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vfiekz [6]
3 years ago
5

22) Evaluate the expression with its given values. 5x−2y;x=2,y=−1

Mathematics
1 answer:
Contact [7]3 years ago
5 0

\large\text{Hey there!}

\mathsf{5x - 2y}\\\mathsf{= 5(2) - 2(-1)}\\\mathsf{= 5(2) - (-2)}\\\mathsf{= 5(2) + 2}\\\mathsf{= 10 + 2}\\\mathsf{= 12}\\\\\\\large\text{Therefore, your answer is: \huge\boxed{\mathsf{12}}}\huge\checkmark

\large\text{Good luck on your assignment \& enjoy your day!}

~\frak{Amphitrite1040:)}

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Hey there!<br> What is rational numbers and how can I multiple them??<br> Pls tell mee!!
Elza [17]

Answer:

Just like multiplying fractions

Step-by-step explanation:

Rational numbers are like fractions a/b  

and they are multiplied straight across

4      6      24    because 4 x 6 = 24

--  x  -- =  ------

5      7       35    because 5 x 7 = 35

8 0
3 years ago
Read 2 more answers
An advertising company conducted a survey to determine how often people of different ages shopped online. The table shows the da
ohaa [14]

Answer:

Teens who use online shopping sometimes = 6

total number of people who use online shopping sometimes = 20

total percentage of teens using online shopping sometimes = 6/20*100 => 30%

hope it helps

have a nice day

4 0
3 years ago
What is the percent change of 36;63
STatiana [176]
First, find the difference.
63-36=27
Then, divide by the original number.
27/36=0.75
Then, put it in percentage form.
75%
7 0
3 years ago
A spinner and 4 cards are shown below:
yan [13]

Answer: 1 over 20

Step-by-step explanation: If the spinner has 5 parts to it at purple is one of those parts then the spinner has a 1/5 chance of it landing there.

If there are 4 cards and 1 of them are pink then there is a 1/4 chance of picking pink(if done randomly)

So if we mutiply 1/4 and 1/5, we get 1/20

That is how I arrived at my answer of 1 over 20

8 0
3 years ago
Read 2 more answers
i need help with number 7. its solving systems of equations by substitution. please show work!!! i need help
SIZIF [17.4K]
#7:
<span>Subtract </span>y<span> from both sides:
</span>-4x=6-y

Divide both sides by -4:

Answer:
x= -6-y/4


#7 part 2:

Add <span>y</span><span> to both sides:
</span>-5x=21+y

Divide both sides by -5:

Answer: x=-21+y/5

hope i helped!



7 0
3 years ago
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