MATHEMATICS MIDDLE SCHOOL

ERROR ANALYSIS Describe and correct the error in ﬁnding the x-intercept.-2x + 3y = 12

-2(0) + 3y = 12

3y = 12

y=4

Answers

Answer 1

Answer:

The x-intercept is -6

Step-by-step explanation:

In order to find the x-intercept, we put y = 0 and to find the y-intercept we put x = 0

In the given method, x is put equal to zero instead of y as x-intercept had to be found.

Given equation is:

$-2x+3y=12$

$-2x + 3(0) = 12\n-2x +0 = 12\n-2x = 12$

Dividing both sides by -2

$(-2x)/(-2) = (12)/(-2)\nx = -6$

The x-intercept is -6

Keywords: Coordinate geometry, Intercepts

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Michelle made a bead necklace that was 14 inches long. The length of the necklace, in inches, is equal to 4 added to one-seventh the number of beads, b.1/7b + 4 = 14

How many beads did Michelle use for her necklace?
70
17
35
700

Answers

1/7b + 4 - 4 = 14 -4
1/7b /1/7 = 10/ 1/7
b = 70
ANSWER = 70 beads

What is halfway between 20 and 29

Answers

Answer:

24.5

Step-by-step explanation:

Answer:

24.5

Step-by-step explanation:

yeet

Is y=4x-5 proportional

Answers

Answer: A proportional relation between two numbers, x and y is when:

y= k*x, where k is a real number.

this is read as "the number y is k times the number x" so y is proportional to x, and the constant of proportionality is k.

The equation in the problem is: y = 4x - 5, here you have an x-intercept equal to -5, this quantity breaks the proportionality relation. So in this case y is not proportional to x.

No it's not proportional because it would be like y=4x. And proportional relationship doesn't have any operation between the “k” and “x” where K is the unit rate or the constant of proportionality!

What is the value of the expression? 15 – 10 + (200 ÷ 20)3The 3 is an exponent. Please help ASAP

Answers

First take 200/20 then * that by 3 with is 30 than add 10 then -15 = 25 so you last answer is 25.

Darius buys a bottle of a chemical solution that contains 70%, percent alcohol. The bottle contains 500 milliliters of solution.

Answers

I'm assuming that you're asking how many milliliters of alcohol is in the solution. The answer would be 350 milliliters

Answer:350

Step-by-step explanation:What’s

Solve for x.

7x/2+ 5 = 8

Answers

7x/2+ 5 = 8

subtract 5 from each side

7x/2 =3

multiply by 2 on each side

7x = 6

divide by 7

x = 6/7

The value of x would be equal to 6/7.

WE know that equation is an expression that shows the relationship between two or more numbers and variables and mathematical equation is a statement with two equal sides and an equal sign in between.

We are given the equation as;

7x/2+ 5 = 8

Now subtract 5 from each side

7x/2 =3

To multiply by 2 on each side

7x = 6

Then divide by 7

x = 6/7

The solution will be 6/7.

Learn more about equations here;

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