Answer:
38
Step-by-step explanation:
To find the unit rate (How much money in one day), you have to divide the amount of money by the amount of days and 570÷15=38
Answer:
10 and 2
Step-by-step explanation
Nitesh is currently 10 and Ravi is currently 2
(2 times 5 is 10)
in 2 years Nitesh will be 12 and Ravi will be 4
(4 times 3 is 12)
Answer:
21
Step-by-step explanation:
I shall change the pictures to letters
a + a + b = 40 --(1)
b - c = 7 --(2)
c + a = 19 --(3)
a - c + b = ?
From (1):
2a + b = 40
b = 40 - 2a --(4)
From (2):
b = 7 + c --(5)
Sub (4) into (5):
40 - 2a = 7 + c
c = 33 - 2a --(6)
Sub (6) into (3):
33 - 2a + a = 19
a = 14
Sub a = 14 into (4) and (6):
b = 40 - 2(14) = 12
c = 33 - 2(14) = 5
therefore, a - c + b = 14 - 5 + 12 = 21
Topic: simultaneous equations
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1,159cm^2 that is the answer
Answer:
Step-by-step explanation:
If we drew an auxiliary line parallel to line 
and line 
that intersects the vertex of 
, we would form three angles, one of them being
The largest of these angles corresponds with the angle marked as 
.
The angle on the bottom right corresponds with the angle next to the one marked as 
. Therefore, its measure is 
.
Since there are 
in a circle, we can now write the following equation:
.
