Two easy seventh grade problems, please help !

Answer:

168

Step-by-step explanation:

168 is  the ans is 100% correct

(hope this helps can i plz have brainlist :D hehe)

the angle of that is a right angle I think hope this helps

Answer:2.5

Step-by-step explanation:

Answer:

5 is good plz mark me plxzzzzzzzzzzzzzzz-zzzzzzzzzzzzzzz

Answer:

x = -3

Step-by-step explanation:

24 = 12 - 4x

24 - 12 = -4x

12 = -4x

12/-4 = x

x = -3

Answer:

x=-3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

24=12−4x

24=12+−4x

24=−4x+12

Step 2: Flip the equation.

−4x+12=24

Step 3: Subtract 12 from both sides.

−4x+12−12=24−12

−4x=12

Step 4: Divide both sides by -4.

−4x

−4

=

12

−4

x=−3

Answer:

(4r+13)(4r-13)

Step-by-step explanation:

Answer: Angle VU is 44 degrees

Step-by-step explanation:

Answer:

6

-

5

Step-by-step explanation:

You can do there are multiple ways but the easiest is rise over run so

so -4 to 2 is 6 and -2 to 3 is 5 so the answer is

6

--

5

You can also do the much harder way of

Y2-Y1   (-2,-4)     2-(-4)    6

---------    x  y       --------= --

X2-X1    (3,2)      3-(-2)    5

Answer:

The ratio of the difference of the two means to Sidney's mean absolute deviation = [tex]\frac{4}{3.28}[/tex] = 1.2195

Step-by-step explanation:

P.S - The exact question is -

Given - The means and mean absolute deviations of Sidney’s and Phil’s grades are shown in the table below.

                                       Sidney’s Grades           Phil’s Grades

Mean                                     82                                    78

Mean Absolute Deviation      3.28                                 3.96

To find - Which expression represents the ratio of the difference of the two means to Sidney’s mean absolute deviation?

Proof -

Given that Mean of Sidney Grades = 82

                 Mean of Phil's   Grades = 78

So,

The difference of two means = 82 - 78 = 4

Also,

Given, Mean Absolute Deviation of Sydney = 3.28

Now,

The ratio of the difference of the two means to Sidney's mean absolute deviation = [tex]\frac{4}{3.28}[/tex] = 1.2195

Answer:

.

Step-by-step explanation:

Answer: (4,1)

Step-by-step explanation: Hope this helps :)

Answer:

Angle 1 = 114

Angle 2 = 66

Angle 3 = 114

Angle 4 = 66

Step-by-step explanation:

A full angle add up to 360

2 and 4 are opposite so they are the same

1 and 3 are also opposites so they are the same

360 - 132 (angles 2 & 4 added together)

= 228 (this is for one angel only so u need to divide it by 2)

228 / 2 = 114

so to just check its correct add them altogether

114 + 114 + 66 + 66

= 360

hope this helps :)

have a great easter : hope to get brainly

Answer:

its sulfur because they have higher electronegativity such as n, o, f, (flourine)

Answer:

Answer:

3145

Step-by-step explanation:

Answer:

option A

Step-by-step explanation:

=> In first figure traingle has

=> base = 4

=> height = 4

=> area = 1/2*base*height

=> area = 1/2*4*4

=> area = 8cm.sq

answer is figure( A)

hope it helps

Answer:

Bushes are $9.

Bonsai trees are $32.

Step-by-step explanation:

Bushes are b and bonsai trees are t.

15b + 8t = $391

9b + 5t = $241

15b + 8t = $391 × 3 and 9b + 5t = $241 × 5

= 45b + 24t = $1173 and 45b + 25t = $1205

(45b + 24t = $1173) - (45b + 25t = $1205)

t = 1205 - 1173

t = $32

Apply to 15b + 8t = $391.

15b + 32 × 8 = $391

15b = $391 = 32 × 8

15b = $391 - 256

15b = $135

x = ($135 ÷ 15) = $9

Answer:

The answer is 600

Step-by-step explanation:

Multiply 6 by 1000, and 10 by x.

The equation would be 6000=10x.

Now, just solve for x by dividing by 10 which equals to 600.

Step-by-step explanation:

In order to be similar triangles the corresponding angles must be equal .

So in your question

There are two triangles with different values of angles.

So the given triangles are not similar.

Hope it will help :)

Answer:

The smaller number is 12 & greater number is 15.

Answer:

12

Step-by-step explanation:

let the numbers be x and y and x>y

x-y=3

x+y=27

add

2x=30

x=30/2=15

15+y=27

y=27-15=12

Answer:

The answer is E) 1

Step-by-step explanation:

can you make me brainliest please

Answer:

x<1

Step-by-step explanation:

Answer:

bob

Step-by-step explanation:

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Answer:

10 sandwiches

Step-by-step explanation:

I included the work below in the photo. Hope this helps! :)

Answer:

(-2, -6)

Step-by-step explanation:

Given the simultaneous equation

3x-y=0 ... 1

2x+y=-10 ... 2

Add both equations to eliminate y

3x + 2x = 0 - 10

5x = -10

x = -10/5

x = -2

Substitute x = -2 into 1

3(-2)- y = 0

-6 - y = 0

-y = 0+ 6

-y = 6

y = -6

Hence the coordinate (x, y) is (-2, -6)

Answer:

Step-by-step explanation:

- The # in front of x will be the number that hits on the y-axis

- The # after x or the slope, ex: y = -1/2x + 2, is how much you move to hit the next point on the graph

-  2 would actually be 2/1 so move up 2 and right 1 (if the number or fraction is negative then go up and to the left

- So y = -2x - 1/2, negative slope. Start at -2 on y-axis and go up 1 then left 2.