Two friends argue over who brushes their teeth more often. To settle the argument, they keep track of the number of mornings and nights they brush and calculate a probability. These are shown in the table.

Answer: 201 feet

Step-by-step explanation:

It should be noted that 1 foot = 12 inches. Therefore, 36 inches = 36/12 = 3 feets.

Each cotton uses 3 feets in length. Therefore, 67 curtains will use:

= 67 × 3 feets

= 201 feets

Answer:

3*16=48

Step-by-step explanation:

If 1/16th of a pizza is 3 dollars, 1/16*16=1    3*16=48

Therefore,

1 pizza is $48

You really paying that much for one pizza

18 is answer i think

Answer:

7) 75.4 yd

8) 34.56 mi

6) 81.68 cm

Step-by-step explanation:

The formula of circumference is: circumference (C) = 2 * π * r

7) The radius = 12 yd

π = 3.14

We can solve for C:

C = 2πr

C = 2(3.14)(12 yd)

C = 75.4 yd

8) The radius = 5.5 mi

π = 3.14

Solve for C:

C = 2πr

C = 2(3.14)(5.5 mi)

C = 34.56 mi

6) The diameter is 26. The radius is one half of the diameter; so the radius is 13.

We can solve for C:

C = 2πr

C = 2(3.14)(13 cm)

C = 81.68 cm

Hope this helpsss <3

Answer:

7) 75.36  8)34.54 9)81.64

Step-by-step explanation:

you can find this by using the formula diameter times pi (for pi use 3.14) or the formula 2times pi times radius. and for the diameter just multiply the radius by 2.

Lee sold 16 hats.

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given:

Cost of 1 hat= $8

Cost of shirt = $12

Total cost of spirit wear= $272

let the number of hats sold be x

and, let the number of shirts sold be y

So, 8x+ 12y= 272

and, x+ y= 28

Solving the above equations we get

8(28- y) + 12y= 272

224 - 8y + 12y = 272

4y = 48

y = 12

and x= 28- 12 = 16

Hence, Lee sold 16 hats.

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Answer:

X intercept is (-40,0) why intercept is (0,15)

Step-by-step explanation:

youyou will be able to tell this by looking at the graph and counting where the points are

Answer:

A system has infinitely many solutions when it is consistent and the number of variables is more than the number of nonzero rows in the rref of the matrix. For example if the rref is ��has solution set (4-3z, 5+2z, z) where z can be any real number.

Answer:

10 maybe sorry if wrong

Step-by-step explanation:

22-x x=20 so that should be 2 then u do 2x5 =10

Answer:

Again assuming we're cleared for immediate take off, it takes around 20 minutes to climb to cruise altitude, at an average ground speed of (say) 200 knots. This means we've covered about 70 miles, which the cruising aircraft would have covered in just over 10 minutes. So this final phase has cost us another 10 minutes

Step-by-step explanation:

make the coefficients same

then if sign are same subtract the one you wanna cancel it then here it goes

lam gonna start making coefficient of x sam like this:

4.X+7y= -37

1.4X-3y=7

then i will subtract all x or cancel to each other then

4X+28y= -148

-

4X-3y=7

and then -×-=+

add all y

31y=141

y= 4.55 then we take one of the equation then substitute y to 4.55 so i chose first equation

X+7(4.55)=-37

X+31.85=-37

so take 31.85 to the side it will become -31.85

then X=-37-31.85

X=68.85

i hope that it will help you

Answer: D

Step-by-step explanation:

Answer:

The value of x is 69°

Step-by-step explanation:

In a right angle triangle, if m and n are the two acute angles on it, then

That means if sin(m) = cos(n), then m + n = 90°

Let us use these facts to solve the question

∵ sin(21°) = 0.358

∵ cos(x°) = 0.358

→ That means sin(21°) = cos(x°)

∴ sin(21°) = cos(x°)

→ By using the facts above

∴ 21 + x = 90°

→ Subtract 21 from both sides

∵ 21 - 21 + x = 90 - 21

∴ x = 69°

∴ The value of x is 69°

Answer:

The relationship between F and C is proportional

Step-by-step explanation:

The relationship between Celsius and Fahrenheit temperatures is a direct proportionality. Both scales have their ice and steam points as well as their fundamental intervals.

When the temperature in Celsius increases, the temperature in Fahrenheit increases and vice versa.

