Andrew used this table to describe several numbers. What error did he make

The points represented by the table lie on a line, then the slope of the line would be; 3.

The slope is the ratio of the vertical changes to the horizontal changes between two points of the line.

Its slope would be:

[tex]m = \dfrac{y-q}{x-p}[/tex]

Since the Slope of parallel lines is the same. Slopes of perpendicular lines are negative reciprocals of each other.

Using any two pairs from the table of values given which are; (-4, 2) and (-3, 5):

[tex]m = \dfrac{y-q}{x-p}[/tex]

Now Plug the value into the slope formula:

m = (5 - (-4))/ (5 - 2)

m = 9/3

m = 3

Therefore, the slope of the line would be; 3.

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Answer:

ok that is correct because you start with 25 and then add 9 each week so 25+9w

Step-by-step explanation:

Answer:

(2,1)

Step-by-step explanation:

Answer: It's (2,1)

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

The number of cookies that are left unsold if they work from 6:00 AM until noon is 12.

Cookies baked per hour by Christine = 20*2 =40

Cookies sold per hour by Charlie = 38

There will be 6 hours between 6:00 AM and noon.

So, Cookies baked by Christine in 6 hours = 40*6 =240

Cookies sold by Charlie in 6 hours = 38*6 =228

Number of unsold cookies =240-228 =12

Hence, the number of cookies that are left unsold if they work from 6:00 AM until noon is 12.

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Answer:

12 R 147

Step-by-step explanation:

Answer:

80+ 0.3x = 60 + 0.4x

20 = 0.1x

x = 200

Therefore, at 150 miles, the best deal changes companies

Step-by-step explanation:

Answer:

y  =  − 2 x  −  8

Step-by-step explanation:

Write in slope-intercept form,  y = m x + b .

Answer:

Step-by-step explanation:

because you subtract both the y and x axsis then devide them

10-8               2

-------    =      ------    = 0.2

1 +8                9

i see nothing what do you mean

Answer

(2x + 3)=x+7

2x+3=x+7

2x-x=7-3

1x=4

Answer:

translate left 2, down 3

Step-by-step explanation:

^^^

Answer:

-7

Step-by-step explanation:

That's what Khanacademy says

Answer:

-7

Step-by-step explanation:

I got it right

this is the first answer

Answer:

you spend ethier 3/10 or you spend 5/10

Step-by-step explanation:

try it. because u can only add or subtract with like denominators.

24 minutes are spent working on science homework.

Given,

time spend for homework is

4/5 hours = 4/5×60 = 0.8×60 = 48 minutes

if 1/2 of this time is spent on working science homework

48×1/2= 48×0.5= 24 minutes

Hence, the total minutes spent, working on science homework is 24 minutes.

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Answer:

A +7= F

Step-by-step explanation:

A is his current age, and he gains, or adds seven years he will be F or his future age.

Answer:

  x = 3

Step-by-step explanation:

We don't know what equation you think is wrong.

__

The solution to the problem is ...

  x/2 +x/6 = 2

  x(1/2 +1/6) = 2 . . . . working using the given fractions

  x(3/6 +1/6) = 2

  x(4/6) = 2

  x(2/3) = 2

  x = (3/2)(2)

  x = 3

__

We can also work this by eliminating fractions first.

  x/2 +x/6 = 2

  3x +x = 12 . . . . multiply the equation by 6

  4x = 12 . . . . . . .collect terms

  x = 3 . . . . . . . . .divide by 4

Answer:

y = -5

Step-by-step explanation:

Step 1: Translate

"Sum" is addition

"a number y" is y

"-3" is -3

"is -8" means equal to -8

Step 2: Set up equation

y + -3 = -8

Step 3: Solve for y

Answer:

mm

Step-by-step explanation:

,l

Answer:

6 apples ofc

Step-by-step explanation:

Answer:

Step-by-step explanation:

18x + 3y = 51

-2x - 3y = -3

16x = 48

x = 3

-2(3) - 3y = -3

-6 - 3y = -3

-3y = 3

y = -1

Answer:

20

Step-by-step explanation:

Use PEMDAS

P = parenthesis

E = Exponents

M = Multiplication*

D = Division*

A = Addition**

S = Subtraction**

*either can come first, it just depends which comes first in the equation.

**either can come first, it just depends which comes first in the equation.

Step 1 : Write equation   4( 9 × 2 ) ÷ ( 4 -1 ) - 4

Step 2: Solve in parenthesis   4(18) ÷ (3) - 4

Step 3: Solve multiplication   72 ÷ 3 - 4

Step 4: Solve division               24 - 4

Step 5 : Solve subtraction         20

The simplified answers is -22.

The order of Operations is the rule in math that states we evaluate the parentheses/brackets first, the exponents/the orders second, division or multiplication third (from left to right, whichever comes first), and the addition or subtraction at the last (from left to right, whichever comes first). In math, there might be several operations to be done while evaluating an expression, and simplification at the end yields different results. However, we can only have one correct answer for any sort of expression. To identify the correct answer we simplify any given mathematical expression using a certain set of rules. These rules revolve around all the basic operators used in maths. Operators such as addition (+), subtraction (-), division (÷), and multiplication (×).

The order of operation can be termed as BODMAS.

Given:

4 + (9∙2) ÷ (4 - 1) - 4

=4+ (18) / (3)- 4

=22 / -1

=-22

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Answer:

3/10

Step-by-step explanation:

just because the numerator is bigger dosent mean it is bigger so its 3/10

Answer:

32 meters long (please double-check! sometimes ppl make mistakes)

Step-by-step explanation:

the ratio of height to shadow length is 15:8, as established in the first sentence. if both sides of the ratio are multiplied by 4 then the ratio becomes 60:32.

more in depth:

if you think of it as fractions (which ratios can be written as) multiplying both the numerator and denominator by four is the equivalent of multiplying by 4/4 aka 1 so the value still stays the same (one times something is the same thing). since the ratio of height to shadow length is constant we needed to solve for the ratio in which the height is 60, so multiply each side by 4 (aka 60 divided by 15) to find the new ratio, 15(4):8(4) or 60:32. the ratio 60:32 describes height to shadow, so while the height is 60 (said in the problem) then the shadow length is 32. adding units, the answer would be 32 meters.

Answer:

-1

Step-by-step explanation:

Answer:

Subtract 7 from both sides

Step-by-step explanation:

The first step is to collect all the whole numbers to isolate the variable.

Answer:

11 x ___ =93.5

___ = 93.5 ÷ 11

= 8.5

Answer:

93.5/11 = 8.5

Step-by-step explanation:

Answer:

It’s E. 64%

Step-by-step explanation:

Based on the number of people who had a car and the total number of people surveyed, the percentage is E. 64%

The percentage of students with a car is:

= Number of students with cars / Number of students in total x 100%

Solving gives:

= 60 / 94 x 100%

= 63.8%

= 64%

In conclusion, option E is correct.

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Answer:

The equation

(x/2) = 44

The answer

x = 88

Step-by-step explanation:

72 i rounded it to that