knife is 3 times cost of spoon
9 spoons and 12 knifes is £82.80
what is 1 knife

Answers

Answer 1

Answer:

The cost of spoon is £1.84 and therefore the cost of one knife is £5.52.

Given :

A knife is 3 times the cost of the spoon. 9 spoons and 12 knives costs £82.80.

Solution :

This question is solve by creating a linear equation and linear equations are nothing but yet another subset of "equations". Linear calculations that requires more than one variable can be done with the help of linear equations. The standard form of a linear equation in one variable is ax + b = 0.

Now let x be the cost of spoon. Than the cost knife is 3x. It is given that 9 spoons and 12 knives costs £82.80.

[tex]9x + 12 x (3x) = 82.809x + 36x = 82.8045x = 82.80x = 1.84[/tex]

Therefore the cost of 1 knife = 5.52

Step-by-step explanation:  [tex]1.84 x 3 = 5.52[/tex]


Related Questions

Reasoning A store sells packages of comic books with a poster. A poster and 8 comics cost $14.75. A poster and 16 comics cost $22.75. Write a linear function rule that models the cost y of a package containing any number x of comic books. Suppose another store sells a similar package, modeled by a linear function rule with initial value $5.50. Use pencil and paper. Explain which store has the better deal.
The linear function rule is y=​

Answers

647474 is the answer it’s for sure right i had the same problem

Four friends are creating posters for their presentations, which will be delivered in different locations. Which person should create the largest posters

Answers

Answer:

Lindsey, who is delivering her speech in a large auditorium

Step-by-step explanation:

Jin, who is delivering her speech to a small group sitting around a table

Lindsey, who is delivering her speech in a large auditorium

Luke, who is delivering his speech in a typical classroom

Jordan, who is delivering his speech in a small meeting room

The Hiking Club plans to go camping in a State park where the probability of rain on
any given day is 0.57. What is the probability that it will rain on at least four of the
seven days they are there? Round your answer to the nearest thousandth.

Answers

Answer:

  0.650

Step-by-step explanation:

The probability of rain on 4 or more days is the sum of the probabilities of rain on 4, 5, 6, and 7 of the days.

The probability of rain on 4 days is ...

  7C4×(0.57)^4×(1 -0.57)^(7-4) ≈ 0.29375

On 5 days, it is ...

  7C5×(0.57^5)(0.43^2) ≈ 0.23363

On 6 days, it is ...

  7C6×(0.57^6)(0.43^1) ≈ 0.10323

And on all 7 days, it is ...

  0.57^7 ≈ 0.01955

The sum of these probabilities is ...

  P(≥4) = 0.29375 +0.23363 +0.10323 +0.01955 = 0.65016

The probability of rain on 4 or more days is about 0.650.

what is the x intercept

Answers

Answer:

The answer is B

which one is the same to 0.6 . 1/6 , 6% , 3/5 , 60% or 6/100

Answers

3/5 and 60% are both equivalent to 0.6

For a Brainlist please help me out
+ give accurate explanation

Answers

Answer:

A:Tina's. B: Gabby's

Step-by-step explanation:

Luckly the two people are using the same unit to measure both time (in weeks) and height (in inches), so no conversion needed.

At this point, let's start dealing with the questions.

A. They bought the plants at week 0.

For Tina, we calculate [tex]f(0) = 0+1.5 = 1.5[/tex]

For Gabby, we scout the table till we find week 0 and check the corrisponing value: it's (0; 1) Since 1 is smaller than 0, at start Tina plant was taller.

B. The easiest way would be to stare at Gabby's table for a bit, and notice that each increase is 2 more than the previous, and the progression starts at 1. We can write it as an equation as [tex]g(x) = 2x+1[/tex]. If you confront with Tina's growth, you can tell that Gabby's plant grows twice as fast - the slope is double. Else, you can see that even just after one week, Tina's plant will be 2.5 in tall, while Gabby's outgrew hers already. That's possible only if the plant is growing faster.

Pls Help! Will Mark Brainliest!!!

Answers

Step-by-step explanation:

it is a bit unclear to me how the cups are stacked on each other.

are we building a pyramid or is it really just one line of cups stacked into each other ? the equation suggests the latter. so, I will continue with that assumption.

then each additional cup really adds only the height of the rim to the total height of the cup tower.

so, we want to find out for what smallest x is the equation delivering as y value 32,400 or more.

32,400 = 2.4x + 13.6

let's get rid of the decimals by multiplying everything by 10.

