x = 80
the sum of the angles round a point is 360°
the 3 angles here must sum to 360°
3x + x - 27 + 67 = 360
4x + 40 = 360
subtract 40 from both sides.
4x = 360 - 40 = 320
divide both sides by 4
x = = 80
thus the 3 angles are 67°, 240° and 53°
A bag of mini-marshmallows
1 answer:
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20
Step-by-step explanation:
Step 1:
Let the number be 50 and to find 40% of 50 is given interms of expression as follows
To express the percentage the following strategy is used
Eg: 40% =
∴ To express 40% of 50 is
Step 2:
On simplification the above expression we could get
= 20
Answer:
Molly is 11 and Bobby is 3.
Step-by-step explanation:
Let Molly's age be m and Bobby's age be b.
Subtract b from both sides:
(Equation 1)
(Equation 2)
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