All categories

2 years ago

There are 20 marbles in a bag. 16 are red. The remaining are white. What is the probability of selecting a red marble

Mathematics

2 answers:

3241004551 [841]2 years ago

7 0

4 marbles white bc 20-16=4

padilas [110]2 years ago

7 0

The probability is 80%
20 Marbles Total
16 Red
16/20=.8=80%

You might be interested in

Which expression defines the given series for seven terms? 15 + 19 + 23 + . . .

dolphi86 [110]

The expression defines the given series for seven terms, i don't understand the question but i do know the sum which you should know to

15 + 19 + 23 = 57

Sorry

5 0

3 years ago

Read 2 more answers

The sales tax for an item was $24.50 and it cost $490 before tax.

Ymorist [56]

The sales tax rate is 5%.

Step-by-step explanation:

Given,

Sales tax for an item = $24.50

Cost of item before tax = $490

Sales tax rate = $\frac{Sales\ tax}{Cost\ of\ item}*100\\$

$Sales\ tax\ rate=\frac{24.50}{490}*100\\\\Sales\ tax\ rate=\frac{2450}{490}\\\\Sales\ tax\ rate=5\%$

The sales tax rate is 5%.

Keywords: sales tax, percentage

Learn more about percentages at:

#LearnwithBrainly

3 0

3 years ago

Please help me!! thank you

Mama L [17]

9514 1404 393

Answer:

x = 1/6

Step-by-step explanation:

The relevant rules of exponents are ...

(a^b)/(a^c) = a^(b-c)

(a^b)^c = a^(bc)

The fraction inside parentheses evaluates to ...

3^(3/4 -3/8) = 3^(3/8)

Then the whole expression evaluates to ...

(3^(3/8))^(4/9) = 3^((3/8)(4/9)) = 3^(12/72) = 3^(1/6)

The value of x is 1/6.

6 0

3 years ago

Find the equation of a line parallel to y - 5x = 10 that passes through the point (3, 10). (answer in slope-intercept form)

NeX [460]

So, a line parallel to y - 5x = 10, will have the same slope as that equation, so what is that slope anyway? let's solve for "y".

 $\bf y-5x=10\implies y=5x+10\implies y=\stackrel{slope}{5}x\stackrel{y-intercept}{+10}$

alrite, so the slope is 5 then, well, then the parallel line will have the same slope.

so, we're really looking for the equation of a line whose slope is 5 and runs through 3,10.

 $\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
&({{ 3}}\quad ,&{{ 10}})
\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies 5
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-10=5(x-3)
\\\\\\
y-10=5x-15\implies y=5x-5$

6 0

3 years ago

Read 2 more answers

Solve the equation for x

Ivahew [28]

Answer:

x = z - m + y

Step-by-step explanation:

Given:

$\displaystyle \large{z = m+x-y}$