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2 years ago

Simplify the expression by combining like terms. -9x + 2y - 7 + 8y + 2x + 20 Please help me

Mathematics

2 answers:

blsea [12.9K]2 years ago

4 0

Answer:

-7x+20y+13

Step-by-step explanation:

yanalaym [24]2 years ago

4 0

Answer:

-7x+10y+13

Step-by-step explanation:

want the explanation?

I guess no cause you know that we need to collect like terms. :)

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There are 20 pens in a package. Ten of the pens are black, 8 are blue, and the rest are red.

azamat

Answer:

1:5 simplifies

Step-by-step explanation:

2 are red 10 are black. so it would be 2/10 or 2:10 (both means the same) however if you simplified it, it will be 1:5

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3 years ago

Given that f(x)=x+3 and g(x)= X^2-x, find (f+g)(6)

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Answer:

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Step-by-step explanation:

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3 years ago

What's the equivalent expression

Mkey [24]

Answer:

2^52

Step-by-step explanation:

(8^-5/2^-2)^-4 = (2^-15/2^-2)^-4= (2^-13)^-4= 2^((-13*(-4))= 2^52

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3 years ago

Can I get help on this one

Vesnalui [34]

Use the app socraitc it will give you the answer fast

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3 years ago

Read 2 more answers

in base ten, the two-digit prime N is 45 more than the number formed by reversing the digits of N, find all the possible values

Drupady [299]

Let $N=10x+y$ , so that $x$ is the digits in the tens place and $y$ is the digit in the ones place. (Clearly $x\neq0$ .)

$10x+y=45+10y+x\implies 9x-9y=45\implies x-y=5$

There are five possible two digits integers that satisfy this relation:

$x=5,y=0\implies N=50$
$x=6,y=1\implies N=61$
$x=7,y=2\implies N=72$
$x=8,y=3\implies N=83$
$x=9,y=4\implies N=94$

But the first, third, and fifth candidates are even, so they are not prime. The remaining are prime, however, so $N=61$ or $N=83$ .

6 0

3 years ago