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vichka [17]
3 years ago
5

Can you use addition or subtraction to solve any system

Mathematics
2 answers:
pshichka [43]3 years ago
7 0
Yes you can. Addition is able to substitute multiplication, just like subtraction is able to substitute division.
Sauron [17]3 years ago
4 0
Yes. <span>You can solve a system of equations through addition, subtraction, multiplication, or substitution.</span>
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Subtract. 4x2-5x+1 - (2x2+9x-6)​
Vinvika [58]

Answer:

4x^2 -5x + 1 - 2x^2 - 9x + 6

2x^2 - 14x + 7

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
HELP!!
True [87]
Yes is 12% good job hope this helps
8 0
3 years ago
Silvergrove middle school spent $60 to purchase 4 work books. How many these workbooks can they buy for $90? Solve using unit ra
cluponka [151]
They can buy 6 workbooks with $90. To find the unit rate we simply divide the cost ($60) by the number of books (4). That gives us $15, the cost of 1 workbook. So now to find out how many workbooks can be purchased with $90, we divide 90 by 15. That’s how I got 6 workbooks. Hope this helps.
6 0
3 years ago
I don't need the answer I NEED someone to explain this to me, I'm really struggling with this, and can someone walk me through t
Whitepunk [10]
<h2>Answer:</h2>

I hope it will helps u

<h2>Step-by-step explanation:</h2>

As given

x²-3x-10

Now according to the one of the rule of factorization ,

we have to find such two values whose product becomes equal to the

"product of first and last term " and if we sum those numbers it should be equal to the "middle term of it".

so such numbers are   -5x and +2x

if we add or multiply them we get the above

as  adding    -5x+2x=-3x  (middle term)

also multiplying   -5x*2x=-10x²  (product of 1st and last term)

so now , we can write as,

x²-3x-10

=x²-5x+2x-10

now making groups of 2 terms,

=(x²-5x)+(2x-10)

now common

=x(x-5)+2(x-5)

now common(x-5)

=(x-5)(x+2)   This is the required factors.....

6 0
3 years ago
You earn $15 an hour tutoring and $9 an hour working at the Sippy Drink. You can tutor a maximum of 10 hours a week. You have to
VARVARA [1.3K]

Answer:

5hours

Step-by-step explanation:

1 week =7 days

10 hr +20hr = 30 hrs

If you work 4hrs a wee k you will achieve only 28hrs of work so you will have to work for 5hrs to achieve 35hrs of work which is still within the bracket of 40hrs of work

In each job you will work for 2hours 30

minute

Each day you will earn $60.00

At tutoring you get $37.50

At sippy drink you will get $22.50

In a week you will get a maximum of $420.00

8 0
3 years ago
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