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Ad libitum [116K]
3 years ago
7

Helppdjsj please! :(

Mathematics
1 answer:
faltersainse [42]3 years ago
3 0

ANSWER

0.12

EXPLAINATION:

turn 4 into a fraction ( 4/1 )

divide 12/25

since you cant divide fractions, you use KCF (keep change flip)

keep 12/25 changed division to multlication and flip 4/1 to 1/4

now multiply 12/25 x 1/4

Your answer is 0.12

Hope this helps!!

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An airplane is flying at 35,000 feet above sea level airplane started to send a rate of 2500 ft./min. after five minutes how man
vitfil [10]

Answer:

22,500 feet

Step-by-step explanation:

Initial Height of the airplane = 35000 feet

Rate of descend = 2500 ft/min

This means for every minute the height of the plane is decreasing by 2500 feet.

We have to find how high above the sea level is the airplane after 5 minutes.

Since, in one minute the distance of plane is decreasing by 2500 feet, in 5 minutes the decrease in its distance would be = 2500 x 5 = 12,500 feet

Thus, after 5 minutes the height of airplane would have decreased by 12,500 feet. Since, the initial height of airplane was 35,000 feet, the new height after 5 minutes would be:

Height after 5 minutes = 35000 - 125000 = 22,500 feet

After 5 minutes, airplane is 22,500 feet above the sea level

6 0
3 years ago
Please help me I don’t understand how to do it. If you can please use a data table to explain how to do it.
Ksivusya [100]

Answer:

The 70% mixture makes up 0.7 liters of the solution whereas the 60% mixture makes up 2.8 liters of the solution.

Step-by-step explanation:

Let us have x liters of the .7 mixture and y liters of the .6 mixture.

We want total liters to be 3.5 which means we need x+y=3.5 . I don't like the decimal in the equation so I'm going to multiply both sides by 10: 10x+10y=35

We also need the .7x+.6y=.62(3.5) . I hate the decimal business going on in this question so I'm going to multiply by 1000 which gives 700x+600y=62(35) .

So we have the system

700x+600y=62(35)

10x+10y=35

I'm going to setup this up for linear combination/elimination.

Multiply bottom equation by 60.

700x+600y=62(35)

600x+600y=60(35)

Subtract equations (bottom from top):

(700-600)x+(600-600)y=35(62-60)

Simplify:

100x+0y=35(2)

100x=70

Divide both sides by 100:

x=70/100

x=7/10

Going back to x+y=3.5 along with x=7/10 or .7 liters to find y.

y=3.5-x with x=.7

y=3.5-0.7

y=2.8

The 70% mixture makes up 0.7 liters of the solution whereas the 60% mixture makes up 2.8 liters of the solution.

Pic added.

Another way to do problem:

.7x+.6(3.5-x)=.62(3.5)

Multiply and distribute:

.7x+2.1-.6x=2.17

Combine like terms on left:

.1x+2.1=2.17

Subtract 2.1 on both sides:

.1x=.07

Multiply both sides by 10:

x=0.7 liters

Now the other acid solution is 3.5-0.7 which is 2.8 litera.

4 0
3 years ago
What is the fully factored form of 32a3 + 12a2? 4a2(8a + 3) 4a(8a2 + 3a) 12a2(3a + 1) 12a(3a2 + a)
ad-work [718]

Answer:

4a^2 (8a+3)

Step-by-step explanation: it’s right

5 0
3 years ago
Read 2 more answers
Suppose that the population of deer in a state is 1,500 and is growing 2% each year. Predict the population after 4 years. Quest
MaRussiya [10]
(1.02(1.02(1.02(1.02(1500))))) = 1623.64

1623 deer after 4 years
7 0
3 years ago
Determine if triangle XYZ with coordinates x (1, 1), y (5,6) and z (6,2) is a right triangle
Soloha48 [4]

Answer:

No(im not totally sure though because its slanted.)

Step-by-step explanation:

desmos.

8 0
3 years ago
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