Answer:
D. How many students enrolled in seventh grade at the start of this year
Answer:
120°
Step-by-step explanation:
I drew a picture that will make it easier to understand what's going on. Please see the attached image
In a rhombus, the diagonals bisect the opposite angles, and opposite angles are congruent.
Let's say angle 1 is x. The interior angles of a quadrilateral add up to 360°, so
30+30+30+30+2x=360
2x=240
x=120
angle 1 is 120°.
Answer:

Step-by-step explanation:
<u>Cinematics
</u>
When an object moves at a constant speed, it can be computed as

Where x is the distance traveled and t the time needed to complete it at the constant speed v
If we wanted to compute t from the equation above, then

Elia rode her bicycle from her house to the beach at 18 km/h and then from the beach to the park at 15 km/h, taking 1 hour in the whole travel, each distance being equal. If we call b as the number of hours it took Elia to ride from her house to the beach, and p the number of hours it took her to ride from the beach to the park, then we can compute


The question doesn't ask for something in particular, so I'm helping you by solving the complete problem. We know the total time is 1 hour, so

Replacing b and p

Multiplying by 90

Simplifying and solving for x



We finally compute b and p

CAN $1.00 = JA $72.00
1) 72.00(25.00) = 1800
CAN $25.00 = JA $18.00
2) 30,000.00/72 = 416.67
JA $30,000.00 = CAN $416.67
It lies between 32,000 and 33,000