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Alik [6]
3 years ago
13

Find the solution of the system of equations. –7x – 3y = –20 3х + 6= -15

Mathematics
1 answer:
Nutka1998 [239]3 years ago
7 0

Answer:

(-7,23)

Step-by-step explanation:

You can use the app photo math

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What should i get for my birthday ? answer quickly plz ( its on june 3rd ) ( i need help)
aev [14]

Answer:

thats so cool! Happy Birthday you should get some kind of dessert and pizza.

Step-by-step explanation:

Dessert: get some ice cream and something to go with it. TASTY

Pizza: pizza=happiness and happiness is what you should be on your bday!

3 0
3 years ago
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A population of 100 frogs increases at an annual rate of 22%. How many frogs will there be in 5 years? Write an expression to re
gizmo_the_mogwai [7]
Exponential growth of the form:

F=Ar^t

F=100(1.22)^t

F(5)=100(1.22)^5

F(5)=270.27

F(5)=270 to the nearest frog...

....

1.22=r^12

r=1.22^(1/12)

F=100(1.22^(1/12)^t)

F=100(1.22^(t/12))  now it will produce monthly populations...

Say we did the same as before but instead of 5 years you have 60 months...

F(60)=100(1.22^(60/12))

F(60)=270 to the nearest frog... :P 
6 0
3 years ago
Mike reads 40 pages of a book in 50 minutes. David can read 10 more pages than Mike in 50 minutes. How many pages should David b
Sveta_85 [38]
David can read 50 pages in 50 minutes.
(50 pages)/(50 minutes) = 1 page/minute
Since David reads 1 page per minute,
in 80 minutes David can read 80 pages.
8 0
3 years ago
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Find the centroid for an area defined by the equations y = x² + 3 and y = - (x – 2)² + 7
sergeinik [125]
First we need to find where the 2 graphs intercept.

x^2 + 3 = - (x^2 - 4x + 4) + 7
x^2 + 3 = -x^2 + 4x + 3
2x^2 - 4x = 0 
2x(x - 2)

x = 0 , 2. are x coordinates  of the 2 intercepts.

6 0
2 years ago
What will $110,000 grow to be in 9 years if it is invested today at 11%?
timama [110]

Answer:

218,900

Step-by-step explanation:

6 0
2 years ago
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