Let's take one side of the two equal lengths as r
third side is s.
so the total perimeter is r + r + s
2r + s = 23
According to the statement of third side s,
5 less than twice the length of one of other
s = 2r - 5
we have 2 equations and 2 unknowns. so we can find out the values of those letters.
2r + s = 23
2r - s = 5
4r = 28
r = 7
s = 9
Therefore the third length will be equal to 9 cm.
The temperature will fall 24 more degrees in the next 15 hours.
Let t be the number of triggerfish and p be the number of parrotfish
t + p = 320
t = 7p
7p + p = 320
8p = 320
p = 40
There are 40 parrotfish.
p = 40
t = 7(40)
t = 280
There are 280 triggerfish.
Check:
t + p = 320
280 + 40 = 320
320 = 320
Answer:
8 pencils.
Step-by-step explanation:
This is a common, GCF question and the question becomes, what number is the GCF of 40 and 24.
40= 2x2x2x5
24=2x2x2x3
Both share 2x2x2, which is 8 so the largest number of pencils in each pack is 8.
Answer:
64degrees
Step-by-step explanation:
Give the following
Height of tree H = 36feet
length of the shadow L = 40feeet
Requires
Angle of eleation
Using the SOH CAH TOA identity
Sin theta = opposite/hypotenuse
Sin theta = H/L
Sin theta = 36/40
SIn theta = 0.9
theta = arcsin0.9
theta = 64.16
Hence the required angle is 64degrees