Answer:
m = 2.666
Step-by-step explanation:
<span>7/10x-1/5=4 should be written as (7/10)x - 1/5 + 4
or as 7x/10 - 1/5 = 4.
Multiply all 3 terms of the latter equation by 10 to eliminate fractions:
7x - 2 = 40
Then 7x =42, and x = 6.</span>
Answer:
(x+8)(x+8)
Step-by-step explanation:
<em>Assuming x2 is x^2 </em>
(x+8)(x+8) = x^2 + 16x + 64
Continuation
The Zeros Would Be
x = -8
3)
<span>
3. a2 + 5a – 3a2. A. 5a + 2a2 B. –2a2 + 5a C. –3a2 + 6a D. 5a – 3a2</span>
Answer:
In everyday terms and everyday language, rates of change have meaning. For example, the rates of change for some of the examples above can be worded in this manner.
Example 1
Word Problem:
You are at an amusement theme park with your 10 year old child. You bought a ticket for �1/2 day, but your child wants to stay another 4 hours after the �1/2 day is used. The admissions office can accommodate your child's additional time but the rate is $ 15 an hour. How much will it cost to purchase the additional 4 hours at this rate?
Solution to the Word Problem:
$15 / 1 Hour = $x / 4 Hours
x= 4 x 15 = $60
Answer: It will cost you an additional $60 for 4 more hours of fun for your child.
Example 2
Word Problem:
You are following a recipe for a cake for your church group's get together. This recipe calls for 3 tsp of baking powder to every 6 cups of flour. How many tsp would you add to 24 cups of flour?
Solution to the Word Problem:
3 tsp : 6 cups OR 3 tsp / 6 cups OR 3 tsp is to 6 cups
3 tsp / 6 cups = x tsps / 24 cups
6x = 24 x 3 = 76
6x = 24 x 3 = 72 / 6 = 12 4/16 = 12 tsps
Answer: You will need 12 tsps. of baking powder for 24 cups of flour which is enough to make 4 cakes for the church group's get together.
Step-by-step explanation:
