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chubhunter [2.5K]
3 years ago
8

Bus one had half of the grade eight students and 6 grade, seven students, bus two had 15 grade seven students and one-third of g

rade eight students, how many students are there in grade 8 ??
It's an algebra question
Mathematics
1 answer:
Rzqust [24]3 years ago
7 0
I'm not sure about that one
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Step-by-step explanation:

1. You already got the first step, where D is the midpoint of AC and AB is congruent to BC, since it's given.

2. AD will be congruent to DC, via the definition of a midpoint (a midpoint is the middle point of a line segment, and it splits the segment into two congruent parts)

3. BD is equal to BD, via reflexive property. ( It's a shared side between the two triangles)

4. that means that ΔADB ≅ΔCDB via SSS rule.

5. ∠ABD ≅∠CDB by CPCTC (corresponding parts of congruent triangles are congruent)

Hope this helps! :)

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