Answer:
Her brothers pulse rate is 76.
Step-by-step explanation:
95% of 80 is 76. That only means that her brother's pulse rate must be 76 beats per minute.
Answer:
Step-by-step explanation:
Ratio of length : width = 4 : 7
Length = 4x
Width = 7x
Longer side = 31.5 in
⇒ 7x = 31.5
Divide both sides by 7
x = 31.5/7
x = 4.5
length = 4x
= 4*4.5
l = 18 in
width = 31.5
w = 31.5 in

= 2*18 + 2*31.5
= 36 + 63
= 99 in

= 18*31.5
= 567 in²
Answer:
whut
Step-by-step explanation:
Answer:
99
Step-by-step explanation:
1. rectangular pyramid formula:
2. V=lwh/3
3. 99 = (3)(9)(11)/3
Answer- 16
explanation- that’s what it is