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Nastasia [14]
3 years ago
15

Solve this inequality. -5x + 7 42

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
4 0
The answer is either x>-7 or x<-7 I think it is the first one but I haven’t done these in a while so I forget when to switch the signs
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Help me out please !!!!
Brums [2.3K]

Answer:

0.06 liters

Step-by-step explanation:

acid concentration of 65% means that it of 100 units of that solution 65 are acid, and the remaining 35 are water.

so, 100 units are 0.2 liters in this example.

that means that 65/100 × 0.2 = 0.13 liters are acid.

35/100 × 0.2 = 0.07 liters are water

we get a 50% concentration, when we have the same amount of water and acid in the solution (acid is only half of 50% of the solution).

the account of acid remains the same, as we are only adding water.

so, how much water do we need to get from 0.07 liters to 0.13 liters (the same as the already present acid) ?

0.13 - 0.07 = 0.06 liters

4 0
3 years ago
If The diameter of a circle is 14 yards.what is the circles circumference
amm1812

Answer:

14π yards^2, or 43.98^2 yards rounded to 2dp

Step-by-step explanation:

circumference = diameter x π

6 0
3 years ago
10=1+w solve for w please help me
ivann1987 [24]

Answer:

W=9

Step-by-step explanation:

=> 10-1=W (Transpose 1 of R.H.S to L.H.S)

=> 9=W

Hope this helps you.

5 0
2 years ago
Read 2 more answers
Can anybody help me?​
GenaCL600 [577]

Answer:

im literally doing the same question , i hope someone helps us .  

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Frank purchased an air conditioner for $3000. Its value depreciates at a rate of 8% each year. How much will the air conditioner
Lina20 [59]

Answer:

$2280

Step-by-step explanation:

Given: Cost of Air conditioner= $3000.

            Rate of depreciation= 8%

            Number of year= 3 years.

Now, finding the depreciation for 3 years.

Depreciation= \frac{Cost\ of\ air\ conditioner\times rate\ of\ depreciation\times years}{100}

Amount of depreciation= \frac{\$ 3000\times 8\times 3}{100} = \$ 30\times 24

∴ Amount of depreciation in 3 years is $720.

Cost of Air conditioner after 3 years= Original\ cost - Amount\ of\ depreciation

⇒ Cost of Air conditioner after 3 years= \$ 3000-\$ 720= \$ 2280.

∴ Cost of Air conditioner in 3 years is $2280.

5 0
3 years ago
Read 2 more answers
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