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3 years ago

14

Josh had $12.80 to spend for lunch. For lunch, he purchased two hamburgers that cost $2.75 each, cheese fries that cost $1.85, a

nd a drink that cost $2.18. How much money did Josh have left after he purchased his lunch? *

1 answer:

GREYUIT [131]3 years ago

4 0

He had $3.27 left 2.75x2)+1.85+2.18+9.53 12.80-9.53=3.27 left

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A large company put out an advertisement in a magazine for a job

vova2212 [387]

Answer:

<em>C(19)=12 responses</em>

Step-by-step explanation:

<u>Exponential Decay Function</u>

The exponential function is frequently used to model natural growing or decaying processes, where the change is proportional to the actual quantity.

An exponential decaying function can be expressed as follows:

$C(t)=C_o\cdot(1-r)^t$

Where:

C(t) is the actual value of the function at time t

Co is the initial value of C at t=0

r is the decaying rate, expressed in decimal

The company puts out an advertisement for a job opening. Initially, the company got 90 responses to the advertisement. Each day, the responses declined by 10%.

This is an example where the decay model can be used to calculate the responses to the advertisement at the day t.

The initial value is Co=90, the decaying rate is r=10% = 0.10. The model is written as:

$C(t)=90\cdot(1-0.1)^t$

Calculating:

$C(t)=90\cdot(0.9)^t$

We are required to calculate the number of responses at day t=19, thus:

$C(19)=90\cdot(0.9)^{19}$

C(19)=12 responses

8 0

3 years ago

Can you help me i dont know thw anwser

Margaret [11]

$\text{Let the side of square 1, square 2 and square 3 be x, y and z respectively.}\\\\\text{Given that,}\\\\\text{Perimeter of square 1,~~ p =100 units.}\\\\\text{So}~ x=\dfrac p 4 = \dfrac{100}4 =25~\text{units.}\\\\\\\text{Area of square 2, a = 225 units}^2\\\\\text{So}~y = \sqrt{a} = \sqrt {225} = 15~ \text{units.}\\\\\text{Use Pythagorean theorem to find z}^2\\\\x^2 =y^2 +z^2 \\\\\implies 25^2 = 15^2 +z^2\\\\\implies z^2 = 625 - 225 = 400\\\\\\$

$\text{Hence the area of square 3 is 400 units}^2.$

8 0

3 years ago

Read 2 more answers

For this problem what I did was that I multiplied 100 x 34 = 3,400 and subtracted that answer with 5,086. The answer I got was 1

inessss [21]

Answer:

The answer rounded to the nearest whole number is 1729

Step-by-step explanation:

Set it up like this: Percent in fraction form = x over total

So: 34/100 = x/5086

You then multiply: 34 x 5086 = 172924

Then divided that number by 100: 172924 divided by 100 = 1729.24

Then round the number to the nearest whole number: 1729

Hope this helps good luck!

3 0

2 years ago

Divide Rs750 in the ratio of 2:3

White raven [17]

Answer:

Rs. 450 and Rs. 300

Step-by-step explanation:

Step 1: Add the ratios; 3 + 2 = 5

Step 2: Put each ratio over the total, to see what proportion each part receives 3/5 and 2/5

Step 3: Multiply the 750 by the fraction to calculate the proportion that each part contains

3/5 x 750 = Rs. 450

2/5 x 750 = Rs. 300

5 0

3 years ago

Read 2 more answers

Bob's gift shop sold a record number of cards for Mother's Day. One salesman sold 20 cards, which was 5% of the cards sold for M

iren [92.7K]

Answer:

400 cards

Step-by-step explanation: $20\div5$ %

<u><em>Calculate</em></u>

<u><em /></u> $\frac{20}{0.05}$

<u><em>Multiply both the numerator and denominator with the same integer</em></u>

<u><em /></u> $\frac{2000}{5}$

<u><em>Cross out the common factor</em></u>

<u><em /></u> $400$

<em>I hope this helps you</em>

<em>:)</em>

8 0

2 years ago