| chapter 7 | chapter 8/9 | chapters 9-11 | misc. |
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the ratio from red binders to grey binders is 50:75. if there are 100 red binders then how many grey binders are there?
150 grey binders
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state whether each ordered pair is a solution of the given equation
6s-9y=42 (10,2) (20,1)
(10,2) yes
(20,1) no |
simplify. square root of 625 a to the fifth
25 a2 square root a
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write in simplest form 121x4y7
------------- 11x3y5
11xy2
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simplify
5 ( - t3) (15t2) 3
25 t5
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can a right triangle have sides of 42, 60 and 75.
no
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express as a fraction and a mixed number. 720%
720 36 1
------ = ------, 7 ------ 100 5 5 |
y varies directly as x. if y=20 when x=17, find x when y=40
x=40
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how long is the hypotenuse of a right triangle whose legs are 25 and 30
~39
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simplify.
y2+80y+1500 ----------------------- y2+20y+75
(y+50)(y+30)
------------------- (y+15)(y+5) |
solve by substitution
m=8+n 3m+20n=57
33 10
n=---- m= 9 ----- 23 23 |
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write in a scientific notation
.000000000000000000000000000000000000000042
42 to the negative 42nd
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use the subtraction method to solve for q
3t+5s=10 3t+s=2
s=2
t=0 |
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