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liberstina [14]
2 years ago
15

A) Complete the table of values for x + 2y = 7

Mathematics
2 answers:
lozanna [386]2 years ago
7 0

Answer:

4.5 , 4 , 3.5 , 3 , 2.5 , 2

Step-by-step explanation:

It's really easy

we need to replace value of 'x' in x+2y=7 by the given values and find the value of y and write it in the table

so first the value of x is -2

replacing value of x by -2

x+2y=7

or, -2+2y=7

or, 2y = 7+2

or, y= 9/2

or, y= 4.5

and we do the same process for other values of x and y

Marrrta [24]2 years ago
3 0
The values for y are as follows
4.5, 4, 3.5, 3, 2.5, 2
You might be interested in
A. (−13)+(−7)= b. (−15)− (−15)= c. (2)∙ (−13)= d. (−44)÷ (11)= e. (−3)+(−5)+(8) +(25)= f. 3+4=4
nevsk [136]

Answer:

See answer below

Step-by-step explanation:

In this case, this is just sum, substraction and divisions using the properties or the signus. This is just basic operations using the negative and positive numbers.

To do this easily you just have to remember the following:

1. Numbers with same sign, must be summed and put the sign that have either number.

2. Numbers with different sign, must be substracted and then put the sign of the highest number.

3. If you have a multiplication or division:

- Same signs multiplied or dividied (Either positive or negative), result always positive.

- Different signs multiplied or dividied (positive and negative), result always negative.

Following this simple rules, you'll be able to solve almost any exercise of this.

Now, according to the rules above, let's solve the exercises:

A. (-13) + (-7)

In this case, you have two negative numbers, and one positive sign between them. Apply the 3rd rule. The negative sign remains and then:

-13 - 7

Now 1st rule applied, sum the numbers and let the same sign:

-13 - 7 = -20.

B. (-15) - (-15) = 0.

Applying 3rd rule and then 2nd rule, we have a subtration of -15 + 15.

C. (2) * (-13) = -26

Applying the 3rd rule, we have positive and negative, result always negative.

D. (-44) / 11 = -4

3rd rule applied.

E. (-3) + (-5) + 8 + 25 = 31

Applied 3rd and 1st rule.

I don't understand the f, but you can use the rules here and get the final answer of that one.

Hope this helps

7 0
3 years ago
Evaluate
VMariaS [17]

Answer:

  -3/4

Step-by-step explanation:

A calculator can work this for you. All you need to do is substitute the numbers for the variables.

  yx^y -xy^x

  = 4(1/2)^4 -(1/2)(4^(1/2))

  = 4/16 - 1/2√4 = 1/4 - 1

  = -3/4

3 0
3 years ago
Solve for x: 3(x-4)=12
levacccp [35]
The answer would be x=8
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3 years ago
Read 2 more answers
What type of algebra is 3.75(18) + 4.25(32) = 316
quester [9]
Algebra 1, solving equations/finding real solutions
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3 years ago
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He sum of two numbers is 58. The difference of the two numbers is 32.
Katarina [22]
X is 45 and Y is 13.
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3 years ago
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