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Maru [420]
3 years ago
12

At the flower show, 1 trolley arrives every 4 minutes to take people to the Rose Pavilion, another trolley arrives every 10 minu

tes take people to the exotic flower greenhouse. Both trollies just arrived at the main building. How many minutes from now will be the next time the trolleys arrive at the main building together?
Mathematics
2 answers:
velikii [3]3 years ago
6 0

Answer:

20 minutes

Step-by-step explanation:

IrinaK [193]3 years ago
5 0

Answer: 20 minutes

Step-by-step explanation: i don’t feel like explaining

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Nadia sees 6 children and 12 adults at a table in a restaurant. Which of the following best
GarryVolchara [31]

Answer:

D

Step-by-step explanation:

There are twice as many adults as children.

8 0
3 years ago
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Prove that 5^7+5^6 is divisible by 6.
pishuonlain [190]

Answer:

The Proof for 5^{7}+5^{6}\ is\ divisible\ by\ 6 is below.

Step-by-step explanation:

To Prove:

5^{7}+5^{6}\ is\ divisible\ by\ 6

Proof:

We know law of indices

a^{m}.a^{n}=a^{m+n}

Therefore,

Step 1: Applying law of indices

\dfrac{5^{7}+5^{6}}{6}=\dfrac{5^{6}.5^{1}+5^{6}}{6}

Step 2: Taking common 5^{6} we get

\dfrac{5^{7}+5^{6}}{6}=5^{6}\times (\dfrac{5^{1}+1}{6})

Step 3: 5^{1} = 5 so add 5 + 1 we get

\dfrac{5^{7}+5^{6}}{6}=5^{6}\times \dfrac{6}{6}

Step 4: Cancel 6 from both denominator and numerator we get

\dfrac{5^{7}+5^{6}}{6}=5^{6}\times 1=5^{6} ...That is Divisible by 6 Proved

7 0
3 years ago
A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is
vampirchik [111]

we know that A has 60% of salt, so if way we had "x" amount of ounces of A solution the amount in it will be 60% of "x", or namely (60/100)*x = 0.6x.

Likewise for solution B if we had "y" ounces of it, the amount of salt in it will be (75/100) * y or 0.75y, thus

\begin{array}{lcccl} &\stackrel{solution}{quantity}&\stackrel{\textit{\% of }}{amount}&\stackrel{\textit{oz of }}{amount}\\ \cline{2-4}&\\ A&x&0.60&0.6x\\ B&y&0.75&0.75y\\ \cline{2-4}&\\ mixture&60&0.65&39 \end{array}~\hfill \begin{cases} x+y=60\\ 0.6x+0.75y=39 \end{cases} \\\\\\ \stackrel{\textit{since we know that}}{x+y=60}\implies y = 60 - x~\hfill \stackrel{\textit{substituting on the 2nd equation}}{0.6x+0.75(60-x)=39}

0.6x+45-0.75x=39\implies -0.15x+45=39\implies -0.15x=-6 \\\\\\ x = \cfrac{-6}{-0.15}\implies \boxed{x = 40} \\\\\\ \stackrel{\textit{we know that}}{y = 60 - x}\implies y = 60-40\implies \boxed{y = 20}

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3 years ago
Need help with angles again brainlest and points !!!
Paul [167]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
Which shows the length of the darkened arc? (The wierd symbol next to the answers is Pi)​
fgiga [73]

Answer:

15 pi

Step-by-step explanation:

The circumference of the circle is given by

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C = pi *18

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We are subtracting 1/6 of the circumference

1/6 *18pi = 3pi

We have 18pi and subtract 3pi = 15pi

The dark shaded arc is 15pi

3 0
3 years ago
Read 2 more answers
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