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Pavel [41]
3 years ago
14

Use the graph to solve the system of linear equations.

Mathematics
1 answer:
Andreyy893 years ago
5 0

Answer:

There is no graph

Step-by-step explanation:

One has to solve this using either substitution or elimination then...

x + y = 5

–2x + y = –4

x + y = 5

2x –y = 4

3x = 9

x = 3

y = 2

Solution (3 , 2)

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Pls help extra points and mark brainlist
vagabundo [1.1K]

Answer:

e

Step-by-step explanation:

it’s adding a number by itself the same as multiplying it by 2

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3 years ago
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2 1/4 - 1/15
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Answer:

2 11/60

Step-by-step explanation:

15/60 -4/60=11/60

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3 years ago
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On the day Alexander was born, his father invested $5000in an account with a 1.2% annual growth rate. Write a function, A(t) tha
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Answer:

Equation:  A(t)=5000(1.012)^n

Worth more in 32 yr than in 17 yr by:  $1199.92

Step-by-step explanation:

THe compound growth formula is:

F=P(1+r)^n

Where

F is the future amount (here, A(t))

P is the initial amount, here 5000

r is the rate of growth in decimal, 1.2% = 1.2/100 = 0.012

n is the time in years

Thus, we can say the function would be:

A(t)=5000(1+0.012)^n\\A(t)=5000(1.012)^n

Now, we want how much more it will be worth when 17 years and 32 years. We find the future amount, A(t), when n= 17 and n = 32 and find the difference. Shown below:

A(t)=5000(1.012)^n\\A(17)=5000(1.012)^{17}\\=6124.05

and

A(32)=5000(1.012)^{32}\\=7323.97

So, it will be worth more by:

7323.97 - 6124.05 = $1199.92

3 0
3 years ago
Erica solved the equation −5x − 25 = 78; her work is shown below. Identify the error and where it was made.
Salsk061 [2.6K]

Answer:

step 1 was wrong she should have added 25 to both sides

Step-by-step explanation:

step 3 was correct she divided both sides by -5

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3 years ago
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Write 2.36 x 105 in standard form
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That would be  236,000
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3 years ago
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