grace2443
05.10.2020 •
Mathematics
Write an equation for each of the following and then solve it to find the value of the pronumeral.
a When 7 is added to twice a certain number, the result is 15. Find the number.
b The sum of 3 consecutive numbers is 51. Find the largest number.
c Two girls have $27 between them. One has twice as much as the other. How much
does each girl have?
d The length of a rectangle is 3 times the width of the rectangle, and the perimeter is
64 cm. Find the width of the rectangle.
e In a triangle the angles are (x + 9)°, 3.xº and (2x + 3)'. Find the smallest angle.
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