Omg i'm confuse 

7(x+4) =9(x -2)

Answers

Answer 1
Answer: 7(x+4) =9(x -2) \n 7x+28=9x-18\n 2x=46\n x=23
Answer 2
Answer: 7(x+4) = 9(x-2)
7x+28 = 9x-18
28+18 = 9x-7x
46 = 2x
46/2 = x
23 = x

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Please help I only have today to do this type of work and I'm struggling!! Alice, Raul, and Maria are baking cookies together. They need cup of flour and cup of butter to make a dozen cookies. They each brought the ingredients they had at home. Alice brought cups of flour and cup of butter, Raul brought cup of flour and cup of butter, and Maria brought cups of flour and cup of butter. If the students have plenty of the other ingredients they need (sugar, salt, baking soda, etc.), how many whole batches of a dozen cookies can they make?

the base of a regular pyramid is a hexagon whose perimeter is 84 feet. the volume of the pyramid is approximately 4,677.85 cubic feet. find the height of the pyramid.

Answers

Answer:

The height of the pyramid is 27.56\ ft

Step-by-step explanation:

we know that

The volume of the pyramid is equal to

V=(1)/(3)BH

where

B is the area of the base of the pyramid

H is the height of the pyramid

step 1

Find the area B of the regular hexagonal base

we know that

The perimeter of a regular hexagon is

P=6b

where

b is the length side of the hexagon

we have

P=84\ ft

substitute

84=6b

solve for b

b=14\ ft

Remember that the area of a regular hexagon is the same that the area of six equilateral triangles

Determine the area of the six equilateral triangles, applying the formula of the law of sines

B=6[(1)/(2)b^2sin(60\°)]

substitute the value of b

B=6[(1)/(2)(14)^2sin(60\°)]

B=509.22\ ft^2

step 2

Find the height of the pyramid

V=(1)/(3)BH

we have

V=4,677.85\ ft^3

B=509.22\ ft^2

substitute

4,677.85=(1)/(3)(509.22)H

solve for H

14,033.55=(509.22)H

H=14,033.55/(509.22)H

H=27.56\ ft

Can you evaluate 6x-3y-3x?

Answers

Answer:

= 3x - 3y

Step-by-step explanation:

What is the hardest part/ subject in math?

Answers

In my opinion, everything can seem hard, but as long as you practice, you'll get the hang of it. 

The hardest part may have to be sigma notation, which includes a-lot of formulas and calculus. 
Fractions is the hardest for me.

When h has the value 4, calculate 5h - 3? Urgent help needed!!!!!!!

Answers

5h - 3

First, substitute in the 4 for the h. / Your problem should look like: 5(4) - 3
Second, multiply 5 × 4 to get 20. / Your problem should look like: 20 - 3
Third, subtract. / Your problem should look like: 17

Answer: 17

In a survey of 3,000 people who owned a certain type of car, 1,050 said they would buy that type of car again. What percentage of the people of the people surveyed were satisfied with the car?

Answers

34%
This is because when you divide 1,050 by 3,000 you get 0.34 then turn that into a percent then there you go

Kim and Courtney share a 16-ounce of box of cereal.  By the end of the week, Kim has eaten 3/8 of the box, and Courtney has eaten 1/4 of the box of cereal.  What fraction of the box is left?

Answers

³/₈

Further explanation

We will solve the problem of subtraction between fractions.

Given:

Kim and Courtney share a 16-ounce of the box of cereal.  

By the end of the week:

  • Kim has eaten ³/₈ of the box, and
  • Courtney has eaten ¹/₄ of the box of cereal.  

Question:

What fraction of the box is left?

The Process:

Kim has eaten ³/₈ of the box of cereal. Let's calculate how many fractions of the box are left after Kim has eaten them.

\boxed{ \ 1 - (3)/(8) = \ ? \ }

\boxed{ \ (8)/(8) - (3)/(8) = (5)/(8) \ }

Hence, the rest of the box after Kim has eaten ³/₈ of the box is

\boxed{\boxed{ \ (5)/(8) \ }}

Furthermore, Courtney has eaten ¹/₄ of the box of cereal. Let's calculate how many fractions of the box are left again after Courtney ate the remaining part since Kim had eaten it before.

\boxed{ \ (5)/(8) - (1)/(4) = \ ? \ }

Before we subtract, the denominator must be equated. Prepare ¹/₄ to be ²/₈. The numerator and denominator are multiplied by two.

\boxed{ \ (5)/(8) - (2)/(8) = (3)/(8) \ }

Thus, the fraction of the box left after Kim and Courtney have eaten is \boxed{\boxed{ \ (3)/(8) \ }}.\boxed{ \ The \ Answer \ }

- - - - - - - - - -

Quick Steps:

\boxed{ \ 1 - (3)/(8) - (1)/(4) = \ ? \ }

\boxed{ \ (8)/(8) - (3)/(8) - (2)/(8) = \boxed{ \ (3)/(8) \ } \ }

The summary scheme is as follows:

Initial conditions

\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot} \rightarrow \boxed{ \ one \ part = (8)/(8) \ }

Kim has eaten ³/₈ of the box: \boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\rightarrow \boxed{ \ (3)/(8) \ }

Courtney has eaten ¹/₄ (or ²/₈) of the box: \boxed{\cdot}\boxed{\cdot}\rightarrow \boxed{ \ (2)/(8) \ }

Final conditions

\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot} is subtracted by \boxed{\cdot}\boxed{\cdot}\boxed{\cdot} and is subtracted by \boxed{\cdot}\boxed{\cdot} equal \boxed{\cdot}\boxed{\cdot}\boxed{\cdot} as the remaining part \rightarrow \boxed{\boxed{ \ (3)/(8) \ }}

Learn more

  1. The sum of ¹/₆, ²/₃, and ¹/₄ brainly.com/question/3298276#
  2. ²/₇m - ¹/₇ = ³/₁₄ solve step by step brainly.com/question/4853649
  3. What is the amount of apple juice in each bottle? brainly.com/question/5798698

Keywords: Kim and Courtney, share, a 16-ounce of the box of cereal, ³/₈ of the box, ¹/₄, what fraction of the box is left, ³/₈, subtraction, the denominator, the numerator

No. of ounces Kim ate = 3/8 * 16 = 6 ounces
No. of ounces Courtney ate = 1/4 * 16 = 4 ounces
No. of ounces left = Total amt. of cereals - Kim's share - Courtney's share
                          = 16 - 6 - 4 =6 ounces
Fraction of left over cereal = 6/16 = 3/8