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3 years ago

Plz help, thank you if you do. Mathematics

Mathematics

1 answer:

xxMikexx [17]3 years ago

6 0

Answer:

600

Step-by-step explanation:

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John has $190 in his savings account. He earns 10% in interest per year.

GuDViN [60]

Answer:

1,900

Step-by-step explanation:

4 0

3 years ago

an airplane flies 3300 miles with the wind in 3 hours 18 minutes. it takes 4 hours and 24 mins to make the return flight against

romanna [79]

Answer:

The speed of aeroplane =875 miles/hr and the speed of wind =125 miles/hr.

Step-by-step explanation:

Let’s assume the speed of the plane =x miles/hr

And let the speed of wind =y miles/hr

So, the speed of the aeroplane in the direction of wind =(x+y) miles/hr

Speed of the aeroplane in the opposite direction of wind =(x–y) miles/hr

We know that, distance=speed×time

Then according to the given conditions, we have

3300=(x+y)×(3+(18/60))

here convert 18mins to hour by dividing by 60 and add to 3hrs.

⇒x+y= 3300/3.3

⇒x+y=1000 … (i)

And,

3300=(x-y)×(4+(24/60))

here convert 24mins to hour by dividing by 60 and add to 4hrs.

⇒x-y= 3300/4.4

⇒x-y=750 … (ii)

Adding equation (i) and (ii), we get

2x=1750

⇒x= 1750/2

=875

Substituting the value of x in equation (ii), we get

875−y=750

⇒y=875-750

⇒y=125

Therefore, the speed of aeroplane =875 miles/hr and the speed of wind =125 miles/hr.

3 0

2 years ago

You dont have to do all but I really just need help but if you do I will give brainiest

sashaice [31]

Answer:

11.V=-2

12.X=6

13.A=9

14.X=-4

15.A=-5

16.P=3

17.K=6

18.M=0

Step-by-step explanation:

Subtract the number on each side to get the variable by itself or add depending on if it has a plus or minus on the side with the variable.

Hope this helps!

Please give me a brainist and add me also make me stars go up. :)

5 0

3 years ago

Read 2 more answers

Find the midrange for the group of data items.<br> 2, 2, 5, 5, 8, 8, 10

elena55 [62]

Answer:

Step-by-step explanation:

Answer:5

Start striking off the numbers one from the left and then from the right continuously until you're left with a number in the middle

3 0

3 years ago

· The volume of Olivia's rectangular lunchbox is 240 cubic inches. The lunchbox has a height of 3 inches, and its length is 2 in

miskamm [114]

The volume of a cuboid is = length × width × height.

Let the width of Olivia's lunch box be 'x'.

Hence the length of Olivia's lunch box shall be 'x + 2'

Also the height of the box is given as 3 inches.

The volume of the box is 240 in³

Substituting in the formula we get

$x(x+2)(3) =240$

Dividing by 3 on both sides

$x(x+2)=80$

Exapnding we get

$x^2+2x=80$

Subtracting 80 from both sides

$x^2+2x-80=0$

Factoring

$(x+10)(x-8)=0$

We get

x= -10 or x = 8

But x cannot be negative

So x = 8

Hence the width of the box is 8 inches.

7 0

4 years ago

Read 2 more answers