9514 1404 393
Answer:
y = 2
Step-by-step explanation:
The variable x can be eliminated by subtracting the first equation from the second.
(-x +4y) -(-x -y) = (15) -(5)
5y = 10 . . . . . . . simplify
y = 2 . . . . . . . . . divide by 5
Answer:
162
Step-by-step explanation:
( -a ) ( b ) ( -a + b )
-6 ( 3 ) ( -6 + -3 )
-6 ( 3 ) ( -9 )
- 18 ( -9 )
162
Answer
Find out the what is the total length of the wood .
To prove
As given in the question the length of the five pieces of wood are
73 cm+ 1.6m + 2.87m + 325cm + 4.04m
As 1m = 100cm
1 cm = 0.01m
73 cm is converted into meter = 73 × 0.01
= 0.73 m
325cm is converted into meter = 325 × 0.01 m
= 3.25 m
Total length of the length of wood = 0.73m + 1.6m + 2.87m + 3.25m + 4.04m
simply adding the above terms
Total length of the length of wood = 12.49 m
Therefore the total length of the wood is 12 .49 m .
Answer:
Step-by-step explanation:
Convert the mixed fractions to improper fractions:
Find the common denominator and write equivalent fractions:
Add:
Reduce to mixed fraction:
Answer:
175°
Step-by-step explanation:
Bearing angles are usually measured clockwise from North. Reverse bearing angles differ from forward bearing angles by 180°. These relations and the usual angle sum relation for a triangle can be used to solve this problem.
Angle PQR will be the difference in the bearings from Q to P and Q to R:
∠PQR = 124° -46° = 78°
Triangle PQR is isosceles, so the base angle at P will be ...
∠QPR = (180° -78°)/2 = 51°
__
The bearing from P to R will be 51° less than the bearing from P to Q. The bearing from P to Q is 180° more than the bearing from Q to P.
PR bearing = PQ bearing - ∠QPR
= PQ bearing - 51°
= (46° +180°) -51° = 175°
The bearing of R from P is 175°.
