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Mathematics

1 answer:

gregori [183]2 years ago

3 0

Answer:

15.62

Step-by-step explanation:

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if 5 billion pennies are minted each year, how long would it take to mint the pennies needed to stack to the sun? plsss show all

dimulka [17.4K]

98 years.
the sun is 432,690 away and a penny is 1.52 mm in thickness
and 1.52 x 5 billion is 7,600,000,000 mm which is 4722.4 miles a year

6 0

1 year ago

What is the x intercept of the equation that passes through (1,-6) and is perpendicular to y=1/3x +1

fomenos

$\bf y=\stackrel{slope}{\cfrac{1}{3}}x+1\impliedby \textit{slope of this line, so a perpendicular will be}
\\\\\\
\textit{perpendicular, negative-reciprocal slope for}\quad \cfrac{1}{3}\\\\
negative\implies -\cfrac{1}{ 3}\qquad reciprocal\implies - \cfrac{ 3}{1}\implies -3\\\\
-------------------------------\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1\\
&&(~1 &,& -6~)
\end{array}$

$\bf slope = m\implies -3
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-(-6)=-3(x-1)
\\\\\\
y+6=-3x+3\implies 0+6=-3x+3\implies 3=-3x\implies \cfrac{3}{-3}=x
\\\\\\
-1=x\qquad \qquad \qquad \qquad \qquad \qquad \qquad (~-1~,~0~)$

8 0

2 years ago

Help will give 20 points

siniylev [52]

Answer:1/3 divided by 6 equals 18

Step-by-step explanation: If you have a cloth that is 1/3 long then divide it by 6 it would look like 1/3 divided by 1/6 which would then equal 1/18.

6 0

2 years ago

One number is 9 more than 3 times another. If their difference is 29, what is the larger number?

vfiekz [6]

Answer:

Step-by-step explanation:

x-3y=9

x-y=29

subtract

-2y=-20

y=10

x-10=29

x=39

6 0

2 years ago

Read 2 more answers

If y varies directly with x and k = 3, what will y equal when x = 2?

Nikolay [14]

Y=3x
x-2
The correct answer is y=6

5 0

2 years ago

Read 2 more answers

. 15 pens at $. 79 each 13 erasers at $.29 each.​

. 15 pens at $. 79 each 13 erasers at $.29 each.