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3 years ago

at the dog show there are four times as many boxers as spaniels if there are a total of 30 dogs how many dogs are spaniel

2 answers:

8 0

The dogs are going to be labeled x. This problem can be represented by the equation 4x+x=30, because there are 30 dogs total and 4x is the boxers and x is the spaniels. We then solve for x, 5x=30, x=6. Then we can plug this x value into the equations for boxers and spaniels, finding that there are 24 boxers and 6 spaniels.

makkiz [27]3 years ago

8 0

24/4=6 first try correct 24 boxers 6 spaniels

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Step-by-step explanation:

Reminder: since the 25% is a tax rate which we need to subtract from the salary, 75% would be what is left over from the salary after taxes.

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Scientist are studying a bacteria sample. The function f(x)=360(1.07)^x gives the number of bacteria in the sample at the end of

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Options :

A. The initial number of bacteria is 7.

B. The initial of bacteria decreases at a rate of 93% each day.

C. The number of bacteria increases at a rate of 7% each day.

D. The number of bacteria at the end of one day is 360.

Answer:

C. The number of bacteria increases at a rate of 7% each day.

Step-by-step explanation:

Given the function :

f(x)=360(1.07)^x ; Number of bacteria in sample at the end of x days :

The function above represents an exponential growth function :

With the general form ; Ab^x

Where A = initial amount ;

b = growth rate

x = time

For the function :

A = initial amount of bacteria = 360

b = growth rate = (1 + r) = 1.07

If ; (1 + r) = 1.07 ; we can solve for r to obtain the daily growth rate ;

1 + r = 1.07

r = 1.07 - 1

r = 0.07

r as a percentage ;

0.07 * 100% = 7%

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