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aleksandr82 [10.1K]
3 years ago
14

Solve the system using elimination. y – x = 13 7y + x = 11

Mathematics
1 answer:
Eva8 [605]3 years ago
6 0

Answer:

x= -10 ; y= 3

Step-by-step explanation:

see the picture

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What is 8x + 10 ≤ 51 please show work
Vanyuwa [196]

\huge\fbox{Hi~there!~:)}

Let's solve this inequality! :)

Let's start by subtracting 10 from both sides:

\rm{8x\leq 51-10}

\rm{8x\leq 41

Now, divide both sides by 8:

x\leq \displaystyle\frac{41}{8} (Answer)

Decimal form:

\rm{5.125}

I hope you find it helpful.

Feel free to ask if you have any doubts.

\bf{-MistySparkles^**^* here to help

3 0
2 years ago
In November mr lees students read 50 books in December they read 40 books what is the percent increase or decrease in the number
raketka [301]

10% decrease is the answer bb :)

7 0
3 years ago
Read 2 more answers
X - y = -2<br> y = -x - 2<br> What is the solution
LenKa [72]

Answer:

<em>x </em>= -2

<em>y </em>= 0

Step-by-step explanation:

Pretty hard process, but let me explain:

First, solve for y.

Substitute -x - 2 for y in x - y = -2:

Then, simplify both sides of the equation.

x - y = -2

x - (-x - 2) = -2

After, add -2 to both sides of the equation.

2x + 2 = -2

2x + 2 + -2 = -2 + -2

Next, divided both sides by 2.

2x/2 = -4/2

After that, substitute -2 for x in y = -x - 2:

You must simplify both sides of the equation.

y = -x - 2

y = -(-2) - 2

y = 0

Sorry if this is long and confusing, but I hope this helps!!

4 0
3 years ago
At a glassworks, 60 pounds of composite glass is required to produce 15 pounds of glass. How many pounds of composite are
aleksandr82 [10.1K]
Ngl I think it’s 20 because 15 is 5x3 but 60 divided by 3=20 lmk if I’m wrong
3 0
3 years ago
Choose the equation of the line that contains the points (1,-1) and (2,2)
natka813 [3]
(1,-1)(2,2)
slope = (2 - (-1) / (2 - 1) = 3/1 = 3

y = mx + b
slope(m) = 3
use either of ur points...(2,2)...x = 2 and y = 2
now we sub and find b, the y int
2 = 3(2) + b
2 = 6 + b
2 - 6 = b
-4 = b

so ur equation is : y = 3x - 4
7 0
3 years ago
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