Jonny cut a plank of wood so that it is 50% shorter.

It is now 42cm long.

How long was the plank of wood before Jonny cut it?

Answers

Answer 1

[tex]42 \: cm \times 2 = 84 \: cm[/tex]

The plank of wood was 84 cm bejore Jonny cut it.

//

Proof:

[tex]84 \times 0.50 = 42 \: cm[/tex]


Related Questions

Graph 2.4 on the number line. Please.

Answers

Answer:

It is the second line after 2. the number line goes up in 0.2

Step-by-step explanation:

The school store has 2400 pencils in stock and sells an average of 20 pencils per day. The manager reorders when the the number of pencils in stock is 600.

Answers

Answer:

90 days until the next restock

Step-by-step explanation:

2400 - 600 = 1800

1800/20 = 90 days

Find x
16 ft
х
12 ft

Answers

Answer:

x = 20

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² = 12² + 16² = 144 + 256 = 400 ( take the square root of both sides )

x = [tex]\sqrt{400}[/tex] = 20

Cora read one sixth of her book on day one. She read one fourth of her
book on day two. What fraction of her book did she read in two days?

Answers

Answer:

[tex]\frac{5}{12}[/tex]

Step-by-step explanation:

[tex]\frac{1}{6}[/tex] + [tex]\frac{1}{4}[/tex] =  finding common denominator which is 12.   so multiply both sides  with what makes them 12 ...... [tex]\frac{1}{6}[/tex]  [tex]\frac{2}{2}[/tex]    & [tex]\frac{1}{4}[/tex][tex]\frac{3}{3}[/tex]  then add = [tex]\frac{5}{12}[/tex]

The answer is 5/12 your welcome !

Help meh plzzzzzzzz Quick

Answers

Answer:

51..................................................................................

Step-by-step explanation:

ggs bad anwser

Answer:

Sales tax is $5.6    Total cost is $75.6

Step-by-step explanation:

It's called math :D

:
Jeremy has hit 5 home runs so
far this season. This represents
20% of his yearly goal. How many
more homeruns does he need to hit
to achieve his goal?

Answers

Answer:

20 home runs left to hit.

Step-by-step explanation:

Ok so 100%/20% is 5. Increment 5 home runs until you get to 100%. So, 20% =5, 40% = 10, 80% = 15, and 100% = 20

Answer: 25 home runs

Step-by-step explanation:

20% = 5

40% = 10

80% = 20

80% + 20% = 100%

5+10=25

Carl rented a bounce house for his little brother's birthday party. The company charges a base rental charge of $95.25, plus a certain amount per hour. Carl's little brother's party lasted 4 hours, and costs $179.72. Carl plans to rent a bounce house for his little sister's birthday party for 6 hours for about $200. Is this a reasonable estimate? A. Yes, the estimate is reasonable. B. No, the estimate should be lower. C. No, the estimate should be higher.

Answers

Answer:

C. No, the estimate should be higher.

Step-by-step explanation:

Carl's brother party

Fixed charge = $95.25

Number of hours = 4 hours

Hourly charge = x

Total cost = $179.72

179.72 = 95.25 + 4x

179.72 - 95.25 = 4x

84.47 = 4x

x = 84.47/4

x = 21.1175

Hourly charge = $21.1175

Carl's little sister party

Estimated total charge = $200

Number of hours = 6

Fixed charge = $95.25

Hourly charge = $21.1175

Total charges = 95.25 + 6(21.1175)

= 95.25 + 126.705

= 221.955

Total charges = $221.955

C. No, the estimate should be higher

Triangle LMN has L at (1, -1) and M at (2, 3). Triangle L'M'N' has L' at (-1, -1), M' at (3, -2), and N' is at (-3, 0). What are the coordinates of vertex N?
N (3, 0)

N (0, 0)

N (0, 3)

N (0, -3)

Answers

Answer:

The answer is N(0,-3)

Triangle Theorem ( sss, sas, asa )

Answers

Answer:

A.) SSS

B.) HL

C.) SAS

On January 29, 2019, Australian authorities confiscated 157.7 kilograms of heroin with an estimated street value of 77 million AUD (Australian dollars). The exchange rate at the time was 1 USD = 1.42 AUD. Based on this information, what was the value in U.S. Dollars per pound for the heroin? Round your answer to the nearest thousand dollars.

