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bazaltina [42]
3 years ago
15

Jeffrey is going to charge an initial fee for mowing lawns of $10 and then wants to charge an hourly rate. If he knows that he w

ants to charge a total of $40 to mow his neighbors yard and it will take him 2 hours, what should his hourly rate be? A) $10 B) $15 C) $20 D) $25 plzzzzzzzzzzzzzzzzzzzzzz
Mathematics
2 answers:
astraxan [27]3 years ago
7 0
The answer would be B.) $15 because for the total charge of $40 you need to subtract the initial fee of $10 and then divide the remainder by 2 since it takes him 2 hours. <span>40-10/2</span> = <span>30/2</span> = <span>$15 (USA testprep)</span>
Nikolay [14]3 years ago
6 0

Answer:

the answer is d

Step-by-step explanation:

dont listen to that guy he made me get the wrong answer

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cone A has a height of 3 meters and radius of 2 meters. Cone B has the same radius, but height og 6 meters, calculate the volume
Alex73 [517]
The volume of Cone B is twice the volume of Cone A.
4 0
3 years ago
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Janson has quarters and dimes in his pocket. he counted 42 coins that added up to $7.50
vlada-n [284]

Answer:

28 quarters and 5 dimes

7(Q)+5(D)

7(4)+5(10)

28Q      50D          Q=quarters  D=dimes

it would be more efficient to do the substitution method bc its faster and easier

7 0
2 years ago
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How many distinct pairs of perfect squares differ by 35? (the pair $a, b$ is the same as the pair $b, a$.)?
Phantasy [73]
35 has 4 divisors, hence two factor pairs: 1*35 and 5*7. Each corresponds to a set of perfect squares that differ by 35

One pair is ((35±1)/2)^2 = {17^2, 18^2} = {289, 324}
The other is ((7±5)/2)^2 = {1^2, 6^2} = {1, 36}
5 0
3 years ago
A park is 4.6 miles long and 2.7 miles wide. A:what is the total distance around the park? B:if a racecar drove 50 times around
Vlada [557]

Answer:

A) Total distance around the park is 14.6 miles

B) The total distance drove by racer 730 miles

Step-by-step explanation:

Given as :

The length of park = 4.6 miles

The width of park = 2.7 miles

Let the total distance cover around park = Perimeter of park = P miles

So, Perimeter of rectangular park = 2 × Length + 2 × width

or, P = 2 × 4.6 + 2 × 2.7

I.e P = 9.2 + 5.4

Or, perimeter = 14.6 miles

A ) ∴ Total distance around the park = 14.6 miles

B ) The total distance drove by racer = 50 times around the park

  So, The total distance drove by car = 50 × Total distance around the park

∴The total distance drove by car = 50 × 14.6 = 730 miles

Hence A) Total distance around the park is 14.6 miles

          B) The total distance drove by racer 730 miles   answer                                                                              

6 0
3 years ago
What is the derivative of te^-t/2
salantis [7]
Y = t*e^(-t/2)

y' = t' [e^(-t/2)] + t [e^(-t/2)]' = e^(-t/2) + t[e^(-t/2)][-1/2]=

y' = [e^(-t/2)] [1 - t/2] = (1/2)[e^(-t/2)] [2 - t] = - (1/2) [e^-t/2)] [t -2]


5 0
3 years ago
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