Answer:
1..25a
Step-by-step explanation:
a + 25%·a = a(1 + 0.25) = 1.25a
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<em>Comment on percentages</em>
The symbol "%" is a shorthand way to write "/100", so 25% = 25/100 = 0.25.
Of course, 100/100 = 100% = 1.
Adding 25% of something to 100% of it gives 125% of it, the original amount multiplied by 125/100 = 1.25.
Answer:
i think the answer is 10-11 but i'm not sure i'm sorry
Step-by-step explanation:
Answer:
<h2>
A = 132 cm²</h2>
Step-by-step explanation:
Area of the figure is a sum of area of rectangle 4 cm × 7 cm and trapezoid with bases of 19 cm i 7 cm and altitude of 8 cm.
Therefore:
Answer:
648
Step-by-step explanation:
A=Ph
P=perimeter of triangle
P=6+6+6
P=18
h= height of prism
h=38
A=ph
A=18*36
A=648
Try writing and solving an equation of proportions:
4 5
---- = ----
6 x
Then 4x = 30, and x = 7.5 (answer)
