42
Work backward. 64 at the end. She found 19. Take those away to see how many she had before that. 64-19=45. So she has 45 now. She started with 87. So to find out how many nickels were used for the cookie, subtract 45 from 87. 87-45=42.
Answer:
D. 135
here are some extra words for fun (and to fill the necessary 20 characters)
8400in^3
I know because I took the test.
4x + 8 = 12x
7x - 11 = -4x
x = 19/3
Hope this helped☺☺
Answer:
Step-by-step explanation:On the given diagram you see two right triangles with equal hypotenuses and pair of equal angles.
Based only on the information given in the diagram you can conclude that triangles are congruent by HA theorem (the HA theorem states that "if the hypotenuse and an acute angle of one right triangle are congruent to the hypotenuse and an acute angle of another right triangle, then the two triangles are congruent").
Also you can conclude that triangles are congruent by AAS Postulate (the AAS Postulate states that "if two angles and a non-included side of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent").