Answer: He run 7 high-speed intervals and 8 low-speed intervals.
Step-by-step explanation:
Let x = Number of high-speed intervals.
y= Number of low-speed intervals .
He runs high-speed intervals in 16 seconds, and low-speed intervals in 23 seconds, and he runs a combined total of 15 intervals in 4 minutes and 56 seconds.
4 min 56 sec = (4(60)+56) sec = 296 sec [ 1 minute = 60 seconds]
According to the question , we have the following linear equations :

Multiply (i)by 16 , we get

Subtract (iii) from (ii)

Put value of y in (i) , we get

Hence, he run 7 high-speed intervals and 8 low-speed intervals.
Answer:
80 m
Step-by-step explanation:
Given :-
One side of rhombus = 20 m.
[ as one of the property of rhombus = all sides are equal ]
So, perimeter of rhombus = sum of all sides
= 20+20+20+20 = 80 m
...........................OR............................
Perimeter of rhombus = 4 × side
= 4 × 20 = 80 m
Hence, the perimeter of the rhombus is 80m.
Answer:
x= 243/56
Step-by-step explanation:
Answer:
Hello there, the answer would be
Step-by-step explanation:
We cut the figure into two different shapes.
Since on one side it is 4 feet and the height is seven, we cut right there.
So the bottom figure is now 4 x 5 = 20
The top figure is cut with 3 height left, So all we do is just multiply.
8 x 3 = 24.
20+24=44.
PLEASE MARK AS BRAINLIEST!!!
I would need to see the box and whisker plot to answer this question.