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3 years ago

How do you solve ×=12+4y

Mathematics

2 answers:

melomori [17]3 years ago

7 0

Make y the subject
x-12=4y then divide all sides by 4
x\4-3=y

vichka [17]3 years ago

4 0

First off, you need to leave the y by itself.
x=12+4y (put the twelve one the other side, by subtracting it)
x-12=4y (divide by 4)
1/4x-3=y -> y=1/4x-3 done!

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One minute after take off, an airplane altitude was 4,000 feet. Three minutes later , it was 20,000 feet what was the planes ave

Temka [501]

Answer:

The average altitude change of plane with time is 8,000 feet per min .

Step-by-step explanation:

Given as :

The initial height of plane after 1 min take off = 4,000 feet

The final height of plane after 3 min later = 20,000 feet

Let The rate of change of altitude in feet per min = s feet per min

Now, According to question

The change in altitude = final altitude - initial altitude

Or, D = 20,000 feet - 4,000 feet

I.e Distance change = 16,000 feet

The change in time = final time - initial time

Or T = 3 min - 1 min

I.e Time change = 2 min

Speed = $\dfrac{\textrm Distance}{\textrm Time}$

So, s = $\frac{16,000}{2}$ feet per min

∴ s = 8,000 feet per min

So, Rate of change of altitude with respect to time = s = 8,000 feet per min

Hence The average altitude change of plane with time is 8,000 feet per min . Answer

5 0

3 years ago

What’s two plus three

Alex73 [517]

Answer:

Two plus three is five.

Hope this helps!

4 0

3 years ago

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kow [346]

Answer:

Step-by-step explanation:

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3 years ago

please tell me how does 20 times 30 equal 90 please tell me so i can tell my teacher about iready so i dont have to do it

Alja [10]

Answer:

20*30=600

This could be written out with addition instead, as 20 'times' 30

30+30+30+30+30+30+30+30+30+30+30+30+30+30+30+30+30+30+30+30

=600

7 0

3 years ago

Find the area of the triangle A) B) 09 11 ft2 D) 224²

Romashka-Z-Leto [24]

Answer:

Step-by-step explanation:

Area of a triangle = $\frac{bh}{2}$

where b = base length and h = height

the triangle shown has a base length of 2 and 1/2 and a height 4. and 2/5

So area =

$\frac{2\frac{1}{2} *4\frac{2}{5} }{2} \\\\2\frac{1}{2} *4\frac{2}{5} =11\\\\\frac{11}{2} =5.5$

5.5 also = $5\frac{1}{2}$

Hence, the correct answer is A

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3 years ago