answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
LenaWriter [7]
2 years ago
6

A local race for charity has taken place since 1993. Using the actual speeds of the winners from 1993 through 1998, mathematicia

ns obtained the formula , in which x represents the number of years after 1993 and y represents the winning speed in miles per hour. In what year is the winning speed predicted to be 7.4 mph?

Mathematics
1 answer:
diamong [38]2 years ago
5 0

Answer:

Here is a similar question attached with.

Option (b) that is 2005 is the right choice.

Step-by-step explanation:

Given:

An equation in slope intercept form.

y=0.18(x) + 5

Where x = number of years

Comparing from the standard slope intercept form.

y=m(x) + b

y-intercept value (b) = 5

According to the question the predicted winning speed (y) = 7.16 mph

Plugging the value of y in slope intercept form, we will calculate the x (number of years) and then we will add this with 1993 .

⇒ y=0.18(x)+5

⇒ 7.16=0.18(x)+5

⇒ 7.16-5=0.18(x)

⇒ 2.16=0.18(x)

⇒ \frac{2.16}{0.18} =x

⇒ 12=x

Finally the year would be 1993+12=2005  

So in year 2005 the winning speed is predicted to be 7.16 mph.

You might be interested in
Solve the following logarithmic equations.<br> log2(49x^2) = 4
Mariana [72]

Answer:

x_{1} = \frac{4}{7} \\x_{2} = \frac{-4}{7} \\

Step-by-step explanation:

To solve this equation, one must apply the following logarithmic property:

if

log_{a}(b) = c\\

then

b= a^{c}

Applying it to the problem at hand:

2^{4} = 49x^{2} \\x^{2} = \frac{16}{49} \\x_{1} = \frac{4}{7} \\x_{2} = \frac{-4}{7} \\

The solutions to the problem are 4/7 and -4/7.

*Note that this solution was pretty straight forward because log2(16) = 4 is a known value, otherwise, a change of base to a base ten log would be required.

4 0
2 years ago
A fitness club holds an open house for new members. The club expects 6,500 people to sign up for gym membership. If there is a p
Nata [24]
Firstly, 6500 divided by 100 then x by 4= 260, 260 + 6500= 6760.
The greatest amount is 6760
Then you do 6500-260= 6240
The least amount is 6240
5 0
2 years ago
Read 2 more answers
Solve 4x - 5 = 7 + 4y for y
Mandarinka [93]

Answer:

<h2>y = x - 3</h2>

Step-by-step explanation:

4x - 5 = 7 + 4y           <em>subtract 7 from both sides</em>

4x - 5 - 7 = 7 - 7 + 4y

4x - 12 = 4y            <em>divide both sides by 4</em>

4x/4 - 12/4 = 4y/4

x - 3 = y

3 0
2 years ago
Pls help i have a test tmrw and i don't understand anything
Alex777 [14]

Answer:

Step-by-step explanation:

Go on super teacher worksheets to get the answer key

3 0
2 years ago
Grace works as a salesperson at an electronics store and sells phones and phone accessories, and makes a fixed commission for ea
spayn [35]

Answer:

Commissions:

Accessoriy: $2

Phone: $9

Step-by-step explanation:

18p + 21a = 204

6p + 14a = 82

21a = 42

a = 2

p = [82 - 14(2)]/6 = 9

4 0
2 years ago
Read 2 more answers
Other questions:
  • A company made a profit of $75,000 over a period of 6 years on an initial investment of $15,000. What is its annualized ROI? 26%
    13·2 answers
  • Yolanda wanted to see if there was a connection between red hair and green eyes. She observed people walking past her on the str
    8·2 answers
  • Three roots of the polynomial equation x4 - 4x3 - 2x2 + 12x + 9 = 0 are 3, -1 and -1. Explain why the fourth root must be a real
    9·1 answer
  • A chef uses a recipe with the following ingredients. Then the chef decides to make more than 1 batch of the recipe. Fruit Cups U
    10·2 answers
  • $53,000 is placed in an investment account that grows at a fixed rate of 2% (compound growth) per year. how much is in the accou
    8·1 answer
  • A luxury resort is offering an incentive discount. If you book your room six months in advance, you will save 15% off the price
    6·1 answer
  • 4.14 Defective rate. A machine that produces a special type of transistor (a component of computers) has a 2% defective rate. Th
    15·1 answer
  • Researchers have created a prediction equation to predict a state’s average SAT score (Y’) using the percentage of HS seniors wh
    9·1 answer
  • A surf instructor has an initial fee of $12 and charges $8
    13·2 answers
  • When Bermuda (B), Puerto Rico (P), and Miami (M) are joined on a map using straight lines, a triangle is formed. This triangle i
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!