My teacher taught us that we had to flip the fraction to make signs positive, but a friend of mine told me that we mustn’t do the reciprocal. Which is correct?

Answer:

1/(1/8)= 8 cubes

Step-by-step explanation:

Volume of a rectangular prism is length × height × width

Length=7 1/2

Width= 15 1/2

Height=12

Volume of the prism is therefore:

7 1/2×12×15 1/2= 1395cm3

No of cubes with edge length 1/2 to fit into the prism will be:

Volume of cube is L*W*H

1/2*1/2*1/2= 1/8cm3

Therefore the no of cubes to fit into the Prism will be:

1395/(1/8)= 11160 cubes.

If one was stuck,the number of 1/2 edge length cube to fit into 1cm will be:

Answer:

x = 4.2/3

Step-by-step explanation:

[tex] \frac{35 - 3}{20 - 4} = \\ [/tex]

[tex] \frac{32}{16} = \\ [/tex]

[tex]2[/tex]

d = 2

__________________________________

t(4) = t(1) + 3d

3 = t(1) + 3×2

3 = t(1) + 6

t(1) = 3 - 6

t(1) = - 3

__________________________________

t(n) = t(1) + (n-1)(d)

t(32) = - 3 + 31×2

t(32) = -3 + 62

t(32) = 59

Answer:

12y

Step-by-step explanation:

ill give you more websites if you need them!

Answer:

-1x - 5

Step-by-step explanation:

Okay, so I believe you need to find what 3x + 5 and -4x - 10 equals?

For this you have to add like terms:

3x - 4x = -1x

5 - 10 = -5

If this isn't it just comment and I'll edit my answer! :)

Answer:

A: Nine weeks and one day

Answer:

9 weeks and 3 days

Step-by-step explanation:

22 x 3 = 66

66 divided by 7 (days in the week) = 9.42 (9 = weeks)

9 x 7 = 63

66-63 = 3 (days)

Answer:

[tex]= 1 - \frac{\sqrt{11} }{11}[/tex]

Step-by-step explanation:

    [tex]\frac{\sqrt{11} -1}{\sqrt{11}}[/tex]

= [tex]\frac{\sqrt{11} -1}{\sqrt{11} } (\frac{\sqrt{11} }{\sqrt{11} })[/tex]

= [tex]\sqrt{11} (\sqrt{11} ) - \sqrt{11} (1) /\sqrt{11} (\sqrt{11} )[/tex]

= [tex](\sqrt{121} -\sqrt{11}) /\sqrt{121}[/tex]

= [tex](11 - \sqrt{11} )/11[/tex]

=  [tex]\frac{11}{11} -\frac{\sqrt{11} }{11}[/tex]

[tex]= 1 - \frac{\sqrt{11} }{11}[/tex]

Multiply total centimeters by kilometers per centimeters

7.5 x 15 = 112.5

Answer: 112.5 kilometers

Answer:

112.5 kilometers between the 2 cities

Step-by-step explanation:

sounds fake but in miles its 69.9

Answer:

15 pieces

Step-by-step explanation:

Hope it helps!

Answer:

15

Step-by-step explanation:

Step-by-step explanation:

2+2 = 4

4^2 = 16

16/4 = 4

4 + 3 = 7

Answer:

4.5

Step-by-step explanation:

(2+2^2) ÷ 4+3

I will use PEMDAS (parenthesis, exponents, multiplication, division, addition, and subtraction)

Calculate 2 to the power of 2 and get 4. 2x2=4

(2+4)÷4+3

Add 2 and 4 to get 6. 2+4=6

6÷4+3

divide 6 by 4 to get 1.5 6÷4= 1.5

1.5+3

add 1.5 to 3 to get 4.5. 1.5+3= 4.5

Answer:

c = 6

Step-by-step explanation:

52 = 7 + 5(c = 3)

52 = 7 + 5c + 15

52 = 22 + 5c

-5c = 22 - 52

-5c = -30

c = [tex]\frac{-30}{-5}[/tex]

c = 6

Answer:

15

Step-by-step explanation:

.15/100

Answer:

118°

Step-by-step explanation:

When two parallel lines are cut by a tranversal, then the exterior angles are supplimentary and the corresponding angles are congruent.

Therefore the angle above (15x - 17)° is also (5x + 17)° and the angle below (5x + 17)° is also (15x - 17)°.

Angles on a straight line adds up to 180°. So to know the measure of the larger angle we must both equations and equal it to 180° to find x in order to know the larger angle.

(5x + 17) + (15x - 17) = 180

5x + 15x + 17 - 17 = 180

20x = 180

20x/20 = 180/20

x = 9°

Nkw let's substitute x = 9 into the equations

5x + 17 =

5(9) + 17 =

= 62°

15x - 17 =

15(9) - 17 =

= 118°

Both equations should add up to be 180°.

