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hodyreva [135]
3 years ago
5

Six years ago annabelle was twice as old as jason was. now, annabelle is four years older than jason. how old is jason now?

Mathematics
1 answer:
baherus [9]3 years ago
4 0
Now: a=j+4
6 years ago: Anabelle: a-6; Jason: j-6

a-6=2(j-6) \\ a=2j-12+6 \\ a=2j-6 \\  \\ j+4=2j-6 \\ 4+6=2j-j \\ j=10 \\  \\ a=2(10)-6 \\ a=14
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gayaneshka [121]

Answer:

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2. 45, 135, 135

Step-by-step explanation:

2. We know that an isosceles trapezoid has congruent base angles and congruent upper angles, so if one base angle measures 45 degrees, the other base angle will also be 45 degrees.

For the upper angles, we know that diagonal angles are supplementary, so 180- base angle 1 (45 degrees)= upper angle 1

180-45=upper angle 1

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Mentioned above, upper angles are congruent, so upper angles 1 and 2 will be 135 degrees.

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