3 years ago

Please help fast! 7×2/3 = ____ x 1/3

Mathematics

2 answers:

Oksana_A [137]3 years ago

4 0

Answer:

Step-by-step explanation:

dem82 [27]3 years ago

4 0

Answer:

Step-by-step explanation:

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Answer:

Step-by-step explanation:

5:3. there are 5 balls, and 3 rackets

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Write the simplified expression: 2(-2n + 2)

devlian [24]

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-4n+4

Step-by-step explanation:

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3 years ago

Can someone do these? xD

Alenkinab [10]

16 = G + C
C = G - 6
16 = G + G - 6
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20 = B + K
B = 3K
20 = 3K + K
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3 years ago

The time t required to drive certain distance varies inversely with the speed r. It takes 2 hours to drive the distance at 40 mi

Roman55 [17]

Answer:

$\frac{16}{9}$ hours

Step-by-step explanation:

Whenever 2 quantities (suppose a and b) are inversely proportional to each other, we can write an proportionality equation (with k as proportional constant) as:

$a=\frac{k}{b}$

Since, here t is INVERSELY PROPORTIONAL to r, we can say:

$t=\frac{k}{r}$

Firstly, we have t = 2 hour and r = 40 mph, so we find k:

$t=\frac{k}{r}\\2=\frac{k}{40}\\k=2*40\\k=80$

Now, secondly, we have r = 45 and k = 80, we need to find t:

$t=\frac{80}{45}\\t=\frac{16}{9}$

So, it would take $\frac{16}{9}$ hours

4 0

3 years ago