3 years ago

10 times as many as blank tens is 30 tens

Mathematics

1 answer:

yKpoI14uk [10]3 years ago

8 0

The answer to that question will be 3

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What is the slope of the line?<br> m=

telo118 [61]

Answer:

m = 1/4

Step-by-step explanation:

slope = rise / run

rise = 1 (red arrow)

run = 4 (dotted line)

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1 year ago

What would the answer be for this equation 7x/20 - 5x/12

hodyreva [135]

Answer:

$\frac{1}{15} x$

Step-by-step explanation:

$\frac{7x}{20} - \frac{5x}{12}$

$\frac{3 \times 7x}{3 \times 20} - \frac{5 \times 5x}{5 \times 12}$

$\frac{21x}{60} - \frac{25x}{60}$

$\frac{21x - 25x}{60} = (21 - 25)x = - 4x$

$\frac{ - 4x}{60} = - \frac{ x}{15}$

$\boxed{\green{= \frac{1}{15} x}}$

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2 years ago

What value of x is in the solution set of -5x - 15 > 10 + 20x?

Georgia [21]

Answer:

-1>x

Step-by-step explanation:

-5x - 15 > 10 + 20x

Add 5x to each side

-5x+5x - 15 > 10 + 20x+5x

-15> 10+25x

Subtract 10 from each side

-10 - 15 > 10-10 + 25x

-25> 25x

Divide each side by 25

-25/25> 25x/25

-1>x

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3 years ago

If x-3 is a factor of x3+4x2+kx-30.Find the value of k.

Bogdan [553]

Answer:

k=-11

Step-by-step explanation:

$x^{3}+4x^{2}+kx-30$

if $x-3$ is a factor,

$(3)^{3}+4(3)^{2}+k(3)-30=0\\27+4*9+3k-30=0\\27+36+3k-30=0\\33+3k=0\\3k=-33\\k=-11$

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3 years ago

What is the definition of percent of change

Sonja [21]

Ratio of amount of change to original shown as a percent.

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3 years ago