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3 years ago

I need help solving this problem

Mathematics

2 answers:

Hitman42 [59]3 years ago

8 0

The answer is 2 (x+2)

ludmilkaskok [199]3 years ago

4 0

The answer is 2(x+2) or 2x+4

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PLS.HELP!!!! Need answer asap

aev [14]

Answer:

4 kilometers per gallon

Step-by-step explanation:

for unit rate you divided distance by in this case

6 0

2 years ago

Um litro de suco é dividido entre três amigos. O primeiro fica com 14 do todo, o segundo fica com 1/3 do total e o terceiro fica

kkurt [141]

Answer:

a) 1/24 do total

Step-by-step explanation:

We have that:

The total is 1.

The first friend gets 1/4 of the total.

The second friend gets 1/3 of the total

The third friend gets 3/8 of the total.

The remaining is x.

$\frac{1}{4} + \frac{1}{3} + \frac{3}{8} + x = 1$

The least common multiple between 4, 3 and 8 is 24. So

$\frac{6 + 8 + 3*3 + 24x}{24} = 1$

$23 + 24x = 24$

$24x = 1$

$x = \frac{1}{24}$

So the correct answer is:

a) 1/24 do total

3 0

4 years ago

What is the solution to this system of linear equations?

Eva8 [605]

8x+y=3
-8x -8x
--------------
y=-8x+3

7x-2y=-6
-7x -7x
------------------
-2y=-7x-6
----- -------
-2 -2
y=7/2x+3

Substitute -8x+3 in place of y
-8x+3=7/2x+3
+8x +8x
-----------———
3= 11.5x+3
-3 -3
———————
0 = 11.5x
—— ——
11.5 11.5

X=0

8x+y=3
8(0)+y=3
0+y=3
y=3

Check
8(0)+3=3
7(0)-2(3)=-6
0-6=-6

Answer is choice B

3 0

4 years ago

Compare using <, >, or =.<br> 4 5/8 _ 4 2/3

viktelen [127]

Answer:

Step-by-step explanation:

4 5/8 is smaller than 4 2/3

7 0

3 years ago

A basketball with a diameter of 9.5 in. is placed in a cubic box with sides 12 in. long. How many cubic inches of packing foam a

elena55 [62]

Answer:

1279.3 cubic inches (Rounded to the nearest tenth)

Step-by-step explanation:

Side of a cubic box = 12 inches

volume of cubic box = $side^3$ (since side is equal to 12 inches)

= $12^3$ = 1,728 cubic inches

It means that box can be filled with 1,728 cubic inches of any material

____________________________________________________

But, it is given that it has one basketball placed in it.

hence we need to find the volume of basketball .

Since basket ball is spherical in shape

formula to calculate its volume will be same as that of formula to calculate volume of sphere

volume of sphere = $(4/3 ) \pi r^3\\$ where r is the radius of sphere

radius of basketball = diameter/2 = 9.5/2 in = 4.75 inches

therefore volume of basket ball is given by

volume of basketball = $(4/3 ) \pi r^3\\\\\\=>(4/3 ) \3.14* 4.75^3\\\\\\= 448.693 \ cubic \ inches$

___________________________________________

In box with volume 1,728 cubic inches,, 448.693 cubic inches is occupied by basketball.

It means rest is empty which can be filled with foam.

To calculate the empty space, we subtract volume of basket ball from volume of box

volume of empty space = volume of box - volume of basket

= 1728 - 448.693 = 1279.307 cubic inches

1279.307 cubic inches in nearest tenth will be 1279.3 cubic inches.

Hence, 1279.3 cubic inches of foam are needed to fill the rest of the box

7 0

4 years ago