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3 years ago

Does anyone know what to do for this equation? 40 of $2.40= ?

Mathematics

1 answer:

wolverine [178]3 years ago

3 0

Answer:

0.96 or .96

Step-by-step explanation:

40 divided by 100 = 0.4 to change the percent to a decimal

and multiply 2.40 to 0.4, 0.4 times 2.40 is 0.96 or .96

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If a star is measured to have a parallax angle of 0.5 arcsec, how far away is the star?

blagie [28]

I think it’s a (b) because that one makes sence

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3 years ago

Solve using elimination.<br><br> –9x + 9y = 18<br> –6x + 9y = –12

Arada [10]

You can multiply either the top or bottom equation by -1 so lets say you apply it to the bottom equation it’ll look like this:

-9x + 9y = 18
6x - 9y = 12

then the +9y and -9y will cancel out

-9x = 18
6x =12

then you add the two equations together

-3x = 30

divide both sides by -3

x = -10

8 0

3 years ago

Read 2 more answers

Please I need this before 12pm

luda_lava [24]

Answer:

The required formula is:

$\ a_{n}=a_{1}+(n-1)d$

Step-by-step explanation:

The total number of squares of the the first term = 4

The total number of squares of the the second term = 7

The total number of squares of the the third term = 10

so,

$a_1=4$

$a_2=7$

$a_3=10$

Finding the common difference d

$d=a_3-a_2=10-7=3$

$d=a_2-a_1=7-4=3$

As the common difference 'd' is same, it means the sequence is in arithmetic.

If the initial term of an arithmetic progression is $a_{1}$ and the common difference of successive members is d, then the nth term of the sequence $(a_n)$ is given by:

$\ a_{n}=a_{1}+(n-1)d$

Therefore, the required formula is:

$\ a_{n}=a_{1}+(n-1)d$

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3 years ago

Lillian has $80 in a savings account. The interest rate is 10%, compounded annually.

arlik [135]

She will have 96.8 dollars in the saving account so she earned 16.8 dollars in interest
If this answered help you then please consider marking it as brainliest to help me level up to expert

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3 years ago

Solve each inequality then graph the solution

Artist 52 [7]

Answer:

a is x>3

b is _> x/4 +12

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Step-by-step explanation: hope this helps

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2 years ago