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3 years ago

ASAP

1 answer:

5 0

The given regression shows the relationship between the numbers of car washed(x) and the amount earned for charity(y).

y = 10x + 20

We are to calculate the amount of charity if 50 cars are washed. Number of cars are represented by x, so by substituting x = 50 in above equation we can find the amount of charity that is earned by washing 50 cars.

y = 10(50) + 20 = $ 520

Thus, the charity can earn $520 if 50 cars come in for a wash.

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What is the y-intercept of the function f(x) = 2.3*?

Sedbober [7]

The answer is C. (0,2)

5 0

2 years ago

Sarah's parents are filling their swimming pool. She wants to know how long it will take. What unit is best used to give the rat

Marat540 [252]

Answer:

B) gallons per hour

Step-by-step explanation:

The pool volume is measured in gallons, so that is the appropriate unit for use in the rate. The time will likely be measured in hours (not minutes or seconds), so that, too, is the appropriate unit for the rate.

_____

Comment on other units

If the pool is filled from a fire hose or other high-volume source of water (irrigation pump, for example), the appropriate units may be gallons per minute. (It might only take 10 to 20 minutes.)

In a metric country, the appropriate units might be liters per minute or hour, or cubic meters per minute or hour. (The pool volume is about 83.3 m³.)

For the problem here, the unit of cups is way too small to be of interest, and (large volume) flow rates are rarely expressed in cups per unit time.

7 0

2 years ago

Suppose you observe a spot exchange rate of $1.50/€. if interest rates are 5% apr in the u.s. and 3% apr in the euro zone, what

Varvara68 [4.7K]

The no-arbitrage 1-year forward rate in $/€, F($/€) is given by

$F(\$/euro)=S(\$/euro)\times \frac{1+i_\$}{1+i_{euro}}$

where S($/euro) is the spot exchange rate in $/€, $i_\$$ is the interest rate in the US and $i_{euro}$ is the exchange rate in the Euro zone.

Thus, given that the spot exchange rate is $1.50/€ and interest rates are 5% apr in the u.s. and 3% apr in the euro zone.

The no-arbitrage 1-year forward rate is given by:

$F(\$/euro)=1.50\times \frac{1+0.05}{1+0.03} \\ \\ =1.50\times \frac{1.05}{1.03} =1.50\times1.019 \\ \\ =\bold{\$1.5291}$

4 0

3 years ago

At a baseball game, Henry bought 5 hotdogs and 3 bags of chips for $14.82. Scott bought 7 hotdogs and 6 bags of chips for $22.89

ki77a [65]

It will be 2.25 per hotdog and 1.19 per chip

7 0

2 years ago

An 8% sales tax is applied to a $300 purchase in Texas. What is the total price with tax

natta225 [31]

Answer:

324

Step-by-step explanation:

Step 1: Find the sales tax

Equation → 300 * 0.08 = x

300 * 0.08 = x

24 = x

Step 2: Find the total

Purchase + Sales Tax

300 + 24

324

Answer: 324

8 0

3 years ago

Read 2 more answers