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Fiesta28 [93]
2 years ago
8

10 - 2.5x > 35I need help​

Mathematics
2 answers:
kvasek [131]2 years ago
8 0

Answer:

x<-10

Step-by-step explanation:

10-2.5x>35

2.5x>10-35

2.5x>-25

x>-25/2.5

x>-10

x<-10

erica [24]2 years ago
8 0

Answer:

x < -10

Step-by-step explanation:

-2.5x > 35-10

-2.5x > 25

-2.5x > 25/-2.5

x > -10

You have to switch the sign because you divided it by negative

x<-10

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Divide 240g in the ratio 5:3:4​
Hoochie [10]

Answer:

100g : 60g : 80g

Step-by-step explanation:

5+3+4 =12 total parts

(5/12 of 240)

5/12 x 240 = 100g

3/12 x 240 = 60g

4/12 x 240 = 80g

Check:

100g + 60g + 80g = 240g

Hope this helps!

6 0
2 years ago
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3 years ago
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masha68 [24]
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8 0
2 years ago
The area of a cross section through the center of a sphere is 46 square inches. Find the surface area of the sphere.
gavmur [86]

Answer:

184 in.^2

Step-by-step explanation:

The cross section through the center of a sphere is a circle whose radius is equal to the radius of the sphere.

area of circle

A_{circle} = \pi r^2

\pi r^2 = 46

r^2 = \dfrac{46}{\pi}

r = \sqrt{\dfrac{46}{\pi}}

r = 3.83 ~in.

surface area of sphere

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SA = 4 \times \pi \times (3.83)^2

SA = 184~in.^2

7 0
3 years ago
Use expressions for odd integers to confirm the conjecture that the product for two odd integers is an odd integer.
Mandarinka [93]

k, n - integers  

2k+1  - an odd integer

2n+1  - another odd integer

The product of them:

  (2k + 1)(2n + 1) =

= 4kn + 2k + 2n + 1 =

= 2(2kn + k + n) + 1

The product of integers (2kn) is integer

and the sum of them (2kn+k+n) also is integer

So  (2k + 1)(2n + 1)  = 2(2kn + k + n) + 1  is an odd integer

4 0
3 years ago
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