324,000 = 24x + 136

323,864 = 24x

x = 323,864/24 = 13,494.33333...

so, we need 13,495 cups to reach its height (just rounding it to 13,494 would still leave a tiny gap, so we need the 13,495th cup - there is no way to reach the height exactly).

50 POINTS!!

Write an
equation for the circle with centre (0,0), if (12,5) lies on its circumference

Answers

Answer:

x² + y² = 169

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ( r is the radius )

Given (12, 5 ) lies on the circumference , then the point will satisfy the equation.

Substitute (12, 5 ) into the equation

12² + 5² = r²

144 + 25 = r²

169 = r²

Then equation of circle is

x² + y² = 169

Please help!! Thank you!! :)

Answers

Answer:

the answer for this equation is -32

3-7(-5)
38
Plug the numbers into the equation and ta da :)

CAN SOMEONE HELP ME PLEASE ASAP!

Answers

The width is 21 centimeters.

Answer:

the answer is 21 cm

Step-by-step explanation:

as doing by formulae

PLEASE HELP i will give brainliest no links​

Answers

Answer:

y=5x

Step-by-step explanation:

y=ax

use any value of x and y from the table

I chose (2,10)

10=2a

10/2=a

a=5

???????????????????plz

Answers

Answer:

right right

Step-by-step explanation:

please full calculation

Answers

a = -5
b = -3
c = 1
d = 3

how do you simplify 2.7 x 6

Answers

Answer:

16.2

Step-by-step explanation:

Is the system of equations consistent and independent,
consistent and dependent, or inconsistent?
y= -1/2x +3
y= 4x + 2
Select the correct answer from the drop-down menu.
Choose

Answers

Answer:

Consistent and independent

Step-by-step explanation:

If two lines intersect, then the following things are true.

1. they have different slopes.

2. one solution.

3. The system of equation is consistent and independent

find the highest common factor of 9, 12 and 15​

Answers

Hello there! :)

The highest common factor of 9, 12, and 15 is 3.

To find the HCF (also called the GCF) of two or more numbers, we list their factors:

9: 1, 3, 9

12: 1, 2, 3, 4, 6, 12

15: 1, 3, 5, 15

Can you see that 3 is their GCF?

Hope this helps!

~Just a determined gal

#CarryOnLearning

[tex]MysteriousNature[/tex]

solve the equation 5(3x-1)=4(3x-2)

Answers

Answer:

x=-1

Step-by-step explanation:

15x-5=12x-8 Simplify Parentheses

3x=-3 Isolate the variable

x=-1 Divide by 3 on both sides

Answer:

[tex]x=-1[/tex]

Step-by-step explanation:

Our equation is

[tex]5\left(3x-1\right)=4\left(3x-2\right)[/tex]

First, we distribute

Now we have

[tex]15x-5=12x-8[/tex]

Subtract [tex]12x[/tex] from both sides

[tex]3x-5=-8[/tex]

add [tex]5[/tex] to both sides

[tex]3x=-3\\[/tex]

Divide both sides by 3

[tex]x=-1[/tex]

Brainliest please

plss help, it’s pretty easy tho

Answers

Answer:

B

Step-by-step explanation:

share £165 in the ratio 2:3

Answers


2:3=£165
2:3 =5
2/5 x 165
=2x33
66
=3/5 x 165
3 x 33
99
answer: 66 : 99

HURRY I NEED IT FOR 3rd GRADE MATH

Whats 73 + 82

Answers

Answer:

155

Step-by-step explanation:

Answer: 155

Step-by-step explanation:

73

+82

155

Kate, Alexia, and Trina just completed the 400-meter dash at the track meet. Kate finished the race 6 seconds faster than Alexia, while Trina finished the race 3 seconds faster than Kate. If their combined time was 2 minutes and 39 seconds, find each girl’s individual time.

Answers

Answer:

Kate = 52 seconds, Alexia = 58 seconds, Trina = 49 seconds

Step-by-step explanation:

A = K + 6

T = K - 3

K + A + T = 2 min 39 sec or 159 sec

K + (K + 6) + (K - 3) = 159sec

3K + 3 = 159sec

3K = 156sec

K = 52 sec

A = 52 + 6 = 58 sec

T = 52 - 3 = 49 sec

Find the perimeter. Simplify your answer.

Answers

7y+10+7y+10+y-4

14y+20+y-4

15y+20-4

15y+16

answer= 15y+16

Answer:

7y+10+7y+10+y-4=

(7y+7y+y)+(10+10-4)=

15y+16=

Translate the phrase into an algebraic expression.
The product of 6 and c

Answers

Answer:

c x 6 = x

Product judy basically means multiplication.

