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vaieri [72.5K]
3 years ago
12

Hey guys! Remember, correct answer gets top! Please don't spam just for the points. That's a cowards move and I will try to dele

te any comments that have spam. ---- Jillian is using integer tiles to add 7 + (negative 2). She uses the steps below. Step 1 7 positive tiles. Step 2 7 positive tiles and 2 negative tiles. Step 3 7 positive tiles and 2 negative tiles. 2 positive and 2 negative tiles are circled. Step 4 7 + (negative 2) = 2 Jillian has made an error. In which step does it occur? Step 1 Step 2 Step 3 Step 4
Mathematics
2 answers:
Oxana [17]3 years ago
5 0

Answer:

THE ANSWER IS STEP 4

Step-by-step explanation:

notka56 [123]3 years ago
3 0

Answer:

Step 4 7 + (negative 2) = 2  Error

Step-by-step explanation:

Start with 7 positive tiles

Then add 2 negative tiles

Circle 2 positive and 2 negative tiles

We are left with 5 tiles

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6a - 5b when a = -3 and b = 4
DIA [1.3K]

Given.

6a - 5b

Plug in values.

6(-3) - 5(4) =

-18 - 20 =

-38

8 0
3 years ago
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Help me find the answer to this please
aksik [14]

Answer:

slope = -6 and y intercept=0

Step-by-step explanation:

3 0
2 years ago
PLEASE HELP LOTS OF POINTS!!!!!!!! TWO QUESTIONS!!!!!!!!!
zubka84 [21]

Answer: Number one would be 3x+2y+-14 and x+y=-4, second one is x=-3, y=7

Step-by-step explanation:

The first one is solved by inputting the x and y in each one and finding which one comes out true, the second on is solved by substitution. to find x you would subtract x in the first equation and make it y=4-x then input that equation in the y in the second equation.

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3 years ago
Free Brainly!! if answered correctly>>A club is holding a raffle. Ten thousand tickets have been sold for $2 each. There w
Semenov [28]

Answer:

1000(1/20000) +

300(2/20000) +

10(20/20000) +

=

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3 0
3 years ago
1. Determine whether the lines given by the equations 2x + 3y = and y=3/2x+4
son4ous [18]

Answer:

1. Yes, the lines are perpendicular.

2. y=\frac{5}{4}x+6

Step-by-step explanation:

The first equation of Exercise 1 is incomplete. Let's assume that it is:

2x + 3y =n

Where "n" is a number.

First, it is important to remember that the equation of a line in Slope-Intercept form is:

y=mx+b

Where "m" is the slope and "b" is the y-intercept.

By definition, the slopes of perpendicular lines are negative reciprocals.

1 . If you solve for "y" from the first equation, you get:

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

You can identify that the slope is:

m=-\frac{2}{3}

The second equation of the line is:

y=\frac{3}{2}x+4

And its slope is:

m=\frac{3}{2}

Since the slopes are negative reciprocals, the lines are perpendicular.

2. Given the first equation of the line:

y= -\frac{4}{5}x+6

You can identify that:

m=-\frac{4}{5}\\\\b=6

Since the first line and the second one are perpendicular, you know that the slope of the other line is:

m=\frac{5}{4}

According to the information given in the exercise, both lines have the same y-intercept; therefore, the equation of the second line is:

y=\frac{5}{4}x+6

4 0
3 years ago
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