3 years ago

eight out of 10 dentist prefer Crest toothpaste.What is the ratio of dentist whi prefer Crest to those who do

Mathematics

1 answer:

crimeas [40]3 years ago

6 0

The ratio would be 8:2

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denis-greek [22]

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=38/15+−31/2

=−389/30

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3 years ago

3x+5y-4=0<br> what is the slope and y-intercept?

zaharov [31]

Answer:

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2 years ago

What is the set of all solutions to the equation \sqrt{x + 2}= {-x} x+2 =−xsquare root of, x, plus, 2, end square root, equals

NARA [144]

Answer:

$x = 2$ or $x = -1$

Step-by-step explanation:

Given

$\sqrt{x + 2}= {-x}$

Required

Find the possible values fo x

$\sqrt{x + 2}= {-x}$

Square both sides

$( \sqrt{x + 2})^2= ({-x})^2$

$x + 2 = x^2$

Equate to 0

$x^2 - x - 2 = 0$

Expand

$x^2 + x -2x - 2 = 0$

Factorize:

$x(x + 1) - 2(x + 1) = 0$

$(x -2)(x +1) = 0$

Split:

$x - 2 = 0$ or $x + 1 = 0$

$x = 2 + 0$ or $x = 0-1$

$x = 2$ or $x = -1$

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2 years ago

ms.jones tooke her family to the movies. there were a total of 12 people. children tickets cost $5 and adults tickets cost $10.

solmaris [256]

Answer:

5 children

Step-by-step explanation:

7 adults = $70

5 children = $25

total= 12 people

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therefore 5 children went

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3 years ago

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When evaluating (6x+9)^2 - 5 for x = 1, the given value of 1 is substituted for what part of the expression?

Naya [18.7K]

The correct answer would be C. The variable

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3 years ago

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