Answer:
30.5
Step-by-step explanation:
We know that ABCD is similar to EFGH so that means you can use a scale factor for them to figure out the rest of the side lengths.
25/12.5=2
12/6=2
Therefore the scale factor is two. Then we can use the numbers from the other side lengths which are 12 and divide by 2. Which gets you 6 for each remainder of the sides.
Then add them
12.5+6+6+6 = 30.5
P= 30.5
Answer:
x=3 y=2
Step-by-step explanation:
y=2
2x+y=8
Substitute y=2 into the second equation
2x+2=8
Subtract 2 from each side
2x+2-2=8-2
2x=6
Divide each side by 2
2x/2 =6/2
x=3
x=3 y=2
Answer: it took him 0.075 seconds lesser
Step-by-step explanation:
In his first heat, his time was 2.45 seconds greater than his friend's record time. In his second heat, his time was 2 3/8 seconds greater than his friend's record time. Converting 2 3/8 seconds to decimal, it becomes 2.375 seconds
Therefore, he was fastest in the second heat.
The difference between the time he used to run in the second heat than in the first heat is
2.45 - 2.375 = 0.075 seconds
Answer:
28 students did not fail.
Step-by-step explanation:
Since 7 is 1/5 of the class, then 4/5 of the class 28 because 7 * 4 = 28.
Brainliest would be greatly appreciated!!! Have a nice day!
Answer:
D
Step-by-step explanation:
Saying the number of |`s is the number side and |<|||>|| then for a triangle i can say |+||>|||
