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Alla [95]
3 years ago
7

Hello! I have a few questions from my maths book that I'm really struggling to understand.. please help!

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
7 0
Sorry I am not sure that looks pretty difficult
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Brad owns 3 surfboards and 2 wet suits. If he takes one surfboard and one wet suit to the beach, how many different combinations
Reptile [31]

Answer:

1

Step-by-step explanation:

He only has 1 wetsuit and 1 surfboard.

6 0
3 years ago
Joshua is planning on 1404 miles driving trip his car gets an average of 36 miles per gallon the cost of gas is about $3.72 per
anastassius [24]

Answer:

Hence, his driving cost of the trip= $ 145.

Step-by-step explanation:

It is  given that:

Joshua is planning on 1404 miles driving trip.

His car gets an average of 36 miles per gallon.

i.e. for 36 miles his car uses 1 gallon of gas.

Hence for 1 mile his car uses=1/36 gallon of gas.

Hence, for 1404 miles his car uses=1404/36 gallon of gas

                                                         = 39 gallons.

Cos of 1 gallon of gas= $ 3.72

Cost of 39 gallons of gas=$ (3.72×39)=$ 145.08

which is approximately equal to $ 145.

Hence approximately his driving cost of the trip is $145.

5 0
3 years ago
A rectangle has a length 3 times the width. What is the perimeter in terms of x?
Marina CMI [18]

Answer:

Perimeter is equal to all four sides added together.

Length = 3W; L=3W

So

P = 2(W) + 2(L)  substitute the equation for length above you get

P = 2(W) + 2(3W)  and combine

P = 2W + 6W = 8W; put in what the perimeter is and solve for W

66 = 8W, so W = 8.25

W = 8.25, L = 24.75

7 0
3 years ago
How do you answer this?
lidiya [134]
(a + b)^3 = a^3 + 3a^2b + 3ab^2+ b^3 
(a +(- b))^3 = (a-b)^2 =  a^3 - 3a^2b + 3ab^2- b^3  
7 0
3 years ago
X^2 +<br>1/x^2<br>+12(x+1/x) +38, <br>​
sergiy2304 [10]

Answer:

44

Step-by-step explanation:

5 0
3 years ago
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