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3 years ago

E these word problems. Check your answers.

Mathematics

1 answer:

hammer [34]3 years ago

6 0

Answer:47.38

Step-by-step explanation:175.50/100 x27

im not that sure

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What is the value of x in the equation Three-fifths x = negative 45?

ryzh [129]

Answer:

x = -75

Step-by-step explanation:

$\frac{3}{5} x=-45\\\\3x=-225\\x=-75$

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2 years ago

Which property of real numbers is shown below?<br><br> -6 + 6 = 0

Aneli [31]

Answer:

Additive inverse property

Step-by-step explanation:

When you add opposites you get 0.

Another word for opposites is additive inverses.

This is the additive inverse property.

It says when you do -a+a or a+(-a) you get 0 for any number a.

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2 years ago

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Help pls need answer

blagie [28]

Answer:

Step-by-step explanation:

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3 years ago

Solve the inequality 2x>30+5/4x

insens350 [35]

Answer:

Step-by-step explanation:

$2x > 30+\frac{5}{4x} \\2x-\frac{5}{4x} > 30\\\frac{8x^2-5}{4x} > 30\\case~1\\if~x > 0\\8x^2-5 > 120x\\8x^2-120x > 5\\x^2-15x > \frac{5}{8} \\adding~(-\frac{15}{2} )^2~to~both~sides\\(x-\frac{15}{2} )^2 > \frac{5}{8}+\frac{225}{4} \\(x-\frac{15}{2} )^2 > \frac{455}{8} \\x-\frac{15}{2} < -\sqrt{\frac{455}{8} } \\x < \frac{15}{2}-\sqrt{\frac{455}{8} } \\or~x < 0\\rejected~as~x > 0$

$x-\frac{15}{2} > \sqrt{\frac{455}{8} } \\x > \frac{15}{2} +\sqrt{\frac{455}{8} }$

case~2

$if~x < 0\\8x^2-5 < 120x\\8x^2-120x < 5\\x^2-15x < \frac{5}{8} \\adding~(-\frac{15}{2} )^2\\(x-\frac{15}{2} )^2 < \frac{5}{8} +(-\frac{15}{2} )^2\\|x-\frac{15}{2} | < \frac{5+450}{8} \\-\sqrt{\frac{455}{8} } < x-\frac{15}{2} < \sqrt{\frac{455}{8} } \\\frac{15}{2} -\sqrt{\frac{455}{8} } < x < \frac{15}{2} +\sqrt{\frac{455}{8} } \\but~x < 0\\7.5-\sqrt{\frac{455}{8} } < x < 0$

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1 year ago

Slope-Intercept Form

vovikov84 [41]

Answer:

y = -2x + 3

Step-by-step explanation:

m = -2

y = -2x + b

3 = 0 + b

b = 3

y = -2x + 3

5 0

3 years ago

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