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3 years ago

Please answer all the questions

Mathematics

1 answer:

erik [133]3 years ago

5 0

Answer:

to find the volume multiply length times width times height.

Step-by-step explanation:

1.)9x16x3= 432

2.)15x12x17= 3,060

3.)7x6x10= 420

4.)19x17x13= 4,199

5.)1,232

6.) 864

7.) 1,260

8.) 384

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The volume of a 10 ounce box of cheerios is 258.75in3. the length of the box is 4 inches less than the height and the width is 3

Marina86 [1]

Answer:

Height of the box = 11.5 in

Step-by-step explanation:

Let h be the height of the box.

Assuming the volume of the Box is $258.75\ in^3$ .

Given:

Length = Height - 4 = h - 4

Width = 3 in

We need to find the height of the box.

Solution:

We know that the volume of the box.

$Volume = Length\times height\times width$

Substitute all given value in above formula.

$258.75 = (h-4)\times h\times 3$

Rewrite the equation as:

$258.75 = 3h(h-4)$

$258.75 = 3h^2-12h$

$3h^2-12h-258.75=0$

whole equation divided by 3.

$h^2-4h-86.25=0$

Use quadratic formula with $a = 1, b = -4,c=-86.25$

$h=\frac{-b\pm \sqrt{(b)^{2}-4ac}}{2a}$

Put these a, b and c value in above equation.

$h=\frac{-(-4)\pm \sqrt{(-4)^{2}-4(1)(-86.25)}}{2(1)}$

$h=\frac{4\pm \sqrt{16+345}}{2}$

$h=\frac{4\pm \sqrt{361}}{2}$

$h=\frac{4\pm 19}{2}$

For positive sign

$h=\frac{23}{2}$

h = 11.5 in

For negative sign

$h=\frac{-15}{2}$

h = -7.5

We take positive value of h.

Therefore, the height of the box h = 11.5 in

4 0

3 years ago

in a pottery class, a teacher has 2/3 pound of clay for 6 students. If she gives each student a equal amount of clay, how much w

Jlenok [28]

She will give 1/9 pound of clay to each student

8 0

3 years ago

Read 2 more answers

3(x+1) + 1 + 2x = 2(2x + 2) + x

WARRIOR [948]

0 = 0
The input is an identity: it is true for all values

3 0

3 years ago

Look at the graph shown below:

skelet666 [1.2K]

Answer:

Step-by-step explanation:

y=3/4x+4 best represents the line shown below. Because the slope of this graph is 3/4, and the y-intercept is positive 4. Remember that slope=rise/run. You can find the slope very easily by counting, 3 upwards and 4 rightwards.

3 0

3 years ago

Chris went on a bike ride of 24 miles. He realized that if he had gone 8 mph faster, he would have arrived 4 hours sooner. How f

UkoKoshka [18]

Total miles= rate x time

We can set up 2 eq:
24=(x+8)(y-4)
24=xy

Where x is equal to my original rate
and y is equal to the original time spent traveling the 2mi

We can now solve for one of the variables and find our rate

3 0

3 years ago