Answers

Answer: $343849

Step-by-step explanation:

Since the exchange rate at the time was 1 USD = 1.42 AUD, therefore we will convert 77 million AUD to dollars which will be:

= 77 million / 1.42

= $54.225 million

Therefore, the value in U.S. Dollars per pound for the heroin will be:

= $54.225 million / 157.7

= $343849 pee pound

Eva and Jimmy share and amount of money in the ratio of 8:5 Eva gets 21 more than Jenny. How much do they get each

Answers

Answer:

Eva:$56

Jimmy/Jenny:$35

Step-by-step explanation:

diff->8-5=3

3u->$21

1u->$21÷3=$7

Eva->$7×8=$56

Jimmy/Jenny->$7×5=$35

yo is arjun du.mb
csCsscasxsCSc

Answers

What...huh?? English please

Answer:

ok kapoor

Step-by-step explanation:

what is 3x + 7.9 = 9.1

Answers

Answer:

= 0 . 4

Step-by-step explanation:

Answer:

Please refer to the attachment above

Hope it helps

Directions: Identify the slope and y intercept. Then write an equation in y = mx + b form. 9) 4 3 2 1 0 -3 -2 0 1 2 -1 -1 -2 -3 -4 Slope = y - intercept = Equation = Type here to search i a​

Answers

Answer:

dbjsbysdtsagkpadh2igdgdsdHAHAHAHAHAHAHAHAHAHAHAHAHAHAHHAHA

Answer:

Step-by-step explanation:

Joe would like to paint a rectangular shaped wall. The measures of dimensions of the wall are 8 inches by 4 inches. Every 1 inch represents 3 feet of the actual wall. If the cost of the painting is $2.50 per square feet, find the total cost of paint needed for the entire wall.

Answers

Answer:

$90

Step-by-step explanation:

8 + 4 = 12

12 x 3 (3 feet for each inch) = 36

36 x 2.50 (cost per square foot) = $90

Answer:

$240

Step-by-step explanation:

8 x 4 is 32

32 x 3 is 96

96 x 2.5 is 240

Without using a calculator, order the following numbers from least to greatest.
9
8
(Square root sign)72

Answers

8, (square root) 72, 9

The aspect ratio, the ratio of the width to the height, of various computer monitors is listed in the table below.​

Answers

Answer: Monitor C is the different one.

Step-by-step explanation:

The aspect ratio is the relationship between width and height.

So we only need to see the quotients between width and height for each monitor and see which quotient is different.

Monitor A:  

Quotient = 1152/864 = 1.333....

Monitor B:

Quotient = 800/600 = 1.333...

Monitor C:

Quotient = 1920/1080 = 1.777...

Monitor D:

Quotient = 1600/1200 = 1.333...

We can see that the one with a different aspect ratio is monitor C.

Two ways you can solve the following equation : 20 = 5(-3+x)

Answers

Answer:

x=7

Step-by-step explanation:

Answer:

Step-by-step explanation:

Method one:

You divide both sides by 5 and get

4= -3+x

7=x

Method 2:

You can distribute the 5

20= -15+5x

35=5x

x=7

The exponent of a linear function is ___.
A. 2
B. 1/2
C. 1
D. X

Answers

The equation above, you can see that the exponent of a linear function is x

What are exponential function?

Exponential functions are inverse of logarithmic functions. The standard  exponential function is expressed as:

f(x) = a(b)^x

From the standard equation

a is the base

x is the exponent

b is the rate of change

From the equation above, you can see that the exponent of a linear function is x

Learn more on exponential function here: https://brainly.com/question/2456547

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a new computer comapny has its sales increasing by 3% each week. A second computer company has its sales decreasing by $100 each day. the first company had $500 in sales when the second company had $7000 in sales. after approximately how many weeks will the sales for the two companies be the same?
A. 9
B. 13
C. 49
D. 63

Answers

Answer:

49

Step-by-step explanation:

What was the total amount of water in the tank before it was drained

450 gallons

510 gallons

560 gallons

570 gallons​

Answers

The answer is 560 gallons

Total amount of water before it was drained will be 510 gallons.

