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Ratling [72]
3 years ago
9

5-9 please Thanks for your time

Mathematics
2 answers:
Reil [10]3 years ago
4 0
#5 add 12                     52
#6 add 1.4                    10.1
#7 add 2/4                     4 1/4
#8 subtract 5.5              8
#9 subtract 7.1              14.4
o-na [289]3 years ago
3 0
Five minus nine is negative four...
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I have no idea what the answer is or how to get it.
Lostsunrise [7]

I can't see the question

5 0
3 years ago
Factorise the following questions
lesya692 [45]

Answer:

ii)

\sqrt{2} x^{2}  + 3x +  \sqrt{2}   \\  =  \sqrt{2}x(x +  \sqrt{2} ) + x +  \sqrt{2} \\  = ( \sqrt{2} x + 1)(x +  \sqrt{2} )

7 0
3 years ago
65 POINTS!!! The price of an Ipad is $499. It is on sale for 18% off at the Apple Store on Mac Monday's. Find the Sales price yo
sineoko [7]

Answer:

The student added the discount instead of subtracting the discount.

They also did not calculate the tax correctly.

Step-by-step explanation:

Original price is 499

Discount = original price * percent off

Discount = 499 * .18

               =89.82

The sale price = original price minus the discount

sale price = 499-89.82

sale price = 409.18

Sales tax = sale price * tax rate

                = 409.18 * 8.875%

                =409.18*.08875

                 =36.314725

Rounding to the nearest cent

                     36.31

Final cost = sale price + sales tax

                  =409.18+36.31

                   445.49

The student added the discount instead of subtracting the discount.

They also did not calculate the tax correctly.

6 0
3 years ago
A student earned a grade of 80% on a math test that had20 problems. How many problems on this test did the student answer correc
Georgia [21]

Answer:

Only 16 problems correct

Step-by-step explanation:

Well I thought that since 80% is  4/5 then I should do 20 divided by 5 which will get me 4 and since I'm doing 4/5 I should go all the way up to 80% of 20 which will get me 16.

I'm not making that much sense but

Hope this helps :)

5 0
2 years ago
How to factor 3n+5n+2
AlladinOne [14]

Answer:

8n+2

Step-by-step explanation:

You add 3n to 5n and that gets you 8n.

The 2 is just alone.

5 0
3 years ago
Read 2 more answers
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