Answer:
Last option
(AB)^2+(BC)^2=(AC)^2
Step-by-step explanation:
REASON because it follows Pythagoras theorem
a) 3 1/4 pounds of apple costs $6.46
b) X pounds of apple costs $1.99X
c) Clare bought 2.59 pounds of apple
Step-by-step explanation:
Cost of apple per pound= $1.99
a) 3 1/4 pounds = 13/4 pound
Cost for 13/4 pounds of apple = 1.99(13/4)
= $6.46
b) cost for X pound = 1.99(X)
=$ 1.99X
c) money spent for apples = $5.17
Cost per pound = $1.99
Total weight of apple bought = 5.17/1.99
= 2.59 pounds of apple
Answer:
216 cm²
Step-by-step explanation:
The shape has six faces of the 11 cm height triangles and 6 faces of the 7 cm height triangles.
The base for all of the triangles is 4
4(11)/2=22
4(7)/2=14
6(22+14)=216
Answer:
the required number of telephone orders to complete the 400 interviews is 3433
Step-by-step explanation:
Given the data in the question;
Let us represent the telephone numbers the researcher orders to complete the 400 interviews with Y.
Thus, The working phone numbers = 70% × Y
Now, number of ATM users = 45% × The working ph0ne numbers
⇒ 45% × ( 70% × Y )
number of ATM users = 0.45 × 0.70 × Y = 0.315Y
Thus; Number of people contacted that agrees to complete the survey will be;
⇒ 37% × number of ATM users
⇒ 0.37 × 0.315Y = 0.11655Y
so, since the researcher needs at least 400 interviews
Hence;
0.11655Y ≥ 400
Y ≥ 400 / 0.11655
Y ≥ 3432.0034 ≈ 3433
Therefore, the required number of telephone orders to complete the 400 interviews is 3433
Well, I don't know.
Let's figure it out together.
The best way to do that is to compare their unit rates:
The first woman's unit rate is (60 ft / 10 sec)
= (60 / 10) (ft/sec) = 6 ft/sec .
The second woman's unit rate is (25 ft / 5 sec)
= (25 / 5) (ft/sec) = 5 ft/sec .
Now we can see that the first woman walks 1 ft/sec faster
than the second one does.
