Answer:
Step-by-step explanation:
Both C and E are correct.
15 pencils - £1.20
£3.80 left
12 rulers - £3.60
20p left
2 pencils - 16p
17 pencils, 12 rulers
A) slope is 7 for 1 and -7 for the other. These lines intersect in 1 point only
b) both equations have slope -2/3 and the same intercept, so it is really only one line...infinite solutions
c) parallel lines have 0 solutions
Answer:
water has a specific heat capacity of 4180 j/kg degree cellos
2. Quadrilateral, rectangle, parallelogram
3. Quadrilateral, trapazoid
4. Quadrilateral