Therefore the measure of the largest angle is 118°.

Answer:

206 is the answer

Step-by-step explanation:

Like and give 5 star rating

Answer:

hope it helps you.......

The required slope of the line passing through the points is m = 9/2. Option A is correct.

Given that,
To determine the slope of the line that passes through the points (2, −3.5) and (4, 5.5).

The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.

Here,

The slope of the line passing through two points is given by,
m = (y₂ - y₁) /  (x₂ - x₁)
Substitute value in the above equation
m= 5.5 +3.5 / 4 - 2
m = 9 / 2

Thus, the required slope of the line passing through the points is m = 9/2. Option A is correct.

Learn more about slopes here:

https://brainly.com/question/3605446

#SPJ5

x=81

Step-by-step explanation:

[tex] → \sf \frac{65 + 73 + 76 + x}{4} = 73.75 \\ [/tex]

[tex]→ \sf65 + 73 + 76 + x = 295 \\[/tex]

[tex]→ \sf x = 81[/tex]

Answer:

it would be 6.5% tax the reason i know this is becuase its the same tax rate thats in my state :) glad i could help

Step-by-step explanation:

Answer:

Mark me as brainlist

Step-by-step explanation:

The rate of change of one quantity in a system often causes other quantities to change. By knowing the relationship between the different quantities, we may be able to find the relationship between their rates of change.

Answer: 1 every 6 times thrown

Step-by-step explanation:

Co

Answer:

that would be 60 yards

Step-by-step explanation:

3 feet in 1 yard, so divide 180 by 3 and you get 60 yards

Answer:

y = -1/5x -4

Step-by-step explanation:

We know the y intercept is -4 since it crosses the y axis at -4

The slope is negative since it goes down from left to right

Take two points on the line

(0,-4)  and (5,-5)

We can find the slope using the slope formula

m = ( y2-y1)/(x2-x1)

    = ( -5- -4)/( 5 -0)

    = (-5+4)/ ( 5-0)

   = -1/5

The equation for the line in slope intercept form is y = mx+b where m is the slope and b is the y intercept

y = -1/5x -4

Answer:

C

Step-by-step explanation:

Givens

L = 18 inches

W = 1 foot = 12 inches

H = 14 inches

Surface Area = 2 * L*w + 2*L * h + 2*w*h

Surface Area = 2 * 18*12 +2*18*14 + 2*12*14 all in linear inches

Surface Area = 432 + 504 + 336                  all in square inches

Surface Area = 1272  in^2

Answer:

i = sqrt(-1)

Step-by-step explanation:

positive i would probably be undefined as well, and just positive sqrt(-1)

Answer: I cant see the question that you asked  putting it on the?

Step-by-step explanation:

Answer:

It will be needed 32 walking students to reach the goal

Step-by-step explanation:

1000 - 232

768/24= 32

Answer:

32 walkers.

Step-by-step explanation:

$1000 minus the $232 we have already raised from the bake sale to determine the amount we need to raise from the walk-a-thon.

1000 - 232 = 768.

So in order to raise 768, and we are raising $24 per person we will divide to figure out how many people we need.

768 / 24 = 32.

You can check this answer by multiplying 24 and 32, and then adding the 232 to the product.

24 x 32 = 768

768 + 232 = 1000

Answer: 18.75.

Step-by-step explanation:

Answer:

Step-by-step explanation:

As an example, iodine-131 is a radioisotope with a half-life of 8 days. It decays by beta particle emission into xenon-131. After eight days have passed, half of the atoms of any sample of iodine-131 will have decayed, and the sample will now be 50% iodine-131 and 50% xenon-131.

50 grams to 25 grams is one half-life. 25 grams to 12.5 grams is another half-life. So, for 50 grams to decay to 12.5 grams, two half-lives, which would take 36 days total, would need to pass. This means each half-life for element X is 18 days.

Answer:

After 8 hours or 2 half-lives, you will have 972 grams of ruthenium left.

Step-by-step explanation:

hope this helps. . . <3

Answer: he will be able to make 19 full pieces

Step-by-step explanation:

1. Start off by making 7 feet into 84 inches so the measurements can match.

2. Add 4/14 inches and the 1/8 a inch together so you know how much is being taken off 84 inches. The amount will be 35/8 inches.

3. Divide 84 inches by 35/8 inches = 19 1/5

4. The whole number of the answer will be how many boards you can make from the board.

Answer:

5 courage 1 classic

Step-by-step explanation:

So you already have 5 of the courage’s. Then, one fifth of them is 5/5=1. So 1 classic