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gayaneshka [121]
3 years ago
10

Y=x+4, 2x+y=13 solve the following system of equation. Please help

Mathematics
1 answer:
alexandr1967 [171]3 years ago
7 0
Well you have to subtract -2 to both sides and it well look like Y= -2+13 and then y=x+4
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4/5 divided by 1 2/5
scoundrel [369]

Answer:

4/7

Step-by-step explanation:

Multiply the number by The reciprocal of 1 2/5

4/5*5/7=20/35

3 0
3 years ago
What is the sum of the difference?
Alona [7]

Answer:

A. 9x^4 and 3x^5y

Step-by-step explanation:

there are two ways to solve this:

first way:

You can solve this my substituting numbers for x and y in this case i used 2 for x and 3 for y and see which one is equal to the original equations

the second way is the regular way

when you add or subtract numbers with variables and exponents you want to add the constants and add the exponents in this case 5x^{4} +4x^2 is the same as (5x+4x)^(4+4) = 9x^4and you can do the same process for subtraction

12x^{5}y-9x^5 y\\(12x-9x)^(5+5)*y= 3x^5y

8 0
3 years ago
Solve the equation. x6−7=5 The first step is to___ on both sides of the equation. The second step is to___ on both sides of the
gogolik [260]

Answer:

x=2

Step-by-step explanation:

x6−7=5

x6=7+5

x6=12|:6

x=2

3 0
3 years ago
Which polynomial is a perfect square trinomal x^2 -6x +9 b) x^2 -2x +4 c) x^2 +5x +10 d) x^2 +4x +16
cestrela7 [59]
I hope this helps you

3 0
3 years ago
PLS HELP ME WITH THIS!!<br> Also pls explain why you go the answer.
adelina 88 [10]

Answer:

C

Step-by-step explanation:

To simplify this equation,

-x+10<2

-10 from both sides

-x<-8

Take out the negative

x<8

This means x is less than 8

For ≤ and ≥ , use a closed dot to indicate the number itself is part of the solution.

For < and >, use an open circle to indicate the number itself is not part of the solution.

In this case you use a open circle and becasue x is less than 8, the arrow pointing left is correct.

6 0
2 years ago
Read 2 more answers
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