Answer:

Dividing both sides of 5x = 4 by 5 yields x = 4 _. 5 . The value of x can now be ... tuting −1 for a into the equation b = –a + 3 gives b = −(−1) + 3, or b = 4. ... ___. 82 − (2i)2 . Since i2 = −1, this can be simplified to 24 − 6i − 40i − 10. __.

hope this helps also Brainliest please:)

Answer:

b=7a+4z

Step-by-Step Explanation

I just took the test, this is right, but I'll give you a step-by-step because I want a Brainiest :D

b-4z over 7=a    

Multiply both sides by 7

b-4z=7a

Aded 4z to both sides

Your answer is b=7a+4z

Please give me Brainiest!!!!

Answer:

a) 72 : 64 and 27 : 4

Step-by-step explanation:

a) 72 : 64 and 27 : 4

72 /64 = 27/4

9/8 ≠ 27/4

Not equal

b) 90 to 18 and 5 to 1

90 : 18 = 5/ 1

5/1 = 5/1

Equal

c) 25 to 10 and 10 to 4

25 :10 and 10 : 4

25/10 = 10/4

5/2 = 5/2

Equal

d) 6 : 7 and 30 : 35

6/7 = 30/35

6/7 = 6/7

Equal

The pair of ratios that is not equal is

a) 72 : 64 and 27 : 4

Answer:

1500+337.50 = $1,837.5

Step-by-step explanation:

You want to calculate the interest on $1500 at 4.5% interest per year after 5 year(s).

The formula we'll use for this is the simple interest formula, or:

I = P x r x t

Where:

P is the principal amount, $1500.00.

r is the interest rate, 4.5% per year, or in decimal form, 4.5/100=0.045.

t is the time involved, 5....year(s) time periods.

So, t is 5....year time periods.

To find the simple interest, we multiply 1500 × 0.045 × 5 to get that:

The interest is: $337.50

Answer:

-7

Step-by-step explanation:

7x+28=-21

7x=-49

x=-7

Answer:

y=2x-2

Step-by-step explanation:

y intercept is (0,-2) so that is b value. slope is 2 so that is your m value

Answer:

First box:

1/8 of 5, 5 x 1/8, 5 divided by 8

Second Box:

8 divided by 5, 1/5 of 8,

Third Box:

5 x 8

Step-by-step explanation:

Answer:

it should be 5.5

Step-by-step explanation:

cross multiply and solve as an equation

Answer:yea its 3

Step-by-step explanation:

6/8.50=2 we get 35 ticket did help

Answer:

lkj  l l  /nkmpnok

Step-by-step explanation:

Answer:

£95

Step-by-step explanation:

Given that:

Whitney's initial amount = £265

Nancy's initial amount = £180

Let amount each spent = x (amount is the same)

After spending Whitney has twice as much money as Nancy.

Amount spent by each?

(Whitney's initial amount - x) = 2(Nancy's initial amount - x)

265 - x = 2(180 - x)

265 - x = 360 - 2x

-x + 2x = 360 - 265

x = £95

Hence, they both spent £95

Answer:

f(-x)= -f(x) so, the given function [tex]f(x)= x^3-2x[/tex] is Odd

Step-by-step explanation:

We need to determine if the function [tex]f(x)= x^3-2x[/tex] is Even, Odd, or Neither.

Determining if a function f(x) is even or not we put x=-x and check

If f(-x)=f(x) the function is even

if f(-x)= -f(x) the function is odd

So, Putting x =-x and determining if the given function [tex]f(x)= x^3-2x[/tex] is Even, Odd, or Neither.

[tex]f(x)= x^3-2x\\Put \ x=-x\\f(-x)=(-x)^3-2(-x)\\f(-x)=-x^3+2x\\f(-x)=-(x^3-2x)\\f(-x)=-f(x)[/tex]

As f(-x)= -f(x) so, the given function [tex]f(x)= x^3-2x[/tex] is Odd

Answer:

29

Step-by-step explanation:

551/19=29

Answer: A, i think -_-

Answer:

the answer is going to be 2 /9 times the reciprocal of 1/2 so the answer is 4/9

Answer:

4/9

Step-by-step explanation:

2/9 / 1/2

= 2/9 x 2/1

= 2x2 / 9x1

=4/9x1

=4/9

The value of x is 7.

Option C is the correct answer.

It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.

We have,

Two similar triangles.

56/48 = x/6

Cross multiply.

x = (56 x 6)/ 48

x = (7 x 6)/6

x = 7

Thus,

x is 7.

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Answer:

f(-2)= -4

Step-by-step explanation:

f(-2) = (-2)² +3(-2) - 2

f(-2) = 4 - 6 - 2

f(-2) = -4

Answer: 2

Step-by-step explanation:

theres a chance i could be right