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Brut [27]
3 years ago
6

Whats a function rule for this: 7 less than three fifths of b is a

Mathematics
1 answer:
Elanso [62]3 years ago
3 0
(3/5)b - 7 = a

Remember "of" means to multiply. Less than means subtraction: 7 less than means -7.
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A taxi driver wrote a formula to represent the mileage and fee for his last customer. He wrote the equation 3. 00 0. 50 m = 9. 5
Sliva [168]

The statement, which shows the meaning of the taxi driver’s equation for the mileage and fee formula are statement B and E.

<h3>What is linear equation or formula?</h3>

Linear equation or formula is the equation in which the highest power of the unknown variable is one.

Given information-

The formula equation for the mileage is,

3.00+0.50m=9.50

In the above formula the term <em>m </em>represents the number of miles traveled.

This formula written by the taxi driver shows the relation between the mileage and fee for his last customer. Using this expression the number of miles can be calculated as,

3.00+0.50m=9.50

Subtract with 3 both the sides,

0.50m=9.50-3.00\\0.50m=6.50

Divide by number 0.5 both the sides,

m=\dfrac{6.5}{0.5}\\m=13

Thus, his last costumer traveled 13 miles.

The 13 times 0.5 plus $3 is equal to the $9.50 which means nine dollars and fifty cents. Thus the option B is the correct option.

The number of miles traveled by customer is 13 miles. 13 miles of 50 cent  is equal to $6.5. If we add three dollars in it the result will be equal to the nine dollars and fifty cents. Thus the option E is correct.

Hence, the statement, which shows the meaning of the driver’s equation, are,

  • B) Three dollars plus $0.50 times the number of miles is equal to nine dollars and fifty cents.
  • E) The sum of three dollars and the product of 50 cents times the number of miles is nine dollars and fifty cents.

Learn more about the linear equation here;

brainly.com/question/14323743

3 0
2 years ago
Find all real and non-real roots of the function ƒ(x) = x2 + 49. Question 1 options: A) x = –7, 7 B) x = –7i, 7i C) x = –49i, 49
dimulka [17.4K]

Answer:

B

Step-by-step explanation:

f(x) = x²+49 , rewrite the equation

x² +7² =0 , to find the roots make f(x) =0 and subtract 7² from both sides

x² = -7², square root both sides

√x² =√-7², consider √-1 =i

x= ±7i

the roots are -7i and 7i

3 0
3 years ago
Read 2 more answers
What is the difference between constructing and drawing geometric figures? Give a real-world example of each.
NikAS [45]
The difference between constructing and drawing geometric figures is that when constructing a geometric figure, you use compass, protractor, ruler, or any scale with accurate measurement while when drawing geometric figures, you just draw with free-hand. It is not exact in measures. 
7 0
3 years ago
Read 2 more answers
You want to put some money in a simple interest account. It pays 6% interest annually for 2 years. You would like to earn $750 i
poizon [28]
Let present value = P 
interest rate, i = 0.06
time = 2 years
interest amount = 750
then
750 = Pin = P(0.06*2)
Solve for P
P=750/(0.06*2) = $6250

Answer: $6250 must be deposited to earn the desired interest.
4 0
3 years ago
Charmaine works mowing lawns and babysitting. She earns $8.80 an hour for mowing and $8.10 an hour for babysitting. How much wil
FinnZ [79.3K]

Answer:

Charmaine earns $60.90 for 6h for mowing and 1h for babysitting.

Step-by-step explanation:

We must write the data problems.

Charmaine = $8.80/h mowing

Charmaine = $8.10/h babysitting

How much will Charmaine earn for 6 h mowing and 1 h babysitting?

1 h mowing ....................... $8.80

6 h mowing ....................... $x

x = 6 h mowing * $8.80

x = $52,8

To find the total earn of Charmaine, we have to gather the earns from mowing and babysitting.

$52,8 (from mowing) + $8.10 (from babysitting) = $60.90

6 0
3 years ago
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