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2 years ago

What is 4/5 divided by 10? A)4/50 or 2/25 B)50/4 or 12 1/2 C)5/40 or 1/8

Mathematics

2 answers:

nlexa [21]2 years ago

4 0

The answer is a since u do 4/5 put the whole number one then leave change flip then simplify

Alexandra [31]2 years ago

4 0

The answer is A; 2/25 and 4/50

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The graph was made to compare the costs of taking two different taxis. What does the intersection mean for the two lines?

Bingel [31]

Answer: The total price of $8 is the same for both taxi cabs for 3 miles.

Step-by-step explanation: if you look at the graph you can see the dot on 8(which is the total cost) and the number of miles is 3

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2 years ago

Divide 28 bottles of water into two groups so the ratio is 3 to 4. Be sure to show your work.

tatyana61 [14]

Answer:

12:16

Step-by-step explanation:

28 split into two groups could be 12 : 16. To check the work, see if 3/4 is equal to 12/16. It is, so this is the accurate ratio, as 12 + 16 = 28 and 12/16 = 3:4.

4 0

2 years ago

Can't figure it out!!

Zanzabum

$\bf slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ f(x_2)}}-{{ f(x_1)}}}{{{ x_2}}-{{ x_1}}}\impliedby 
\begin{array}{llll}
average\ rate\\
of\ change
\end{array}\\\\
-------------------------------\\\\
f(x)= \cfrac{1}{x} \qquad 
\begin{cases}
x_1=2\\
x_2=b
\end{cases}\implies \cfrac{f(b)-f(2)}{b-2}=-\cfrac{1}{10}
\\\\\\
\cfrac{\frac{1}{b}-\frac{1}{2}}{b-2}=-\cfrac{1}{10}\implies 
\cfrac{\frac{2-b}{2b}}{b-2}=-\cfrac{1}{10}\implies \cfrac{2-b}{2b}=-\cfrac{b-2}{10}
\\\\\\
$

$\bf \cfrac{2-b}{2b}=\cfrac{2-b}{10}\implies 20-10b=4b-2b^2\impliedby cross-multiplying
\\\\\\
2b^2-4b-10b+20=0\implies 2b^2-14b+20=0
\\\\\\
b^2-7b+10=0\implies 
(b-2)(b-5)=0\implies b=
\begin{cases}
\boxed{5}\\
2
\end{cases}$

8 0

2 years ago

Help !! Pleaseeeeeeeee

marysya [2.9K]

Answer:

Step-by-step explanation:

arc BE is the same as the interior angle, or 76°

BE = 76 °

we can also find arc CE the same way, b/c we can see that the interior angle is the suppment with 76 or 180-76 = CE or 104°

Now we know all the arcs but arc CD

so use the idea that all the way around the circle is 360°

360 = 76 + 104 + 140 + CD

360 - 76 - 104 - 140 = CD

40 = CD

CD = 40 °

7 0

2 years ago

Please help me??????????!!!!!!!!!

zhenek [66]

Multiply by a across the formula

3 0

2 years ago