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3 years ago

In a school, the ratio of boys to girls is 4:3. There are 216 boys. How many girls are there?

Mathematics

1 answer:

tankabanditka [31]3 years ago

5 0

Answer:

162

Step-by-step explanation:

Divide 216 by 4

Then multiply 3 times

That's the answer

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Please help me:) thanks

nika2105 [10]

Answer:

B. Side a is 7 inches long and side b is 6 inches long.

Step-by-step explanation:

Since the scale drawing is three times bigger than the actual object, divide both numbers by three to find the object size.

Side a:

21/3 = 7 inches

Side b:

18/3 = 6 inches

6 0

3 years ago

Read 2 more answers

What equation matches this situation.mai biked x miles han biked 2/3 more than that

Olin [163]

Answer:

i need more information like how much mai biked

Step-by-step explanation:

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3 years ago

4/5=/20 math...........

Mumz [18]

Answer:

1.) 16/20

2.) 15/35

3.) 12/9

4.) 52/60

5.) 9 inches

6.) 24 centimeters

7.) 16 logs

8.) $15.40

9.) 10 miles

10.) 1.5 inches

I hope this is good enough:

7 0

3 years ago

Find the equation of the locus of a point that moves so that its distance from the line 12x-5y-1=0 is always 1 unit.

leonid [27]

Answer-

The equations of the locus of a point that moves so that its distance from the line 12x-5y-1=0 is always 1 unit are

$12x-5y+14=0 \\ 12x-5y-14=0$

Solution-

Let a point which is 1 unit away from the line 12x-5y-1=0 is (h, k)

The applying the distance formula,

$\Rightarrow \left | \frac{12h-5k-1}{\sqrt{12^2+5^2}} \right |=1$

$\Rightarrow \left | \frac{12h-5k-1}{\sqrt{169}} \right |=1$

$\Rightarrow \left | \frac{12h-5k-1}{13} \right |=1$

$\Rightarrow 12h-5k-1=\pm 13$

$\Rightarrow 12h-5k=\pm 14$

$\Rightarrow 12h-5k=14,\ 12h-5k=-14$

$\Rightarrow 12h-5k-14=0,\ 12h-5k+14=0$

$\Rightarrow 12x-5y-14=0,\ 12x-5y+14=0$

Two equations are formed because one will be upper from the the given line and other will be below it.

4 0

3 years ago

F(x) =6x-1 The equation represents Function a and the graph represents b

MAVERICK [17]

Answer:

Step-by-step explanation: ok

8 0

3 years ago