Answer:
Mary is 7
Step-by-step explanation:
If their ages combined equals 21 and john is twice Mary’s age then johns age takes up 2/3 of 21. that would b 14. 14 is 2 x 7. and Mary is 7. 14+7=21. Mary is 7 years old
Answer:
B
Step-by-step explanation:
Supplementary angles sum to 180°
If one angle is 77°, then the other angle is
180° - 77° = 103° → B
Interior angles of a parallelogram have opposite angles identified as "a" and "b".
angles K and I are "a"
angles H and J are "b"
"a" and "b" are supplementary angles, they sum up to 180°.
Angle J is supplementary angle of angle K. Its measure is 143°.
180° - 37° = 143°
Angle H is also 143° while angle I is 37°
A perpendicular slope is equal to the negative reciprocal of the given slope.
-2/3
The recipeocal of -2/3 is -3/2. The nagtive of this is 3/2.
Final answer: 3/2
