The area of a pentagon increased by 27 is the same as four times the area of the pentagon, minus 15. What is the area of the pentagon?

Answers

Answer 1
Answer: equation
a + 27 = 4a - 15
3a - 15 = 27
3a = 42
a = 14

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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?
I really don't know where to go with this. I just need help with it fast. because idk what I'm doing I'm giving max points.
50 Brainly Points answer the question

InstructionsSearch your home for a rectangular prism. Some examples are a cereal box, a CD case, or a coffee table. Measure your prism using appropriate units, such as inches, centimeters, or feet. Complete the following. Show all work for calculations.1. List the dimensions of your box. Be sure to include the units (in, cm, ft, etc.).2. Describe the shape of the cross section when the box is cut parallel to the base.3. What is the surface area of the box? 4. What is the surface area of the box if it is scaled up by a factor of 10?5. What is the volume of the box?6. What is the volume of the box if it is scaled down by a factor of $1/10$?Can I get Help Please

Answers

So far, you've requested an activity, a description, and seven numerical answers, all in return for five points. Suppose you come back and tell us a little bit about which parts you're having some trouble with, and we can focus on those.

Answer:

Rectangular prism

I chose a box of cereal.

Part 1)List the dimensions of your box. Be sure to include the units (in, cm, ft, etc.).

Length: 20 cm

Width: 8 cm

Height: 32 cm

Part 2).

 Describe the shape of the cross-section when the box is cut parallel to the base.

The shape of the cross-section would be a rectangle in dimensions.

20 cm x 8 cm

Part 3)

What is the surface area of the box? 

surface area=2*area of the base + perimeter of the base*height

area of the base=20*8=160 cm²

perimeter of the base=2*[20+8]-----> 56 cm

height=32 cm

surface area=2*160+56*32------> 2,112 cm²

the answer part 3) is

2,112 cm²

Part 4)

What is the surface area of the box if it is scaled up by a factor of 10?

we know that

surface area of the larger box =[scale factor]²*surface area original box

scale factor=10

surface area original box=2,112 cm²

so

surface area of the larger box=10²*2,112-----> 211,200 cm²

the answer part 4) is

211,200 cm²

Part 5) 

What is the volume of the box?

volume of the box = L*W*H 20*8*32-5,120 cm³

the answer Part 5) is

5,120 cm³

Part 6) 

What is the volume of the box if it is scaled down by a factor of 1/10?

we know that

the volume of the smaller box =[scale factor]³volume original box

scale factor=1/10

volume original box=5,120 cm³

so

volume of the smaller box =[1/10]³*5,120 5.12 cm³

the answer part 6) is

5.12 cm³

The length is 6 in., the width is 2 in., and the height is 16 in.

PLZZZZZZ HELP ME !!!! I’ll give 35 points !!! Solve the following system of equations graphically on the set of axes below.
y = 3x – 8
y = -x – 4

Answers

Answer:

slope is 3 and -1

Step-by-step explanation:

Answer:https: y+3x-8

Step-by-step explanation: first: put your first point at -8

second: then from the point at -8, go up three times, and over to your right one time

now do that however many times you need to

explanation:

- the y-intercept is the initial value which is -8. the line must pass through -8 so you would start your line at -8

- your slope is 3x. slope is  so you rise 3 time and over 1 time

y = -x – 4 -4.0

y-intercept = -4/1 = -4.00000

There are 36 pencils in 6 packs. Igor wants to know how many pencils are in 1 pack. Elsa wants to know how many pencils are in 3 packs.

Answers

6 pencils are in 1 pack. & 18 pencils are in 3 packs.

What is division?

Division is the process of splitting a number or an amount into equal parts.

Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication.

here, we have,

There are 36 pencils in 6 packs.

Igor wants to know how many pencils are in 1 pack.

i.e. we have to 36/6

                       =6

Elsa wants to know how many pencils are in 3 packs.

i.e. we have to 3*6

                      =18

Hence, 6 pencils are in 1 pack. & 18 pencils are in 3 packs.

To learn more on division click:

brainly.com/question/21416852

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Igor: 6 pencils: 1 pack
Elsa: 18 pencils: 3 packs

consider solving the equation for x 3 (3x + 4) —5 = ax + b Which statements are true about the solution to the equation when substituting values for a and b as as specified? Select all that apply.A. If a=−3 and b=4 , then there is exactly one solution to the equation.B. If a=−9 and b=13 , then there is no solution to the equation.C. If a=9 and b=−2 , then there is no solution to the equation.D. If a=−3 and b=−5 , then there are infinitely many solutions to the equation.E. If a=9 and b=7 , then there is exactly one solution to the equation.

Answers

3 (3x + 4) —5 = ax + b 

Lets simplify

9x + 12 - 5 = ax + b
9x + 7 = ax + b

The answer would be C because then it would have a coeiffient the same, and a "lonely" number different, which gives it NO solution. 

Answer: C. If a=9 and b=−2 , then there is no solution to the equation.

What 3 numbers can you multiply to get 252 as your product

Answers

Three numbers you could use to get a product of 252 is 3,2, 42.
3*2=6
6*42=252
So basically it is 242 divided by something ok thanks sorry

MathematicalUse Number Sense Duane and Mick are savingtheir money to build a tree house. Duane adds $5 to their piggybank every other week. Mick adds $2 every week. So far they havesaved $45. How many weeks have they been saving their money?

Answers

assuming they start saving at 0 dollars

45=total=duanesavings+micksavings
duanesavings=confusing, I will explain
mick savings =amount saves per week times number of weeks

duane saves 5 dollars every other week, aka 2.5 dollars per 1 week
DS=2.5w
MS=2w

since they save at same time and at that week, when the weeks are equal (w=w), 45 it total

DS+MS=45
2.5w+2w=45
4.5w=45
divide by 4.5 both sides
w=10

10 weeks