ememiliamocko10 ememiliamocko10

26-03-2020
Mathematics

contestada

a knife is 3 times the cost of a spoon. 9 spoons and 12 knives cost £82.80
work out the cost of 1 knife using simultaneous equations

Respuesta :

kenlingdad kenlingdad

26-03-2020

Answer:

£5.52

Step-by-step explanation:

K = 3S

9S + 12K = 82.80

9S + 12 (3S) = 45S = 82.80

S = 1.84

K = 3 x 1.84 = 5.52

Answer Link

Otras preguntas

Can somebody help me with this( E )

2. Which of the following represents the turning point of the parabola whose equation is y=(x+3)2-72 (1) (3,-7) (2) (-3,7) (3) (-7,-3) (4) (-3,-7)

How many moles are in 8.12x10^23 molecules of CO2 gas

In what ways did Ancient Greek philosophy influence Ancient Rome in terms of political philosophy, science, art, and religion?

If an electron has, orbital angular momentum quantum number l=7, then it will have an orbital angular momentum equal toA. 7(h/2π)B. 42(h/2π)C. 2√14(h/2π)D.√56(h

What is the correct pronunciation of bechamel?

PPRs are organized by principles that will focus deliberate thinking, by .......

My Leadership Skills (leadership skills that YOU have and share how you have used them) Example: Problem Solving Tell a story about a time you solved a problem

The inner mitochondrial membrane contains a specific transporter protein for which of the following substances?A) PyruvateB) Fatty acyl-CoAC) PEP (Phosphoenolpy

The potential difference between a storm cloud and the ground is 2.22 × 108 V. If a bolt carrying 2 C falls from a cloud to Earth, what is the magnitude of the