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3 years ago

5

Need help with this problem ,please and THANK YOU :)

1 answer:

KiRa [710]3 years ago

8 0

Answer:

A

Step-by-step explanation:

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What equation results when you cross - multiply 17/d = 51/21

nekit [7.7K]

Answer:

$51d=357\\\\d=\frac{357}{51} \\\\d=7$

Step-by-step explanation:

A proportion is an equation that defines that two ratios are equal. When the terms of a proportion are cross multiplied, the cross products are equal. Cross multiplication is the multiplication of the numerator of the first ratio by the denominator of the second ratio and the multiplication of the denominator of the first ratio by the numerator of the second ratio:

$\frac{a}{b} =\frac{c}{d} \rightarrow ad=bc$

Therefore:

$\frac{17}{d} =\frac{51}{21} \\\\17*21=d*51\\\\357=51d\\\\Solving\hspace{3} for\hspace{3} d\\\\d=\frac{357}{51} \\\\d=7$

6 0

3 years ago

Anyone Can Help Me Pliz? Its Due Today I Would Appreciate It

Free_Kalibri [48]

Answer:

2.) $258cm^{2$

3.) $72m^{2$

4.) $550m^{2$

5.) $164m^{2$

Step-by-step explanation:

$A=2(wl+hl+hw)$ (surface area of a rectangular prism)

3.) $A=2(wl+hl+hw)=2*(2*6+3*6+3*2)=72m^{2$

4.) $A=2(wl+hl+hw)=2*(5*15+10*15+10*5)=550m^{2}$

5.) $A=2(wl+hl+hw)=2*(3*10+4*10+4*3)=164m^{2$

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3 years ago

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PLEASE HELP NOW<br> what is 9 - 4x^3 + 2x^2 + 8x^3 + 1 + 6x^2 simplified??

gulaghasi [49]

Don’t click the links. Don’t trust it

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3 years ago

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ra1l [238]

The answer should be:
g <( or equal to)200 gal.

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4 years ago

What is the slope of the line represented by the equation y + 3 = -4(x - 5)?

Mazyrski [523]

A. 3 because I did this before and got it Correct

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3 years ago