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2 years ago

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Last year,Mark was 46 inches tall.This year,Marks height is 3 inches less than peters height.Peter is 51 inches tall.How tall is

mark?
Write an equation to represent the situation.
Then solve the equation to answer the problem.

2 answers:

In-s [12.5K]2 years ago

7 0

Im not sure abbout the equations... but Mark is 48 inches, cuz it says; He WAS 46 in. tall. this year, amrks height is 3 inches LESS than peters height. So now, peter is 51 in. tall How tall is mark NOW? So u just have to minus 51-3 = 48!

zvonat [6]2 years ago

4 0

I think the equation is 51-3=49

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Step-by-step explanation:

Let x represent the age of the uncle.

Let y represent the age of the woman that he married.

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2 years ago

Sum of positive roots of the equation (x2 - 12x + 35) (x2 + 10x + 24) = 504 is

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Answer:

(3)11

Step-by-step explanation:

We are given that

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We have to find the sum of positive roots of the equation.

$x^2(x^2+10x+24)-12x(x^2+10x+24)+35(x^2+10x+24)=504$

$x^4+10x^3+24x^2-12x^3-120x^2-288x+35x^2+350x+840=504$

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$x^4-2x^3-61x^2+62x+336=0$

Factor of 336

2,3,4,6,8,7,

Let x=2

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x=2 is not the root of equation

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Hence x=-2 is the root of equation.

x+2 is a factor of equation.

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Therefore, x=3 is the root of equation.

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$(x+2)(x-3)(x^2-8x+7x-56)=0$

$(x+2)(x-3)(x(x-8)+7(x-8))=0$

$(x+2)(x-3)(x-8)(x+7)=0$

$x-8=0\implies x=8$

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1 year ago

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If you need it without t, then it's:

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We get this because the question said that there were more ten-dollar bills than 6 times the number of one-dollar bills.

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1 year ago

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2 years ago

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Answer:

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The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

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$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{52 - 64}{6}$

$Z = -2$

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2 years ago