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4 years ago

Let x = 20. Which expression has a value greater than 4x−10 ? A. 5x−30 B. 5x−100 C. 8(x−10) D. 5(2x−26)

Mathematics

2 answers:

Grace [21]4 years ago

8 0

4(20)-10=70

8*(x-10)
8*10=80
so option c

sesenic [268]4 years ago

6 0

C. 8*(x-10)=8(20-10)=80

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These are the first four terms of a sequence. 3 -1 -5 -9. Find the nth term.

podryga [215]

Answer:

4n-1

Step-by-step explanation:

Diffrence bweetween each number, 3 and -1, -1 and -5, -5 and -9 is 4

find the closest numbers

4*1=4

4*0=0

4*-1=-4

4*-2=-8

now we figure out how to make these numbers into our terms of this sequence

4n-1

4*1-1=3

4*0-1=-1

4*-1-1=-3

4*-2-1=-9

so the nth term is 4n-1

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2 years ago

Round 5.05870925358 to 4 decimal places.

aniked [119]

Answer:

5.0587

Step-by-step explanation:

"four decimal places" would be the numerals 0587. Since that 7 is followed by a zero, we round off 5.05870925358 to 5.0587. This is "to 4 decimal places."

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3 years ago

Please help, I’m struggling

Naddika [18.5K]

Answer:

49.5 mi

Step-by-step explanation:

Area of a triangle is A = (height) X (base) / 2

So if you plug in the numbers you get:

806.9 = (32.6) X (base) / 2

1613.8 = (32.6) X (base)

1613.8 / 32.6 = base

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8 0

3 years ago

Sven has a lawn mowing business. He earns $30 for every 2 weeks of mowing

NeX [460]

Whats your question? What are you trying to find?

4 0

2 years ago

Please Please Please help me with this answer

nignag [31]

Alright, lets gets tarted.

Suppose there are x rows of tomato plants Krystyn make.

Again suppose there are n plants in each row.

We could find total plants by multiplying number of plants in each row with number of rows.

Hence total number of plants will be = $x * n$

But as per question, total number of plants are 54. It means

$x * n = 54$

Now, the number of plants in each row was 3 more than the number of rows means

$n = x + 3$

Putting this value of n in first equation we made

$x * (x+3) = 54$

$x^{2} + 3x = 54$

Subtracting 54 in both sides

$x^{2} + 3x - 54 = 54 - 54$

$x^{2} + 3 x - 54 = 0$

Factoring

$(x-6)(x+9) = 0$

Means x = 6 or x = -9

The number of rows can not be negaive.

Hence x = 6

It means number of rows of tomato plants will be 6. : Answer

Hope it will help :).

4 0

4 years ago

Read 2 more answers