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3 years ago

A wall takes 10 seconds to strike 6.how much time will it take to strike 12?

1 answer:

3 0

I think it is 20 seconds because when you multiply six times x, you get twelve. And in this case, the x equals two. So, because you multiplied two to six, you do the same thing to the ten seconds, which is twenty. Sorry if this is the wrong answer.

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Find the ratio in which the line segment joining - 2 - 3 and 5 and 6 is divided by x– axis

nexus9112 [7]

Answer:

x axis ?

Step-by-step explanation:

4 0

3 years ago

Ratio equivalent to 1:3

Margaret [11]

2:6

3:9

4:12

These are all equivilant

4 0

3 years ago

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Given the vectors, a=3i+4j, b=-2i+5j, c=10i-j, d=-1/3i+5/2j, find -0.4a-0.3b+0.2d=?

sveta [45]

Answer:

$-\frac{2}{3}i - \frac{13}{5}j$

Step-by-step explanation:

-0.4(3i + 4i) - 0.3(-2i + 5j) + 0.2(- $\frac{1}{3}i$ + $\frac{5}{2}$ j)

-1.2i - 1.6j + 0.6i - 1.5j - $\frac{0.2}{3}$ i + 0.5j

Converting to fraction form;

$-\frac{6}{5}i + \frac{3}{5}i - \frac{1}{15}i - \frac{8}{5}j - \frac{3}{2}j + \frac{1}{2} j$

Solving the i part;

$\frac{-18i + 9i - i}{15}$ = $-\frac{2}{3}i$

Solving the j part;

$\frac{-16j-15j+5j}{10} = -\frac{13}{5}$ j

So -0.4a - o.3b + 0.2d = $-\frac{2}{3}i$ - $\frac{13}{5}j$

6 0

3 years ago

2y+3=11 two y add three = 11

sveticcg [70]

Answer:

y=4.5

Step-by-step explanation:

2y+3=11

2y=11-3

2y=9

y= 4.5

7 0

2 years ago

Isabel is 11 years old. This is 3 years more than twice her brother's age. How old is Isabel's brother? Let b = Isabel's brother

Iteru [2.4K]

The answer would be 4 years old

3 0

3 years ago

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