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I’ve posted this over 5 times please help me

Answer:

14

Step-by-step explanation:

First fond 40% of 20

20×40/100 = 8

So now there is a total of 20+8 =28

At the store you spend exactly half

28×50/100 =14

So now you are left with 28-14 =14

Answer:

x= - 5/2

Step-by-step explanation:

Answer:

x = -5/2

Step-by-step explanation:

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

4 - (-5 + 4) = 5

4 - (-1) = 5

4 + 1 = 5

Answer: True.

Step-by-step explanation:

do the math and u will see

No, The segments shown below could not form a triangle.

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

Three line segment with measure 9 , 4 and 15 are shown.

We know that;

The sum of two sides of a triangle are always greater than the third side,

Here, 9 + 4 = 13 < 15

Hence, The segments shown below could not form a triangle.

Thus, The segments shown below could not form a triangle.

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Answer:

Slope: 5/3, Y-intercept: (0,-3)

Step-by-step explanation:

`

Answer: yes because they both go to the 0 and has the same shape.

Step-by-step explanation: yes

Answer:

17c

Step-by-step explanation:

17 × c = 17c

Answer:

2 x (8 + 3)

Step-by-step explanation:

b) 16 + 6 = 2 x (8 + 3)

=> 22 = 2(11)

=> 22 = 22

Therefore, 2 x (8 + 3) is your answer.

Answer:

19

Step-by-step explanation:

31 + 49 = 80

80 - 61 = 19

Answer:

21

Step-by-step explanation:

One number is 3 times another

x and 3x

difference between the numbers is 14,

3x - x = 14

simplify

2x = 14

Divide both sides by 2

x = 7

3x = 21

Answer:

The larger number is 21.

Step-by-step explanation:

let, the smaller number be x.

the larger number be 3*x =3x.

Now,

3x-x=14

or, 2x=14

or, x=14/2

x=7

here,

3x=3*x=3*7=21

Answer:

My answer is Myra: 24.8s  Byron: 26.3s so byron is the winner

Step-by-step explanation:

I did it on my track and field day assignment and got it right

Answer:

x ÷ (12 - 3) = -4

x = -36

Step-by-step explanation:

x ÷ (12 - 3) = -4

x = -4(12 - 3)

x = -48 + 12

x = -36

Another Way:

x ÷ (9) = -4

x = -36

-Chetan K

Step-by-step explanation:

you really could not find this faster right away by a search on the internet ?

the general line equation is

y = ax + b

a is always the slope, and b is the y-intercept (the y value when x = 0).

so, the slope here is 5, and the y-intercept is 7

Answer:

x - 2y = 0

Step-by-step explanation:

The two lines have the same slope because they are parallel, and their equations have the same form as x-2y+3=0​, with only the constant (3) being different.  Solving this equation for y to find the slope, we get:

x + 3 = 2y, or y = (1/2)x + 3/2.  The line passing through (0, 0) with the same slope must then be y = (1/2)x; this line represents a proportional relationship because y is a constant multiple of x with the constant of proportionality 1/2.  This result may be rewritten as 2y = x or x - 2y = 0.

Answer:

56 42 35

Step-by-step explanation:

all numbers that are divisible by 7

56 is 7 groups of 8

42 is 7 groups of 6

35 is 7 groups of 5

Answer:

22

Step-by-step explanation:

-4u - 5 = 3

=> -4u = 8

=> u = -2

=> 7(-2) - 8

=> -14 - 8

=> -22

Therefore, -22 is our answer.

Hoped this helped.

Answer:

12 cm

Step-by-step explanation:

48/4 is 12 since there is 4 sides and all of them are equal.

Answer:

the answer is 192

Step-by-step explanation:

48 + 48 +48 +48 since a square is 4 sided and you add it all together which gets you 192.

In this experiment design, the missing element is the control group.

In most experiments, the researcher will need to have a control group and an experimental group.

The control group is the one that is not given a treatment, for example, if you are testing an antibiotic, then the control group is the individuals that do not receive the medicine.

This group is important because it acts as a reference to measure the real effect in the experimental group or those receiving the treatment.

The control group is missing in this experiment because the research will need to measure the hours students spend studying on a regular cloudy day, in this way, he can later determine if there is a real difference between the number of hours on a sunny day vs the number of hours on a day that is not sunny.

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Answer:

its C

Step-by-step explanation:

b is wrong

Answer:

10,000

Step-by-step explanation:

So 9 is the thousands place.

To round you just gotta see if 5 or up or 4 or down.

so it’s 5 or up so we add 1

so 10,000

Answer:

B) -7/2

Step-by-step explanation:

You would have to convert to slope-intercept form.

[tex]y=mx+b\\[/tex]

7x+2y=5

2y= -7x+5

y= -7/2x+5/2,

m= -7/2 = slope

Answer:

-2+10=8

Step-by-step explanation:

subtracting a negative is the same as adding a positive

(also they are like terms so this could be written as 10-2 but use the first one bc that's what they want)

Answer:

{g,h} = {-9/5,32/5}

Step-by-step explanation:

h = 2g + 10

3g + (2g+10) = 1

[1]    5g = -9

5g = - 9  

g = - 9/5

g = -9/

h = 2g+10

h = 2(-9/5)+10 = 32/5

{g,h} = {-9/5,32/5}

Answer:81.79$

Step-by-step explanation:

Total Value/ Percentage

So in this case it would be 545.19 divided by 25

and you would then get your answer, 81.79$

Answer:

5

Step-by-step explanation:

Eacl side of the square has a length of 5 cm.

Answer:

55%

Step-by-step explanation:

i assume your question is from mathswatch

And this is the answer for it!

Answer:

22.14

Step-by-step explanation:

Since perimeter is all around the easy part will be adding the trapazoids sides which add up as

11 + 4 + 4 = 19

when it comes to the semi circle you have to figure out the circumfrence

circumfrence = πd = π2

however because it is a semi circle you will need half of the circumfrence

π2 / 2 = π

so then you add the total to get

11 + 4 + 4 + 3.14 = 22.14

[tex]\sf \longmapsto4x-15=3[/tex]

[tex]\sf \longmapsto4x = 3 + 15[/tex]

[tex]\sf \longmapsto4x = 18[/tex]

[tex]\sf \longmapsto{x }= \frac{18}{4}[/tex]

[tex]\sf \longmapsto x = 4.5[/tex]

Answer:

[tex]x=\cfrac{9}{2}\;\; or \;\;4.5[/tex]

Step-by-step explanation:

[tex]4x-15=3[/tex]

[tex]4x-15+15=3+15[/tex] Add 15

[tex]4x=18[/tex]

[tex]\cfrac{4x}{4}=\cfrac{18}{4}[/tex] Divide by 4

[tex]x=\cfrac{9}{2}[/tex]

Answer:

AB is perpendicular to IB

A pair of segment that are marked perpendicular to each other are JC and CD.

As per the figure given,

∠JCD = 90°

In geometry, when it's stated that angle JCD is 90°, it means that angle JCD is a right angle. When two line segments or rays intersect to form a right angle, it indicates that they are perpendicular to each other.

In the context of the figure given, JC is a line segment , and CD is another line segment. The fact that angle JCD is a right angle (90°) tells that JC is perpendicular to CD.

Hence, as angle JCD is given as 90°, it establishes that JC is perpendicular to CD in the context of the figure given.

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