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Hitman42 [59]
3 years ago
11

Simplify the expression.

Mathematics
1 answer:
MAVERICK [17]3 years ago
5 0
The answer is 6t^2+2.5x^2-0.5t-5.4
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Answer:

2n+8

Step-by-step explanation:

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3 years ago
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Kevin is 3 years older than Daniel. Two years ago, Kevin was 4 times as old as
Korvikt [17]

Answer:

k - 2 = 4d - 8

d + 1 = 4d - 8

Step-by-step explanation:

Daniel's age = d

Kevin's age = k

Given that, k = d + 3 -------------- (1)

Two years ago, the age of Daniel = d - 2

Two years ago, the age of Kevin = k - 2

Since,  two years ago, Kevin was 4 times as old as

Daniel, k - 2 = 4(d - 2)

Opening the bracket,

k - 2 = 4d - 8

Since the value of k is d + 3 (see (1))

d + 3 - 2 = 4d - 8

d + 1 = 4d - 8

(I am just giving the answer cause I LOVE Linear Equation )

1 + 8 = 4d - d

9 = 3d

9/3 = d

3 = d

Therefore, Daniel's present age is 3 and Kevin's present age = 6

Hope You understood

Thank You

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8 0
3 years ago
A bicycle cover a distance of hundred metre in 5 second calculate the speed of the bicycle​
Debora [2.8K]

Answer:

The formula of speed :-

Speed = Distance/Time

Given distance = 10m

Time = 40s

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Step-by-step explanation:

6 0
3 years ago
A2 + b ÷ 3= helpppppppp mmmmmeeeeeeeee! pls
Varvara68 [4.7K]

Answer: 2a/3 + b/3

Since it has two different variables, there is no final answer. To find the answer, you must first expand the equation and then apply the fraction rule.

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(a) In the figure, PQ
Wittaler [7]

Answer:

So I have an Video explain this I don't have enough time to type the answer

Step-by-step explanation:

Click the link below for the video

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