Answer:
D. $680
Step By Step Explanation:
100 pages are typed. Each page coast $5 to type.
100 x 5 = 500
40 pages are revised once. It costs $3 to revise a page once.
40 x 3 = 120
10 pages are revised twice. It costs $3 to revise a page once so it will cost $6 to revise it twice
10 x 6 = 60
To find the total cost we add all the amounts together
500 + 120 + 60 = 680
The final answer is $680
Answer:
B. 1.2 x 10^-1
Step-by-step explanation:
3.6 x 10^7 = 36,000,000
3 x 10^8 = 300,000,000
36,000,000 ÷ 300,000,000 = 0.12
= 1.2 x 10^-1
1. Factor the expression 
2. Since 
is placed in the denominator of the given expression, then 
3. Now the expression can be simplified:
Factor: Trying to factor by splitting the middle term
The first term is 15a^2, its' coefficient is 15
The middle term is - 58a, its' coefficient is - 58a
The last term is "The Constant" is +48
Multiply the coefficient of the first term by the constant 15(48) = 720
Find two factors of 720, whose sum equals the coefficient of the middle term, which is -58
<span><span>-720
+
-1
=
-721 </span><span>
-360
+
-2
=
-362 </span><span>
-240
+
-3
=
-243 </span><span>
-180
+
-4
=
-184 </span><span>
-144
+
-5
=
-149 </span><span>
-120
+
-6
=
-126 </span><span>
-90
+
-8
=
-98 </span><span>
-80
+
-9
=
-89 </span><span>
-72
+
-10
=
-82 </span><span>
-60
+
-12
=
-72 </span><span>
-48
+
-15
=
-63 </span><span>
-45
+
-16
=
-61 </span><span>
-40
+
-18
=
-58
</span></span>
Factoring: 15a^2 - 58a + 48 = 0
Factor left side of equation:
(5a - 6)(3a - 8)
Set fractions equal to Zero
5a - 6 = 0 or 3a - 8 = 0
Answer : a = 6/5 = 1.200
or a = 8/3 = 2.667
Hope that helps!!!!
Answer:
20 is correct answer
Step-by-step explanation:
8+3×4
=8+12
=20
<em>Reme</em><em>mber</em><em> </em><em>always</em><em> </em><em>foll</em><em>ow</em><em> </em><em>bodmas</em><em> </em><em>rule</em><em> </em>
hope it helped you:)
thanks!
