2 years ago

2x2 - 3x - 2 = x + 4

Mathematics

1 answer:

kumpel [21]2 years ago

4 0

Answer:

The Answer is x = -1 or x = 3

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Please explain how you got your answer.

lyudmila [28]

Answer:

1,500 points per minute

Step-by-step explanation:

the first point where lines intersect is at 2,3 meaning at 1 it is 1.5 meaning 1500 points

4 0

1 year ago

There is an alien machine which produces seven aliens every two seconds. At this rate how many aliens will produces in one hour?

lyudmila [28]

Well, there are 60 minutes in 1 hour, and there are 60 seconds in 1 minute, so in 60 minutes, there are 60 * 60 seconds, or 3600 seconds in 60 minutes, or 1 hour, therefore, in 1 hour there are 3600 seconds.

the machine makes 7 aliens in 2 seconds, how many will it make in 3600 seconds?

$\bf \begin{array}{ccll}
aliens&seconds\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
7&2\\
a&3600
\end{array}\implies \cfrac{7}{a}=\cfrac{2}{3600}\implies \cfrac{7\cdot 3600}{2}=a$

that many.

3 0

2 years ago

Read 2 more answers

Hey im new, could someone help me???<br> evaluate 3(2)(-1)

asambeis [7]

3(2)(-1)= 3×2×-1= 3×2=6×-1=-6 -6 is the answer

7 0

2 years ago

Read 2 more answers

Anyone know the answer ?

zepelin [54]

Answer:

I think it's 48000

Step-by-step explanation:

mult.. them!!

5 0

2 years ago

Emily has some $5 bills and $10 bills she has 15 bills she has $120 how many $5 bills does she have

Alexxx [7]

Step-by-step explanation:

Let F = The number of $5 bills and T = the number of $10 bills. She has 15 bills total, so:

F+T = 15

T = 15-F

She has $120 total:

$120 = ($5)*F + ($10)*T

$120 = $5*F + ($10)*(15-F) [Substitute 15-F in place of T]

120 = 5F + 150 - 10F

-30 = -5F

6 = F

Check:

T= 15-F = 15=6 = 9

$120 = ($5)*6 + ($10)*9

$120 = $30 + $90

$120 = $120

4 0

2 years ago