Answer:
cost of knife = £5.52
Step-by-step explanation:
Assume:
Cost of Knife = a
Cost of Spoon = b
a = 3b ----------------------(1)
12a + 9b = £82.80 -------(2)
Substitute equation (1) in equation (2)
12 * (3b) + 9b = £82.80
36b + 9b = £82.80
45b = £82.80
b = £1.84
Therefore, cost of knife = a = 3 * £1.84 = £5.52
Hey there!
(I changed the fraction 1/5 to a decimal, 0.2)
1 ÷ 0.2 = 5
Hope this helps you!
God bless ❤️
xXxGolferGirlxXx
Answer:
Step-by-step explanation:
i think the answer is 94°
Answer: Trey is correct
Step-by-step explanation: Because 3 x 4 = 12 and 4 x 3 also = 12 so Trey is correct.
Answer:
Kim is 20 years old
Step-by-step explanation:
We have to make equations;
Kim= laura+10 so L+10
Laura is twice as old as Melissa so Laura will be
2 X M = 2M
<h2>Melissa is 5 years old now </h2>
Input values in to the equation
<h2>2M = 2X5= 10 years old (Laura)</h2>
As Kim is 10 years older than Laura it will be 10+10
<h3>which will give the answer of
20 </h3>
