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FromTheMoon [43]
3 years ago
12

Micheal wants to buy 12 pens but he is short of $8.40. If he buys 9 pens, he will have $29.40 left. How much money does he have?

Mathematics
1 answer:
trapecia [35]3 years ago
6 0
All you have to do is subtract the biggest numbers i the problems.
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Solve 2x + 4y = -8 and 4x + 8y = 5 by elimination. Please show work on how to get the answer.
goldfiish [28.3K]

Answer:

No solution

Step-by-step explanation:

Given two equations are 2x+4y= -8 and 4x+8y= 5

These two lines are parallel They don't have a solution because they do not meet .

Multiply the first equation by 2 we get 4x+8y = -16

the other equation is 4x+8y= 5 clearly these two are parallel .

To prove by elimination method we have subtract those two equations we get 21≠0 which is not possible.

Therefore there is no solution to the given set of equation.

5 0
3 years ago
What is the conjugate of -2 + 8i
topjm [15]

Answer:

-2 - 8i

Step-by-step explanation:

To find the conjugate of a complex number, change the sign of the imaginary part.

The conjugate of -2 + 8i is -2 - 8i.

3 0
3 years ago
This is a slope intercept form problem...can anybody please help me thank you ♥️
spayn [35]

Hi There!

-----------------------------------------

We Know:

$35 per person.

Guides Fee: 10 * 35 = 350

425 - 350 = $75 (guide fee)

-----------------------------------------

Part A:

The problem states to put c as cost and p as number of people:

c = 35p + 75

b = $75 (guide fee)

If you don't need the one above, this is just in slope intercept form.

y = 35x + 75

b = $75 (guide fee)

Answer: c = 35p + 75 or y = 35x + 75

-----------------------------------------

Part B:

How much would it cost for 15 people?

Lets use: c = 35p + b

Substitute p for 15 people and b as $75 for the guide fee: c = 35(15) + 75

Simplify: c = $600

Answer: The total cost for 15 people is $600.

-----------------------------------------

Hope This Helps :)

8 0
3 years ago
Which angles are remote interior angles? <br><br> 1 and 2<br> 2 and 3<br> 3 and 4<br> 1 and 4
Jobisdone [24]
The answer for this question is 2 and 3
5 0
3 years ago
Cindy Lou deposited $85 in the bank earning 4.5% interest annually. About how many years will it take her to earn $11.48 in inte
Bogdan [553]

Answer:

3.00 years

Step-by-step explanation:

Cindy Lou deposited $85 in the bank earning 4.5% interest annually. About how many years will it take her to earn $11.48 in interest?

Your answer

Given data

Principal= $85

Rate= 4.5%

Intterest=  $11.48

The simple interest formula is

SI= PRT/100

11.48= 85*4.5*T/100

cross multiply

11.48*100= 85*4.5*T

1148=382.5T

divide both sides by 382.5

T= 1148/382.5

T= 3.00 years

Hence the time is 3 years

3 0
3 years ago
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