MATHEMATICS MIDDLE SCHOOL

Solve for ×. site all steroids and check your work.

3×+5=35

Answers

Answer 1

Answer: x=10 first u do 35-5 then u do 30/3 to get 10

Answer 2

Answer: 3x=30<=>x=30/3<=>x=10

The graph is shown in the image.

Step-by-step explanation:

The inequality is shown by $g \geq 4.2$ .

At first we need to find the point 4.2.

In order to do so, it needs to divide the distance between 4 to 5 in 10 equal parts.

Adjacent part of 4 is 4.1 and the next adjacent is 4.2.

Since, g is greater or equal to 4.2, the arrow will be towards the increasing side.

See the image.

During the first hour of operation the farm stand owner sold 15% of the apples he had. On the second hour he sold 20% of the remaining apples. On the third hour he sold 25% of the remaining apples, and so on, selling 5% more each following hour. If during the third hour he sold 34 kg of apples, how many kilograms of apples did he have initially?

Answers

Answer:

75 kg

Step-by-step explanation:

%25 of ___ will give you 34.

____ x 0.20 = 34

____ = 34/0.20

34/0.20=170

___=170

Figure ABCD has vertices A(−2, 3), B(4, 3), C(4, −2), and D(−2, 0). What is the area of figure ABCD?

Answers

Answer:

The area of figure ABCD is:

24 square units.

Step-by-step explanation:

We see that the given points form the vertices of a trapezium ABCD with bases AD and CB with measure,

AD= 3 units

and CB=5 units

and the height of the trapezium is: AB= 6 units.

Hence, the area of trapezium ABCD is:

$Area=(1)/(2)* (AD+CB)* AB\n\n\nArea=(1)/(2)* (3+5)* 6\n\n\nArea=(1)/(2)* 8* 6\n\n\nArea=24$

Hence, the area of figure ABCD is:

24 square units.

6. What are the possible values for b for each the following values of c, for x^2 + bx + c if b > 0. List at least TWO possible integers for each value.1. c = -7
integers: 1. ? 2. ?

2. c = -3
integers: 1. ? 2. ?

3. c = 6
integers: 1. ? 2. ?

4. c = 12
integers: 1. ? 2. ?

I asked this question a couple of minutes ago and I feel like it isn't being understood completely so I edited the question to specify a little bit and posting it again. I am hoping you all understand it now and give me the best results. A huge thank you to all who attempts to answer!

Answers

Answer:

Look at explanation plz

Step-by-step explanation:

1) so we know that b cannot be anything lower than 0

So let’s substitute -7 in place of c:

x^2+bx-7

Factors of -7: 7,-1. -7,1

Only factor pair that Will not result in a negative or 0: 7,-1

Integers for B: 7,-1

Let’s do the same with number 2:

X^2+bx-3

Factors of -3: 3,-1. -3,1

Only factor pair that will not result in a negative or 0: 3,-1

Integers for B:3,-1

3) you know the drill:

6= 3,2 -3,-2. 6,1 -6,-1

Positive integers of 6: 3,2 or 6,1

Values for B: 3,2 OR 6,1 your choice

4) 12= 12,1. -1,-12. 4,3. -4,-3 6,2. -6,-2

Values for B: 12,1 or 4,3 or 6,2

I think the answer is 3. C= -3 and integer 2
The shortcut is if u have this brand calculator .. ‘ press mode, 5, 3 ‘....the quadratic calculator will appear and add the values to get whole numbers and not imaginary numbers ( i will be shown along with the numbers on the calculator )

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