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den301095 [7]
3 years ago
10

HELP ASAP YOU GET BRAIBLIEST FOR CORRECT ANSWER

Mathematics
2 answers:
salantis [7]3 years ago
7 0

Answer:

8x+9

if you are happy with my answer, please give brainliest :)

Step-by-step explanation:

Combine like terms:

2x+9+6x=8x+9

olga2289 [7]3 years ago
7 0

Step-by-step explanation:

Combine like terms:

2x+9+6x=8x+9

Answer:

8x+9

Plzzzz give me Brainliest!  

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. Fast train gets from the starting to the final station in 4 hours and 20 minutes. The slower local train, whose average speed
madreJ [45]

Answer:

Fast train speed: 69 km/h

Slow train speed: 39 km/h

Step-by-step explanation:

Fast train:

-Time: 4.33

-Speed: x

-Distance: 4.33x

Slow train:

-Time:  7.66

-Speed: x - 30

-Distance: 7.66(x - 30)

7.66(x - 30) = 4.33x

7.66x - 229.8 = 4.33x

3.33x = 229.8

x = 69

3 0
3 years ago
How does finding the square root of a number compare to finding the cube root of a number. Use the number 64 in your explanation
andre [41]
If x^2=y , then \sqrt[2]{y}=\sqrt[2]{x^2}=x

if x^3=y , then \sqrt[3]{y}=\sqrt[3]{x^3}=x


ok
64=8^2=4^3

so
\sqrt[2]{64}=\sqrt[2]{8^2}=8
\sqrt[3]{64}=\sqrt[3]{4^3}=4

well, the cube root usually bigger
7 0
3 years ago
The length of a rectangle is a inches. Its width is 5 inches less then the length. Find the area and perimeter of the rectangle
Travka [436]

Answer:

Area = (a² -5a) in²

Perimeter = (4a -10) in

Step-by-step explanation:

Let the length of the rectangle be a.

Given that, its width is 5 in less than the length.

So,

length ⇒ a

width ⇒ (a - 5)

First, let's find the area of the rectangle.

Area = length × width

Area = a ( a - 5 )

<em>Solve the brackets.</em>

Area = <u>(a² -5a) in²</u>

<u />

Now, let us find the perimeter of the rectangle.

Perimeter = 2 ( l + w )

Perimeter = 2 ( a + a - 5 )

Perimeter = 2 ( 2a - 5 )

Perimeter = <u>(4a -10) in</u>

3 0
2 years ago
$300 at 5% annual interest for 7 years.
e-lub [12.9K]
It's the last one!

Hope this helps!
6 0
3 years ago
Read 2 more answers
a box half full of apples weighs 40kg and the same box one fifth full weighs 22kg. what does the box weigh when empty?
likoan [24]
So in order to answer your question  we calculate 40 - 22 wich gives us the answer of 18, so now we can say that 4/5 of apples weight 18 so now 18 / 4 = 4,5; 4,5 * 5 = 22,5 wich is the weight of apples you can put in the box, to know the answer we deduct the greatest weight of apples only from the weight of the box with those apples so, 40 - 22,5 = 17,5
so the answer to your question is 17,5
i hope i helped you
6 0
3 years ago
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