is 48 degrees.

I hope this helps!

3 0
3 years ago
Factor the expression completely by first taking out a common factor<br> 3x^2 + 27x + 24
Marina CMI [18]

Answer:

=3(x+8)(x+1)

Step-by-step explanation:

3(x^2+9x+8)

3(x^2+8x+1x+8)

3[(x^2+8x)+(1x+8)]

3[x(x+8)+1(x+8)]

=3(x+8)(x+1)

3 0
3 years ago
Please answer this question Step by Step method.
Kryger [21]

Answer:

see explanation

Step-by-step explanation:

The perimeter P is the sum of the 4 sides of the rectangle.

The opposite sides of the rectangle are congruent , then

P = 2x + 1 + 2x + 1 + x + x ← collect like terms

P = 6x + 2

6 0
2 years ago
Read 2 more answers
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