Answer:
a:b = 11:3 and a:b:c = 11:3:2
Step-by-step explanation:
a:b is equal than write a/b. So a/b=11/3 it means a:b = 11:3
b:c is then b/c = 2
For a:b:c the ratio must be maintained. Ratio is equals reasons or divides. We already know a:b is 11:3. What about a:c?
3a=11b then a=11/3 b, b=2c then c=1/2 b hence a/c =22/3 if we pay attention this reason is 2*11/3 so a:b:c is 11:3:2
Answer:
34 = 22 + x
x = 12
Step-by-step explanation:
alternatively, you could say (10x3)+(1x4) = (10x2) + (1x2) + x
Answer:
C. ∆ABD ≅ ∆CBD by the SSS Postulate
Step-by-step explanation:
We can prove that ∆ABD and ∆CBD congruent by the SSS Postulate.
The SSS postulate states that of three sides in one triangle are congruent to three corresponding sides in another, therefore, the two triangles are congruent.
From the diagram shown,
AB ≅ CB,
AD ≅ CD
BD = BD
We have three sides in ∆ABD that are congruent to three corresponding sides in ∆CBD.
Therefore, ∆ABD ≅ ∆CBD by the SSS Postulate
841 jumping jacks per 4 minutes
Divide both sides by 4.
Delilah can do 210.25 (or 210) jumping jacks per minute.