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eduard
3 years ago
14

80% is best represented by which the following fractions A. 8/100 B.4/5 C.3/4 D.8/10

Mathematics
1 answer:
gladu [14]3 years ago
6 0

Answer:

d!

Step-by-step explanation:

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Answer ,how to do it.
guapka [62]

Answer:

<u>The system has two solutions:</u>

<u>x₁ = 5  ⇒ y₁ = -10</u>

<u>x₂ = -2 ⇒ y₂ = 11</u>

Step-by-step explanation:

Let's solve the system of equations, this way:

y = -3x + 5

y = x ² - 6x - 5

Replacing y in the 2nd equation:

y = x ² - 6x - 5

-3x + 5 = x ² - 6x - 5

x ² - 3x - 10 = 0

Solving for x, using the quadratic formula:

(3 +/- √(9 -4 * 1 * -10))/2 * 1

(3 +/- √9 + 40)/2

(3 +/- √49)/2

(3 +/- 7)/2

x₁ = 10/2 = 5

x₂ = -4/2 = -2

x₁ = 5  ⇒ y₁ = -10

x₂ = -2 ⇒ y₂ = 11

<u>As we can see the system has two different solutions</u>

8 0
3 years ago
Determine how much money you will have after 8 years if you invest 4,000$ at 7% compounded monthly
Solnce55 [7]
You would get $26,880.
0.07*4000= 280; so $280 are added every month
There are 96 months in 8 years, so multiply 280*96 which =26,880
7 0
2 years ago
Please help 10 FREE POINTS!!!!
Maurinko [17]

Answer:

364.5

Step-by-step explanation:

you would need a calculator for it, unless you can do exponential math at such a degree... if you're using a PC there's a good graphing calculator at Desmos.com, it can show you how a graph looks, which shows that when n is 7, the answer is 364.5. also it wouldn't be 1093.5 because the exponent is n-1 which means that while n could be 7, you need to take away 1 before using it as an exponent.

7 0
2 years ago
Read 2 more answers
15x (1/3+1/5)<br> I need help with this one also?
love history [14]

Answer:

8

Step-by-step explanation:

15 x (1/3+1/5)  make common denominators and add

15 x (5/15+3/15)  add fractions

15/1 x (8/15)  15 and 15 cancel out and become 1

1/1 x 8/1

1 x 8

8

3 0
2 years ago
Read 2 more answers
Please answer quick, taking test rn.<br> What is the domain of the function in this table?
Anna11 [10]

Domain is the x intercepts and range is the y intercepts.

So for this one, all of the ones in the x column would be the domain values.

C. (1,2,3,4) would be your answer.

good luck on the rest of your test!

5 0
2 years ago
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