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GaryK [48]
4 years ago
12

Sanjay solved the equation below. Which property did he use to determine that 7x + 42 = 42 is equivalent to 7x = 0?

Mathematics
2 answers:
grandymaker [24]4 years ago
4 0

For this case we have the following expression:

7x + 42 = 42

From here, we must clear the value of x.

For this, we apply the following property :

  • <em>Substraction property of equality:</em><em> Subtract the same number on both sides of equality. </em>

We have then:

7x + 42-42 = 42-42\\7x = 0

Answer:

he used Substraction property of equality

serg [7]4 years ago
3 0
Subtraction property of equality
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Please help my son asked me for this and I don't understand it.
Tasya [4]

Answer:

y = 2x + 3

Step-by-step explanation:

In the slope-intercept form of the equation of a line,

y = mx + b,

m = slope, and b = y-intercept.

Let's look at Adriana's equation and understand the parts:

y = 2x + 4

y = mx + b

m = slope = 2; b = y-intercept = 4

Now let's look at the description of Henry's equation.

He has the same slope as Adriana, so for Henry, m = 2 also.

His y-intercept is 1 less than Adriana's, so it is 1 less than 4. Henry's y-intercept is 3.

Now that we know that for Henry, m = 2, and b = 3, we can write his equation.

y = mx + b

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Answer: y = 2x + 3

7 0
2 years ago
Read 2 more answers
PLS HELP!! will give brainliest
lubasha [3.4K]

Answer:

B.  {-2, 0, 1, 3}

Step-by-step explanation:

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8 0
2 years ago
Nicole bought six pounds of apples at $1.50 per pound. The store had a discount of $2 off her total purchase. Nicole and her fri
Andru [333]

Answer:

Step-by-step explanation:

Total amount of apples that Nicole bought was 6 pounds.

Each pound of apple cost $1.50

This means that the total cost of the 6 pounds of apple that Nicole bought would be

6 × 1.5 = $9

The store had a discount of $2 off her total purchase. This means that the amount that was paid is

9 - 2 = $7

If Nicole and her friend then divided the cost of the purchase evenly, let x represent the amount that each of them would pay. Therefore, the expression that can be used to determine how much Nicole and her friend each paid for the apples would be

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6 0
3 years ago
In a fruit punch drink, the 3 ingredients are apple juice, orange juice and cranberry juice. If 2/7 of
Sladkaya [172]

Answer:

3 : 4 : 7

Step-by-step explanation:

apple juice - 2/7 = 4/14

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8 0
3 years ago
Tess needs to buy sand for her children’s playground. The sand costs $8 per ton, and there is a delivery cost of $50 with each o
Butoxors [25]

Answer:

All positive rational numbers greater than 50

Step-by-step explanation:

Since the delivery cost is fixed per trip, the cost incurred can be represented by the equation

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Therefore, it's proper to conclude that all numbers in the possible range are positive rational numbers greater than 50

6 0
3 years ago
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