Answer: the second one
Step-by-step explanation:
To solve this you will need to take 90-15=75 then take 75/3=25 so a biscuit costs 25p and a cake costs 40p becuase 25*2=50+40=90 enjoy!=)
Answer:
yes
Step-by-step explanation:
if you distribute the 9 into the parenthesis you get 9y + 45. Therefore, both equations are equivalent seeing that they both equal to 9y + 45.
Answer:
a line with a gradient of
![\frac{ - x}{3}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%20-%20x%7D%7B3%7D%20)
Step-by-step explanation:
parallel lines have equal gradients, i.e the value of m, has to be the same.
therefore:
![x + 3y = - 21 \\ 3y = - x - 21 \\ y = \frac{ - x}{3} - 7](https://tex.z-dn.net/?f=x%20%2B%203y%20%3D%20%20-%2021%20%20%5C%5C%203y%20%20%3D%20%20-%20x%20-%2021%20%5C%5C%20y%20%3D%20%20%5Cfrac%7B%20-%20x%7D%7B3%7D%20%20-%20%207)
We have to calculate the area of a rectangular quilt.
area of a rectangle=length x width
Data:
length=60 in=60 in(1 foot/12 in)=5 ft
width=40 in=40 in(1 foot/12 in)=3.33 ft
Area of the rectangula quilt=(5 in)(3.33 in)=16.67 ft²
Now, we have to calculate the cost of this quilt
$1.50-----------------1 ft²
x------------------------ 16.67 ft²
x=($1.5 * 16.67 ft²)/1 ft²=$25
Answer: the cost of the rectangular quilt was $25