MATHEMATICS MIDDLE SCHOOL

What is the solution set -4.9x +1.3 > 11.1

Answers

Answer 1
Answer:

Answer:

x < - 2

Step-by-step explanation:

given - 4.9x + 1.3 > 11.1 ( subtract 1.3 from both sides )

- 4.9x > 9.8 ( divide both sides by - 4.9 )

Remembering to reverse the direction of the inequality symbol as a result of dividing by a negative quantity.

x < - 2 ← inequality reversed

solution set : x ∈ ( - ∞, - 2 )
Answer 2
Answer:

Answer:

x is over 2 :)

Step-by-step explanation:

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What is the mean of the set of numbers? –12, –4, 3, 7, 11

Answers

To find the mean, we need to add up all of the numbers, and then divide by the number of numbers...

–12, –4, 3, 7, 11 In the data set, there are 5 numbers...

(-12+(-4)+3+7+11)=5/5=1

Answer=1
Hi there! To find the mean we add up all of the data and then divide by how many numbers there are. In this case we have the numbers of -12, -4, 3, 7, and 11. -12+-4+3+7+11=5. Now, we divide by how many numbers there are. In this case we have 5 numbers of data. 5 divided by 5 equals 1. Therefore, the mean of the set of numbers is 1.

I don’t even know what i’m doing anymore. aren’t there supposed to be two answers??

Answers

Answer:

a>4

Step-by-step explanation:

-7a-11<1-4a

ADD 4a to both sides

-3a-11 <1

Add 11 to both sides

-3a <12

Divide both sides by 3

-a <4

Multiply by -1 both sides and FLIP SIGN

a>4

So  a should be 5 ,6,7,8.........

On the number line you need to count from zero  4 units to the right (positive 4) Once you are in number 4 draw an open circle which means the 4 is NOT included) Draw a line from 4 to the right because it is bigger than 4.

Interval notation is (4,∞)

[ ] a square bracket when we want to include the number 4

( ) a round bracket when we don't want to include the number 4

75% of what number is 42?

Answers

75 percent of the number 56 is 42.

Let the unknown number be x.

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Here, 75% of x is 42

75% of x= 42

75/100 ×x= 42

0.75x=42

x=42/0.75

x= 56

Therefore, 75 percent of the number 56 is 42.

To learn more about the percentage visit:

brainly.com/question/24159063.

#SPJ6

Answer:

56

Step-by-step explanation:

\bold{METHOD\ 1:}\n\n\begin{array}{ccc}100\%&-&x\n75\%&-&42\end{array}\qquad\text{cross multiply}\n\n75x=(100)(42)\n75x=4200\qquad\text{divide both sides by 75}\n\boxed{x=56}

\bold{METHOD\ 2:}\n\np\%=(p)/(100)\to75\%=(75)/(100)=0.75\n\n75\%\ of\ x\ is\ 42\to0.75x=42\qquad\text{divide both sides by 0.75}\n\n\boxed{x=56}

A store sells packages of 48 Snickers bars for $28 per package, and packages of 36 KitKat bars for $22.50 per package. Mrs. Sweettooth bought some packages of Snickers bars and some packages of KitKat bars in this store. She bought total 204 candy bars and paid $123.50. How many of each brand of candy bars did she buy?

Answers

The number of Snickers bar and KitKat bar bought is 95 and 109 respectively.

How to solve an equation

Cost of 48 Snickers = $28

Cost per one = $28/48

= $0.583

Cost of 36 KitKat = $22.50

cost per one = $22.50/36

= $0.625

let

  • number of Snickers = x
  • number of KitKat = y

x + y = 204 (1)

0.583x + 0.625y = 123.50 (2)

From (1)

x = 204 - y

substitute into (2)

0.583x + 0.625y = 123.50

0.583(204 - y) + 0.625y = 123.50

118.932 - 0.583y + 0.625y = 123.50

- 0.583y + 0.625y = 123.50 - 118.932

0.042y = 4.568

y = 4.568/0.042

y = 108.761904761904

Approximately,

y = 109

substitute into (1)

x + y = 204

x + 109 = 204

x = 204 - 109

x = 95

Learn more about equation:

brainly.com/question/16863577

Answer: 96 snickers and 108 kitkats

Step-by-step explanation: you should do system of equations and then it would be 48s+36k=204 and 28s+22.5k=123.5, after you do the math, the answer turns out to be 96 snickers and 108 kitkats. :)

V+1/2=-5/8 solve for v

Answers

v+\frac { 1 }{ 2 } =-\frac { 5 }{ 8 } \n \n v=-\frac { 5 }{ 8 } -\frac { 1 }{ 2 } \n \n v=-\frac { 5 }{ 8 } -\frac { 4 }{ 8 } \n \n v=-\frac { 9 }{ 8 }

I will give 100 points and brainly

Answers

The coast of the jenes is 37
cost of jeans is 65 bc they only bought one pair. the amount won’t change because it’s one pair (constant amount). 35x is the cost of the shirts bc it says they bought multiple, so the overall cost can change, depending on how many shirts.

jeans = 65
shirts = 35x
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