Help me please! I need to pass :(

Clare is paid $90 for 5 hours of work. At thos rate how many seconds does i take for her to earn 25 cents?

natka813 [3]

We are given

Clare is paid $90 for 5 hours of work

Total money paid =$90

total hours of work =5 hours

so, firstly we will find rate of work

rate of work = ( total money paid)/( total hours of work)

now, we can plug values

and we get

The rate of work is

$=\frac{90}{5}$

$=18$ $/ hour

now, we have to find time for amount paid is 25 cents

so, amount paid =25 cents

100 cents =1$

so, amount paid =$ 0.25

Since, the rate is constant

so, we can take same rate here

now, we can use formula

rate of work = ( total money paid)/( total hours of work)

now, we can plug values

$18=\frac{0.25}{T}$

now, we can solve for T

$T=\frac{0.25}{18}$ hour

since, T is in hours

so, we can change into seconds

1 hour =3600seconds

so, we can plug

$T=\frac{0.25}{18}\times 3600$ seconds

$T=50$ seconds......................Answer

6 0

3 years ago

13.55080383<br>16.36940144<br>+ 9.4567438

skelet666 [1.2K]

Answer: not rounded: 39.37694907

Rounded to the nearest tenth: 39.4

Step-by-step explanation:

I suggest using a calculator lol! Hope this helped!

4 0

3 years ago

Find the discriminant of x2-6x -10 = 0, and determine the number of real solutions of the equation.

sergiy2304 [10]

Answer:

76

2 real solutions

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

<u>Algebra I</u>

Standard Form: ax² + bx + c = 0

Discriminant: b² - 4ac

Positive - 2 solutions
Equal to 0 - 1 solution
Negative - No solutions/Imaginary

Step-by-step explanation:

<u>Step 1: Define</u>

x² - 6x - 10 = 0

<u>Step 2: Identify Variables</u>

<em>Compare quadratic.</em>

x² - 6x - 10 = 0 ↔ ax² + bx + c = 0

a = 1, b = -6, c = -10

<u>Step 3: Find Discriminant</u>

Substitute in variables [Discriminant]: (-6)² - 4(1)(-10)
[Discriminant] Evaluate exponents: 36 - 4(1)(-10)
[Discriminant] Multiply: 36 + 40
[Discriminant] Add: 76

This tells us that our quadratic has 2 real solutions.

8 0

3 years ago

Graduation is 3 years away and you want to have $850 available for a trip. If your bank is offering a 3-year CD (certificate of

irina1246 [14]

Answer:

We need to put $801.88 amount in the bank.

Step-by-step explanation:

given that

t=3 yr

Need amount $850 after 3 yr so P= $850

Interest rate=2%

We know that for simple interest

$P=A\left(1+\dfrac{rt}{100}\right)$

Where r is the Interest rate,t is the time,A is the present amount and P is principle amount after t time.

Here given that P= $850

So now putting the values

$850=A\left(1+\dfrac{2\times 3}{100}\right)$

So A=$801.88

We need to put $801.88 amount in the bank.

7 0

4 years ago

Barry's final score is 45 which player had the greater final score?

natali 33 [55]

The player with the greater final score is of:

Barry.

<h3>How to obtain which player had the greater final score?</h3>

Barry's final score is given as follows:

45.

Then we have to obtain Lee's score, from the description given in the missing information section.

Lee's scored is obtained as follows:

Starts at -350.

Answers a 275-point question correctly, hence - 350 + 275 = -75.

Answers a 70 - point question correctly, hence -75 + 70 = -5.

Answers a 50 - point question incorrectly, hence: -5 - 50 = -55.

Thus Lee's final score is given as follows:

-55.

The classifications of the final scores according to the signals are given as follows:

Barry: positive score.

Lee: negative score.

A positive score will always be greater than a negative score, hence Barry had the greater final score.

<h3>Missing information</h3>

Lee and Barry play a trivia game in which questions are worth different numbers of points. If a question is answered correctly, a player earns points. If a question is answered incorrectly, the player loses points. Lee currently has -350 points.

a. Before the game ends, Lee answers a 275 -point question correctly, a 70 -point question correctly, and a 50 -polnt question incorrectly. Write and find the value of an expression to find Lee's final score.

b. Barry's final score is 45. Which player had the greater final score?

More can be learned about addition of measures at brainly.com/question/24342899

#SPJ1

5 0

2 years ago