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sattari [20]
4 years ago
13

A plane travels 990 miles to London and back. the trip there was with the wind.it took 10 hours.the trip back was into the wind.

the trip back took 22 hours.What is the speed of the plane in still air?What is The speed of the wind?
A.plane 98 mph,wind :21 mph
B.plane 72 mph,wind: 27 mph
C.plane 62 mph, wind: 43 mph
D.plane 30 mph,wind: 17 mph
Mathematics
2 answers:
tino4ka555 [31]4 years ago
7 0

Answer:

C.

Step-by-step explanation:

pretty positive! :) hope it helps you

kondaur [170]4 years ago
5 0

The answer is B.Plane 72 mph; Wind 27 mph

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Delvig [45]
Yes it is The hypotenuse  is  10 cms long.
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10^2 = 8^2 + 6^2

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3, 4 and 5

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5 0
3 years ago
Charlie wants to order lunch for his friends. He’ll order 6 sandwich’s and a $3 kids meal for his little brother Charlie had $27
Vera_Pavlovna [14]
The answer is 4, first you the $27 and subtract the $3, then u take 24 and divide it by 6
8 0
3 years ago
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Calculate the value of P and of Q that satisfy the following simultaneous linear equations.
luda_lava [24]

  1. 0.5p -3q =11
  2. 5p +6q =2

1) ×-2

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2) - 3)

6p =24

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sub into 2)

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5 0
3 years ago
For the funtion f(x)= (x+7)^5, Find f^-1 (x)
quester [9]

Answer:

The inverse of function f(x)= (x+7)^5 is \mathbf{f^{-1} (x)=\sqrt[5]{x}+7}

Option A is correct option.

Step-by-step explanation:

For the function f(x)= (x+7)^5, Find f^{-1} (x)

For finding inverse of x,

First let:

y=(x+7)^5

Now replace x with y and y with x

x=(y+7)^5

Now, solve for y

Taking 5th square root on both sides

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Now, replace y with f^{-1} (x)

f^{-1} (x)=\sqrt[5]{x}+7

So, the inverse of function f(x)= (x+7)^5 is \mathbf{f^{-1} (x)=\sqrt[5]{x}+7}

Option A is correct option.

6 0
3 years ago
Four more than 3 times a number t written asfour
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~cupcake
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