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3 years ago

2x+5 is greater than 50

Mathematics

2 answers:

Marta_Voda [28]3 years ago

7 0

Answer:

Step-by-step explanation:

2x + 5 > 50 x will be the minimum value to make this inequality true. Subtract 5 from both sides.

2x + 5 - 5 > 50 - 5 Do the subtraction

2x > 45 Divide by 2

2x/2 > 45/2 Do the division

x > 22.5 So anything larger then 22.5 will make 2x + 5>50

For example, let x = 22.6

2*22.6 + 5 > 50

45.2 + 5 > 50

50.2 > 50

50.2 is greater than 50

katrin2010 [14]3 years ago

6 0

2x+5=50
-5 -5
—————-
2x = 45
Divide by 2
45/2 = 22.5
I hope this makes sense

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Suppose f varies directly as g, and f varies inversely as h. Find g when f = 10 and h = –12, if g = 56 when h = –2 and f = –7. R

kow [346]

Answer:

-480

Step-by-step explanation:

If f varies directly as g, and inversely as h, then we can write the variation equation:

$f=\frac{kg}{h}$ , where k is the constant of variation.

If g=56 when h=-2 and f=-7, then we substitute these values into the formula to find the value of k.

$-7=\frac{k(56)}{-2}$

$-7\times -2=56k$

$k=\frac{14}{56}=\frac{1}{4}$

The equation now becomes:

$f=\frac{g}{4h}$

if f=10 and h=-12, then;

$10=\frac{g}{-48}$

$g=-48\times 10=-480$

The correct answer is B.

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3 years ago

Estimate the answer to 341÷28

Dmitriy789 [7]

To estimate this question, you can round the numbers to be compatible, to make it easier for yourself. The numbers should be able to be divided cleanly, as this is an estimate, not the actual problem solving. You could, for example, round 341 to 300, and 28 to 30, and divide them to get 10.
Hope that helped.

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3 years ago

Read 2 more answers

The difference between -87 and -125.62?

marshall27 [118]

Answer:

38.62

Step-by-step explanation:

You can figure this out by converting these to a positive number, then subtracting the lower number from the higher number.

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