Okay, so we know that Adam earns £200, plus 10% of (42*8) and 15% of (15*14)
To work out the payment for the magazines, you multiply 42 and 8, which gives 366 and find 10% of that, which is £36.60
To work out the payment for the books, you multiply 14 by 15, which gives 210 and find 15% of that, which is £31.50
Then add all the amounts together
£200+ £36.60+ £31.50= £268.10
Answer:
length=8 , wide=5
Step-by-step explanation:
Let length=x and wide=y
convert the question into two equations
3+y=x .......1
xy=40 .......2
so we need to substitute x into y or y into x
x=3+y ,
(3+y)y=40
y²+3y=40
y²+3y-40=0
from that use calculator or manually factorise it
(y+8)(y-5)=0
y= –8 , y=5
we need to choose positive answer so y=5
then find for x
5x=40
x=8
Its $10.54 yeshgegstegegeysysgs i wrote that because it needs "20 characters or something"
Answer:
Step-by-step explanation:
So, we are given:
First, we should immediately rule out 0 as an answer. This is because the if , the equation would be undefined.
Now, cross multiply.
Divide everything by x (and we can do this safely because we already know x cannot be equal to zero).
We didn't run into any possibilities for extraneous solutions.
If we look at the red line, we see that it makes the function of y=2x-1, and the shading is below it, so that means that one of the functions is y≤2x-1 and the only answer choice with that function is the 2nd.