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inysia [295]
3 years ago
8

If you add​ Natalie's age and​ Fred's age, the result is 41. If you add​ Fred's age to 4 times​ Natalie's age, the result is 86.

Write and solve a system of equations to find how old Fred and Natalie are
Mathematics
1 answer:
max2010maxim [7]3 years ago
3 0

Answer:

Fred = 26, Natalie = 15

Step-by-step explanation:

N + F= 41 // N = 41 - F (eqn 1)

4N + F = 86 (eqn 2)

sub eqn 1 into eqn 2

4(41 - F) + F = 86

164 - 4F + F = 86

-3F = - 78

F = 26

sub F = 26 into eqn 1

N = 41 - F

N = 41 - 26

N = 15

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Two roots of a third degree polynomial function f(x) are 4 and 4. Which statement describes the number and nature of all roots
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3 years ago
Need help asap plz help dont have many points but ill give yu all i have if u help
Anna71 [15]
Hello!

We can go through the choices and see if they are true

Choice 1
A function has one output for every input

This is not a function because it has -1 as an output for both 4 and -1

This is the answer
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Choice 2
The inputs are the x's

We see that the inputs are -1, 0, 3, and 4

This is true
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Choice 3
The outputs are the y's

We see the outputs are -2, -1, and 1

This is true
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Choice 4
We can follow the lines and see the relations are

(-1, 1), (0, -2), (3, 1), (4, -1)

This is also true
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The only one that was false was the first choice so that is the answer

The answer is A) The diagram represents a function
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Hope this helps!
4 0
3 years ago
Brad wants to buy flowers for his friend with $33. The daisies are $1 each and the roses are $3 each. He buys 3 more daisies tha
Darina [25.2K]

Let x=the amount of roses that Brad buys. (x+3)=the number of daisies that Brad buys.


x+(x+3)=33


Simplify this problem to find the amount of roses:


2x+3=33


2x=30


x=15


So, Brad buys 15 roses and 18 daisies.


Since roses cost $3, 15*3=45.


The roses cost $45.


Hope this helps! :)

8 0
3 years ago
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