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mihalych1998 [28]
3 years ago
13

How do I solve this

Mathematics
1 answer:
pashok25 [27]3 years ago
4 0

Answer: Buses 385

Vans 25

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Solve for R using cross multiplication
topjm [15]

R/ r+ 15 = 3/8

Cross multiply: top of one side multiplied by bottom of other side:

R x 8 = 3 x r+ 15

Simplify:

8r = 3r + 45

Subtract 3r from both sides:

5r = 45

Divide both sides by 5:

R = 9

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Solve 4 | x + 7 |= 24.
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Answer: x = -1, -13

Step-by-step explanation:

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Which estimation technique will yield a solution that is closest to the actual product of (–21.06)(–30.45)?
Naddik [55]

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The answer is C. Rounding to the nearest whole number.

Step-by-step explanation:

Please mark me brainliest

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Represent each fraction on the number line <br><br> 0————1
Akimi4 [234]
The answers are 1/5,2/5,3/5,and 4/5
5 0
3 years ago
Can you guys help we with this question. ​​​​​​
satela [25.4K]

Answer:

40

Step-by-step explanation:

(2x+1/(2x))^5 *(2x -1/(2x))^5

= ((2x)^2 -1/(2x)^2)^5 (a+b)*(a-b) =a2-b2

= (4x^2-1/4(x)^2)^5

now

x =4x^2. ,a = 1/4(x)^2 ,n =5

we have

general term = Cr *x^r *a^(n-r)

= Cr * (4x^2)^r * (1/4(x)^2)^(n-r)

= Cr *4^r * X^2r * 1/( 4^(n-r) *x^(2n-2r)

= Cr * 4^r/4^(n-r) * x^(2r)/x^(2n-2r)

= Cr * 4(2r-n) *x(4r-2n)

now for x^2

4r-2n = 2

4r -10=2

4r =12

r = 3

now for coeff

C(5,3) * 4^(2*3-5)

5!/(3!*(5-3)!) * 4

5*4/(2*1)*4

40

4 0
2 years ago
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