9514 1404 393
Answer:
50 problems
Step-by-step explanation:
The percentage wrong was 100% -72% = 28%. Then the number n of problems on the test was ...
14 = 0.28·n
n = 14/0.28 = 50
There were 50 problems on the test.
Answer:
Side AC is congruent to side DF
Step-by-step explanation:
We are given that
Side AB=5 cm
BC=6 cm
Side DE=5 cm
Side EF= 6cm
We have to find an additional information would need to prove that
by SSS.
When two triangles are congruent by SSS it means three sides of one triangle are congruent to corresponding sides of other triangle.
We have in triangle ABC and triangle DEF
![AB\cong DE=5 cm](https://tex.z-dn.net/?f=AB%5Ccong%20DE%3D5%20cm)
![BC\cong EF=6 cm](https://tex.z-dn.net/?f=BC%5Ccong%20EF%3D6%20cm)
![AC\cong DF](https://tex.z-dn.net/?f=AC%5Ccong%20DF)
Then ,
DEF
Reason: SSS postulates
Answer: Side AC is congruent to side DF
X=18 , first you have to rewrite it as fractions then you have to cross multiply the equation , and last divide
You would need to get to 5 levels because 5 x 300 = 1500