What is rate?

"It is a ratio in which the two terms being compared have different units."

For given question,

We have been given  a table for  the number of gallons of water left in the tank after being drained for two amounts of time.

First we find the rate at which the water was drained from the tank.

[tex]r=\frac{450-330}{30-10}\\\\ r=\frac{120}{20}\\\\ r=6~gallons~per~minutes[/tex]

Let the amount of water in the tank before it was drained = 'x' gallons

And the initial time = 0

Using the rate formula,

[tex]r=\frac{x-450}{10-0}\\\\ 6=\frac{x-450}{10}\\\\ 60=x-450\\\\x=450+60\\\\x=510~gallons[/tex]

Therefore, total amount of water before it was drained will be 510 gallons.

Learn more about rate here:

https://brainly.com/question/23634231

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How do I find the value of x?

Answers

Answer:

2[tex]\sqrt{3}[/tex]

Step-by-step explanation:

tan = opp/adj

tan(30) = x/6         ** multiply by 6 on both sides

6tan(30) = x

[tex]2\sqrt{3}[/tex] = x

WILL GIVE BRAINLIEST
Joshua's goal is to sell more than 20 items at a farmers' market. So far, he has sold 6 items. Each customer buys 2 items.

Let c represent the number of additional customers Joshua must have to meet his goal.

Drag and drop the answer into the box to correctly complete the statement.

Joshua needs to have more than Response area additional customers to meet his goal.

Answers

Answer:

7 or more customers

Step-by-step explanation:

6 +2c = >20

The equation
5
w
+
16
=
61
models how many weeks,
w
, it takes a puppy to reach a weight of
61
ounces after being born. If the puppy gains the same amount of weight each week, how many weeks does it take the puppy to reach
61
ounces?

Answers

Answer:

9 weeks

Step-by-step explanation:

5w+16=61

Subtract 16 from both sides of the above equation.

5w+16-16=61-16

5w = 45

w = 9

1). What must you do in order to solve the equation?
15 = m - 5

Answers

Answer:

20

Step-by-step explanation:

15 + 5= 20

Answer:

carry across the-5

minus turns into a +

looks like this

+5+15=m

why doesn't an elephant smoke?

Answers

Answer:

Because it can't

Step-by-step explanation:

Answer:

i dont know, y does it smoke?

Step-by-step explanation:

Tamia has four more coins in her collection than Troy. The number of coins in Troy's collection is two raised to the power of eight. Enter the missing part of the numerical expression that represents the number of coins in Tamia's collection. □+28

Answers

Answer:68

Step-by-step explanation: 8 x 8 = 64

4 more, 68

1. You need at least 3 pounds of fruit to make muffins. Blueberries cost
$4 per pound, strawberries cost $3 per pound and you can spend at
most $21 on fruit. (Create a system of inequalities)

Answers

Answer:

Step-by-step explanation:

b and s are the pounds of blueberries and strawberries, respectively.

b+s ≥ 3

4b + 3s ≤ 21

The system of inequalities can be represented as x+y≥3 and 3x+4y≤21.

What is inequality?

Inequality shows relation between two expression which are not equal to each others.

Given that,

Cost of blueberries = $4 per pound

and cost of strawberries = $3 per pound

Let strawberries are x pound and blueberries are y pound, according to condition there should at least 3 pounds of muffins,

Therefore, x+y≥3

And maximum amount is $21

Therefore, 3x+4y≤21

The inequalities are x+y≥3 and 3x+4y≤21.

To know more about Inequality on:

https://brainly.com/question/20383699

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Find the measure of each angle in the isosceles trapezoid WXYZ.

Answers

Answer:

Given each largest angle is x, then the other angles are x, x, 180 -x, 180 - x

This is because of the properties of isosceles triangle

Given m||n, find the value of x.
xo
170
o
Answer:
Submit Answer

Answers

Answer:

sorry for the points

Step-by-step explanation:

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