Answer:
A)20 apples
B)Can only make 2 pies
C)Yes I think Is very close like probably just a lil bit more sugur but I think yes
D)Ohh so he doesnt have enough sugur I knew he needed a lil bit more sugur lol
Step-by-step explanation:
Answer:
<em>x^2-2x-63 = (x-9)(x+7)</em>
Answer: No
Step-by-step explanation: proportional means corresponding in size or amount to something. However, the number of her sit-ups isn't consistent, so it isn't proportional to the time she spends doing them.
This is the concept of simultaneous equations:
Let the time taken to do one sum be x and time taken to do one product be y.
Total time taken to do 5 sums and seven products will be:
5x+7y=43
Total time taken to do 4 sums and 6 products will be:
4x+6y=36
This gives us the simultaneous equations:
5x+7y=43
4x+6y=36
multiply the top equation by 4 and the bottom equation by 5 then subtract the bottom equation from the top gives us:
-2y=-8
thus:
y=4
next
multiply the top equation by 6 and the bottom equation by 7 then subtract the bottom from the top equation gives us:
-2x=-6
hence;
x=3
therefore:
Total time taken to do 1 sum is x=3 nanoseconds
Total time taken to do 1 product is y=4 nanoseconds
Answer:
0.381mm or 0.015in
Step-by-step explanation:
no. of papers in the stack-700
total length of stack-10.5in
thickness of single piece of paper= 10.5/700= 0.015in=0.381mm