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3 years ago

A rectangular room is four times as long as it is wide, and its perimeter is 70 meters. Find the width of the room.

Mathematics

2 answers:

Oxana [17]3 years ago

4 0

Sorry im wrong but the answer should be 280

zhannawk [14.2K]3 years ago

4 0

P=2(L)+2(w)
70=2(4w)+2(w)
70=8w+2w
70=10w
W=7
L=28

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After a shopping spree at Target, John realized he spent three times more money than his brother Mike. They spent a total of $16

PSYCHO15rus [73]

Answer:

John spent around $53

Step-by-step explanation:

The equation is 3x=160

Since the "x" is already by itself on one side, divide 160 by 3

160÷3=53.333⇒

Now if that's not the way IT CAN ALSO BE:

30x3+70=160! That means John spent $90

5 0

3 years ago

Which function is f(x) equal to f^-1(x)?

Morgarella [4.7K]

Answer:

c. f(x) x+1/x-1

Step-by-step explanation:

To answer this question, we need to check each answer one by one until we find the right one.

y = (x+6)/(x-6)

switch x and y

x = (y+6)/(y-6)

solve for y

x(y-6) = y+6

xy - 6x = y+6

y(x-1) = 6x+6

y = (6x+6) /(x-1) = 6(x+1)/(x-1)

f^-1(x) = 6(x+1)/(x-1)

y = (x+2)/(x-2)

switch x and y

x = (y+2)/(y-2)

solve for y

x(y-2) = y+2

xy -2x = y+2

y(x-1) = 2x+2

y = (2x+2)/(x-1)

f^-1(x) = 2(x+1)/(x-1)

y = (x+1)/(x-1) ------ correct one

switch x and y

x = (y+1)/(y-1)

solve for y

x(y-1) = y+1

xy - x = y+1

y(x-1) = x+1

y = (x+1)/(x-1)

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f(x) = f^-1(x)

6 0

3 years ago

Read 2 more answers

/ why we use this symbol

user100 [1]

The slash is an oblique slanting line punctuation mark /. Once used to mark periods and commas, the slash is now most often used to represent exclusive or inclusive or, division and fractions, and as a date separator.

5 0

3 years ago

The following is an account for a production department, showing its costs for one month:

deff fn [24]

Answer:

option (b) $9,360

Step-by-step explanation:

Given:

Goods in Process Inventory

Balance = $6,300

Direct materials = $22,500

Direct labor = $17,100

Overhead = $11,700

The cost of units in ending goods in process inventory = $5,490

The cost of started and completed units = $42,750

Now,

The cost of total Goods in Process Inventory will be

= Balance + Direct materials + Direct labor + Overhead

= $6,300 + $22,500 + $17,100 + $11,700

= $57,600

also,

Cost of units to be transferred out

= cost of total Goods in Process Inventory - ( cost of units in ending goods in process inventory )

= $57,600 - $5,490

= $52,110

Thus,

Cost of Completed Goods in Beginning Inventory

= Cost of units to be transferred out - cost of started and completed units

= $52,110 - $42,750

= $9,360

Hence, the answer is option (b) $9,360

6 0

4 years ago

There are 18 tables at a party each table can seat six people complete the equation to show which operation to use and the total

galina1969 [7]

I can't complete the equation or the sentence because they have not been provided. However, I can write you an equation to model this situation.

Answer:

18x6=108

Step-by-step explanation:

If each table seats 6 people, there are 18 tables, and we are trying to find the total number of seated persons, it can be modeled as such:

tables x capacity of each table=total number of seated persons

plug in:

18x6=108

8 0

3 years ago