3 years ago

So can someone help pleaseeee

Mathematics

2 answers:

Marat540 [252]3 years ago

6 0

X=4. Hope this is the one you wanted me to answer.

laila [671]3 years ago

5 0

The answer is 7, you set the equations equal to one another and solve

You might be interested in

There are 15 cars in zack's toy collection 2/3 of the cars are red how many red cars does zack have?

Vadim26 [7]

Answer:

10 cars

Step-by-step explanation:

15 cars x $\frac{2}{3}$ = $\frac{30}{3}$ = 10 cars

8 0

3 years ago

A plane flies 450 miles with the wind, and 350 miles against the wind (in the same amount of time). If the wind is blowing at 30

adell [148]

Answer: = 240 mph.

Step-by-step explanation:

Let x = speed of the plane.

t= time taken

As per given, we have

$t=\dfrac{450}{x+30}\ \ \ ...(i)\\\\ t=\dfrac{350}{x-30}\ \ \ ...(ii)$ [Time = distance / speed]

From (i) and (ii), we get

$\dfrac{450}{x+30}=\dfrac{350}{x-30}\\\\\Rightarrow\ 450(x-30)=350(x+30)\\\\\Rightarrow\ 450x-13500=350x+10500\\\\\Rightarrow\ 450x-350x=10500+13500\\\\\Rightarrow\ 100x=24000\\\\\Rightarrow\ x=240$

Hence, the speed of the plane = 240 mph.

7 0

3 years ago

2/10 = 20%= 0.2<br> True or false

Shalnov [3]

Answer:

True

Step-by-step explanation:

8 0

2 years ago

ERROR ANALYSIS

Dennis_Churaev [7]

Answer:

I agree with cristafers work

Step-by-step explanation:

3 0

3 years ago

How much will $5000 be worth in 5 years if it is compounded continuously at 3% interest.

mash [69]

Answer:

The final balance is $5,796.37.

The total compound interest is $796.37.

Step-by-step explanation:

3 0

3 years ago