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4 years ago

This square is drawn on a one centimetre square grid. Work out the area of the square.

Mathematics

2 answers:

taurus [48]4 years ago

6 0

Answer:

A=9

Step-by-step explanation:

kifflom [539]4 years ago

5 0

Answer:

A=10cm2

Step-by-step explanation:

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The figures are similar. Find the value of the variable. A) y=36

Dovator [93]

Answer:

D y= 81

Step-by-step explanation:

Since the triangles are similar, the ratios of similar sides must be equal.

30/54 = 45/ y

We can use cross products

45*54 = 30*y

2430=30y

Divide each side by 30

2430/30 = 30y/30

81 =y

5 0

3 years ago

A rectangular prism has a surface area of 400 cm 2. If it is 10 cm long and 10 cm wide, what is its height? 4 cm 5 cm 8 cm 40 cm

Snowcat [4.5K]

by the way it looks , would be 40 cm

5 0

4 years ago

What is the quotient of 2/3 / 2/9

gogolik [260]

Answer:

Step-by-step explanation:

$\frac{2}{3}$ / $\frac{2}{9}$ =

$\frac{2}{3}$ * $\frac{9}{2}$ =

Hope this helped! <3

4 0

3 years ago

Maria has 39 books in her library she bought several books at a yard sale over the weekend she now has 70 books in her library h

klio [65]

So 39 books and it must equal 70. So 39 + ___ = 70 or, to make it a bit simpler, 70 - 39 = ___. You should be able to do that.

5 0

4 years ago

Read 2 more answers

A certain ferry moves up and down a river between Town A and B. It takes the ferry two hours to travel to Town A and only an hou

Y_Kistochka [10]

Answer:

The distance between two cities is 60 miles.

Step-by-step explanation:

Time taken to travel from B to A = 2 hours

Time taken to travel from A to B = 1.5 hours

Current speed = 5 mph

Let the speed of ferry in still water = u mph

When the ferry moves with the current, it will taken lesser time (i.e. A to B) and when it moves against the current it will take more time (i.e. B to A).

Let the distance between the two cities A and B = D miles

While moving with the current, speed = $(u+5)\ mph$

While moving against the current, speed = $(u-5)\ mph$

Formula for Distance = Speed $\times$ Time

Distance traveled in each case is same i.e. D.

So,

$D = (u+5) \times 1.5 = (u-5) \times 2\\\Rightarrow 1.5u+7.5=2u-10\\\Rightarrow 0.5u =17.5\\\Rightarrow u = \dfrac{175}{5}\\\Rightarrow u = 35 \ mph$

Now,

$D = (u+5) \times 1.5\\\Rightarrow D =(35+5) \times 1.5\\\Rightarrow D =(40) \times 1.5\\\Rightarrow \bold{D =60\ miles}$

So, the distance between two cities is 60 miles.

6 0

3 years ago