What is 9/10 divided by 3/4

Answers

Answer:

1.5

Step-by-step explanation:

Find the reciprocal of the divisor

Reciprocal of  

3

4

:  

4

3

Now, multiply it with the dividend

So,  

9

10

÷  

3

4

=  

9

10

×  

4

3

=  

9 × 4

10 × 3

=  

36

30

After reducing the fraction, the answer is  

6

5

In mixed form: 1

1

5

Answer: 0.075 (decimal form) or (fraction form) 3/40 or 7.5% (percentage form)

Step-by-step explanation:

How to draw on the graph
y=3x
y=x-6

I need it as soon as possible plz

Answers

Answer:

I believe the graphing should look like this.

Step-by-step explanation:

answer..............................

Answers

Answer:

yes

Step-by-step explanation:

Jared has four pieces of rope that are each 12.75 feet long. How many feet of rope does he have in total?

51 feet
50.8 feet
16.75 feet
12.79 feet

Answer=51 Feet

Answers

I am pretty sure the answer is-51 Feet

hello guys I need help, the things in parenthesis is just me talking) Your friend writes 0.86 as a percent. 0.86 = 00.86=0.0086% 86 Is your friend correct? (picked no) Explain your reason ( I don't know how to explain it)​

Answers

Answer:

0.86 as a percent is 86%.

Step-by-step explanation:

Have a great rest of your day

#Nova

P.S

give the braineist to the other person pls

The age structure of a population is often represented by a pyramid. What does an age structure pyramid with a broad base and a narrow top indicate about a population

Answers

Answer:

The shape of the pyramid does not provide information on population growth

What is 2(-2) raised to the power of 3 - 6x?

Answers

Answer: -2 * (3x + 8)

Would appreciate brainly <3

Other Questions
complete the acronym nutrient using word related What's the circumference of acircle with a radius of 5 inches?Use 3.14 for i.C = [?] inches Polly buys 6.8 yards of fabric for $28.90. What is the cost per yard?Please help? :) Places that are located near each other tend to be similar, especially if they sharegovernment or demographic factors. These local similarities are more importantthan any differences that come from trade.1. Use the graphic organizer below to identify two pieces of evidence thatsupport this statement and two pieces of evidence that contradict thisstatement. How does Bissinger portray how factors of race and socioeconomic status affect high school football in Odessa? A method of cost assignment where a cost can be associated to the particular cost object in an economically feasible way is called ________. what's makes up the brain and a brief explanations Problem 2A recipe for sparkling grape juice calls for 112 quarts of sparkling water and 34 quart of grape juice.How much sparkling water would you need to mix with 9 quarts of grape juice? Response area of sparkling water. How much grape juice would you need to mix with 154quarts of sparkling water? -- area of grape juice.How much of each ingredient would you need to make 100 quarts of punch? ---- area of sparkling water and Response area of grape jui write the value of the underlined digit in words 6,302,450? 3 being the underlined number. A woman who has had five preganacies tests positive for HIV by Western blot. What is the most likely reason for this result PLEASE HELP I WILL GIVE BRAINLIST IF ITS RIGHTJessica plants a seed 3 1/2inches below the ground. The plant grows from there 15 3/4inches. What is the height of the plant above the ground?12 1/4 inches19 3/4 inches18 2/3 inches13 1/2 inches what gave Lincoln the authority to excuse the Confederates of treason Determine the domain of each graph: Fill in the Blanks1. Thesystem helped to setstandards for the work done by the craftsman.2. Fresco is a painting method used by paintersin Giotto's time, and today. The painting isdone on3. Another word for a wall painting is----aa pllz answer Masterson Wood Products pays Patricia Griffin a $640 monthly salary plus a 11% commission on merchandise she sells each month. Assume Patricia's sales were $72,900 for last month. Billy has a tantrum and dumps puzzle pieces on the floor. Billy not only has to pick up the puzzle pieces, but he also has to clean up the entire toy room. Which punishment procedure involves restoring the environment to a condition better than it was prior to the problem behavior Look at the number line.Which shows the numbers in order from greatest to least? A. 2.25, , , 1.5, B. , 2.25,, 1.5, C. , 1.5, , , 2.25 D. 2.25, 1.5, , , BE SURE TO LOOK AT PHOTO 1:Can all genetic mutations be observed with a karyotype? Explain:2:Evaluate the use of karyotyping in genetic testing to determine the health of an unborn baby. b2 - 12a when a = 1/4 and b = 8 help me due today it is math