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Readme [11.4K]
3 years ago
10

6th grade math, help me please:)

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
6 0

Answer:

8:3 is the ratio of kids to adults

32 kids, so there are 12 adults

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2x -3< -1 or -3x < -15
pogonyaev

Answer:

x<1 or x>5

Step-by-step explanation:

2x -3< -1 or -3x < -15

Solve them separately then put them back together

2x-3 < -1

Add 3 to each side

2x-3+3<-1+3

2x<2

Divide by 2

2x/2 <2/2

x<1

-3x < -15

Divide each side by -3, remembering to flip the inequality

-3x/3 > -15/-3

x>5

Put them back together

x<1 or x>5

4 0
3 years ago
HEYYYYYYYYYYYYYYYYYYY PLEASE ANSWER WILL GIVEEEE BRAINLISTTTTTTTTTTT
Mice21 [21]

Answer:

22 square feet

Step-by-step explanation:

the surface area is equal to the sum of the areas of all 6 sides of the parallelogram or the so calles box. so you are left to solve the following equation:2*(2*1+3*1+3*2)

3 0
3 years ago
Help pleaseeeeeeeeeeeeeeeeeeeeeee
Dima020 [189]

Answer:

B'C'D'

Step-by-step explanation:

The figure was just translated, without any deformation, these are similar figures... so their corresponding angles are the same.

Since it was just moved down by 4 units, none of the angles were changed, and none of the side lengths were changed.

Since vertex C' corresponds to vertex C, the angle B'C'D' corresponds to original angle BCD.

8 0
3 years ago
prove algebraically that the straight line with equation x = 2y + 5 is a tangent to the circle with equation x^2 + y^2 = 5, i ha
Brums [2.3K]

Answer:

I dont even know

Step-by-step explanation:

too complicated

8 0
3 years ago
Read 2 more answers
Yea yea you know i need help my brains tiny thank you for everything and everyone helping
Darina [25.2K]

Answer: r=6

Step-by-step explanation:

<u>Step 1: Substitute for the known variables</u>

we know that the formula to find the volume of a cylinder is <u>V= πr²h</u>

π= 3.14

h= 12

r= ?

v=1,357

Plugging the numbers we know into the formula, we get:

1,357= 3.14xr²x12

1,357= 3.14x12xr² (because with the commutative property of multiplication you can multiply in any order)

1,357= 37.68 x r²

<u>Step 2: Get the variable term (the letter term) on the left</u>

37.68 x r²= 1,357

Now, divide by 37.68. (I know to divide because when you switch the 37.68x r² the other way around to  r²x37.68, you are clearly multiplying and must do the inverse operation (opposite of multiplication; division) to solve the problem.

So,

r²= 1357÷37.68

r²= 36.0138004 ----> about 36.

r²= 36

This equation isn't over yet because we still have the exponent on the r. Whenever you see a letter squared (to the power 2) in an equation, the "inverse operation" is to take the square root of both sides. Look:

r²= 36

The square root of  r² is just r, because r x r =  r²

The square root of 36 is 6, because 6x6=36.

Now we have :

r= 6

Step 3: Check

Now we have all the variables. To check to make sure the radius is correct, "plug in"

V= π r²h

1,357= 3.14x6²x12

1,357= 3.14x36x12

1,357= 113.04x12

1,357= 1356.48

They said in the question that the volume is APPROXIMATLEY 1357, so I can just round 1356.48 --> 1356.5---> 1357. Now I am sure that the radius is 6.

Hope this helps :)) also brainliest would be appreciated  :D

4 0
2 years ago
Read 2 more answers
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