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Harlamova29_29 [7]
3 years ago
12

¿cuantos kilogramos de agua deben evaporarse de 75kg de una solucion salina al 15% para producir una produccion al 20%?

Mathematics
1 answer:
dimulka [17.4K]3 years ago
8 0
Earning points would be the correct answer
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Isthe number a fact of 6? Write yes or no.
dem82 [27]
3 no
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7 0
4 years ago
The formula sa
sergeinik [125]

Answer:

The correct option is (b).

Step-by-step explanation:

The formula for the side of a cube of surface area SA is as follows :

s=\sqrt{\dfrac{SA}{6}}

When SA = 180 m²

s=\sqrt{\dfrac{180}{6}}\\\\s=\sqrt{30}

When SA = 120 m²

s=\sqrt{\dfrac{120}{6}}\\\\s=\sqrt{20}\\\\=2\sqrt5

Difference,

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So, the correct option is (b).

8 0
3 years ago
What is (-1 1/2) to the 3 power
saw5 [17]

Answer:

-3.375

Step-by-step explanation:

1. convert -1 1/2 to -3/2

2. (-3/2)^3

3. -27/8

4. -3.375

brainliest maybe ?

6 0
3 years ago
Can anyone help! thanks !
tekilochka [14]

Answer:

x = 37°

Step-by-step explanation:

the sum of the exterior angles of a convex polygon is 360° so the sum of all the angles must yield to 360°.

just a trial!!!!!

x+2x+x+10+x+18+3x+x-1=360°

9x=333

x= 37°

7 0
2 years ago
Read 2 more answers
a poll found that 61% of a random sample of 1078 adults said that they believe in ghosts. find the margin of error for this poll
fenix001 [56]

It said that a poll found that 61% of a random sample of 1078 adults said that they believe in ghosts which gives a less believable percentage they are looking for a 90%  of a random sample of 1078 adults said that they believe in ghosts.

Hope this helped!

Can I have brainliest please?

6 0
4 years ago
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