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kow [346]
3 years ago
8

Select the property of equality used to arrive at the conclusion if x-3=7 , then x=10

Mathematics
1 answer:
Fantom [35]3 years ago
8 0

Answer:

The addition property of equality  

Step-by-step explanation:

According to the addition property of equality, if we add the same number to each side of an equation, the equality is still true.

We are given the equation

x – 3 = 7, and we must solve for x.

We want to get x by itself, so we <em>add 3 to each side</em>.

x – 3 + 3 = 7 + 3

             x = 10

We have just used the addition property of equality.

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A line passes through the point (0, –1) and has a slope of -2/3 What is the equation of the line?
Troyanec [42]
The slope formula:
y=mx+b
m - a slopeb - y-intercept
We have:
m=-\dfrac{2}{3} and point (0;-1)\to b=-1
Substitute:
y=-\dfrac{2}{3}x-1
Answer: A.

6 0
3 years ago
No Link or I’m blocking you :)
DaniilM [7]

Answer:

  • - 55

Step-by-step explanation:

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  • 20 - 15(4 · 5/4) =       Parenthesis
  • 20 - 15(5) =               Multiplication
  • 20 - 75 =                   Subtraction
  • - 55
8 0
3 years ago
Please help! 25 points!<br> Write the equation of a line with slope 3/2 and Y-Intercept -2.
Juli2301 [7.4K]
Hello there!

For this question, we can use slope-intercept form of a line. The following equation is the format for slope-intercept form:
y=mx+b

In this equation, m is the slope and b is the y-intercept. The slope and y-intercept is given. Thus, we just "plug in" the given values into the equation to get our answer. Replace "m" with "3/2" and replace "b" with "-2". After doing so, you get the following equation for the line.

y= \frac{3}{2} x-2

That should be your answer. Hope this helps! :)

~AgentCozmo4, Junior Moderator
3 0
3 years ago
11
Mila [183]

A = $4,312.00

I = A - P = $2,112.00

Hey!

Equation:

A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal

r = R/100 = 8%/100 = 0.08 per year.

Solving our equation:

A = 2200(1 + (0.08 × 12)) = 4312

A = $4,312.00

The total amount accrued, principal plus interest, from simple interest on a principal of $2,200.00 at a rate of 8% per year for 12 years is $4,312.00.

-------------------------------------------------------------

Hope this helped in some way..have a great day!

4 0
3 years ago
What are the first four terms of the sequence modeled by the recursive formula an=an-1+5 when a1=-3?
vodomira [7]

Given sequence: a_n=a_{n-1}+5

a_1= -3..

We need to find first four terms of the sequence.

We already given first term -3.

Let us find second term a_2.

Plugging n=2.

a_2=a_{2-1}+5 = a_1+5= -3+5 = 2.

Now taking n=3.

a_3=a_{3-1}+5 = a_2+5= 2+5 = 7.

Now, n=4.

a_4=a_{4-1}+5 = a_3+5= 7+5 = 12.

We got terms -3, 2, 7 and 12.

<h3>Therefore, correct option is B) –3, 2, 7, 12.</h3>
3 0
3 years ago
Read 2 more answers
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