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Bond [772]
3 years ago
11

Solve the system of linear equations by elimination. x−2y=−7 3x+2y=3. solution: (_,_)

Mathematics
1 answer:
irga5000 [103]3 years ago
4 0

Step1: Multiply first equation by 5 and second by 2.

<span>Step2: </span>add the two equations together to eliminate y from the system.

Step 3:substitute the value for x into the original equation to solve for y.


The solution is:

x=1 y=2
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What relation is a function? - plz help -
Eduardwww [97]

Answer:

Step-by-step explanation:

A relation from a set X to a set Y is called a function if each element of X is related to exactly one element in Y. That is, given an element x in X, there is only one element in Y that x is related to. ... This is a function since each element from X is related to only one element in Y.

7 0
3 years ago
Perform the following operation
Cerrena [4.2K]

Answer:

When you multiply an odd number of negatives you get a negative result. When you multiply an even number of negatives you get a positive result.

First, multiply normally.

25x10x5

1100

Then determine whether the sign is positive or negative. Since there is an odd number of negatives, the sign is negative.

So, the answer is -1100.

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7 0
3 years ago
Can someone please answer this please!
DaniilM [7]

Answer:

T = ±22

Step-by-step explanation:

Let's solve your equation step-by-step.

0=−16t2+7744

Step 1: Add 16t^2 to both sides.

0+16t2=−16t2+7744+16t2

16t2=7744

Step 2: Divide both sides by 16.

16t2

16

=

7744

16

t2=484

Step 3: Take square root.

t=±√484

t=22 or t=−22

6 0
3 years ago
6. Graph the equation 2x + 3y + z = 6.
inna [77]

Answer:

6th grade for the quarter and the other

Step-by-step explanation:

its been trying

5 0
3 years ago
Suppose you buy a $50 coffee maker in an area where the sales tax is 8%. When you check out, 8% of $50 would be added to your to
ASHA 777 [7]

Answer:

4

Step-by-step explanation:

8% is also 8/100. This would be true for all percents 0 to 100%. If it were 42% it can be written as 42/100.

So, 8% is 8/100. If you want to find 8/100 of 50 multiply them.

8/100 * 50/1 = (8*50) /100

400/100 = 4

7 0
2 years ago
Read 2 more answers
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