All categories

3 years ago

The length of a cell phone is

Mathematics

1 answer:

larisa [96]3 years ago

8 0

Answer:

The width of new phone = 5.5 inches

Step-by-step explanation:

Given that:

Length of cell phone = 1.4 inches

Width of cell phone = 4.4 inches

Ratio of length to width = 1.4 : 4.4

Length of new version = 1.75 inches

Width of new version = x

Ratio of length to width = 1.75 : x

As the relation is proportional;

$1.4:4.4 ::1.75:x$

Product of mean = Product of extreme

4.4 * 1.75 = 1.4x

7.7 = 1.4x

1.4x = 7.7

Dividing both sides by 1.4

$\frac{1.4x}{1.4}=\frac{7.7}{1.4}\\x=5.5\\$

Hence,

The width of new phone = 5.5 inches

You might be interested in

Can Someone help me please

melamori03 [73]

Answer:

an equation is 116-2x = 180

the congruent angles each measure 32

Step-by-step explanation:

I'm too tired for an explanation. if it's really necessary, let me know.

goodluck on your schoolwork/homework!

------------------------------------------------------------

sorry for any bad explanations or incorrect answers.

7 0

4 years ago

Y+1 y+8 y+2 y+7

kipiarov [429]

$\dfrac{y+1}{y+2}+\dfrac{y+8}{y+9}=\dfrac{y+2}{y+3}+\dfrac{y+7}{y+8}$

Write all fractions in terms of a common denominator:

$\dfrac{y+1}{y+2}=\dfrac{(y+1)(y+9)(y+3)(y+8)}{(y+2)(y+9)(y+3)(y+8)}$

$\dfrac{y+8}{y+9}=\dfrac{(y+8)^2(y+2)(y+3)}{(y+2)(y+9)(y+3)(y+8)}$

$\dfrac{y+2}{y+3}=\dfrac{(y+2)^2(y+9)(y+8)}{(y+2)(y+9)(y+3)(y+8)}$

$\dfrac{y+7}{y+8}=\dfrac{(y+7)(y+2)(y+9)(y+3)}{(y+2)(y+9)(y+3)(y+8)}$

Then move all fractions to one side and simplify the numerator:

$\dfrac{(y+1)(y+9)(y+3)(y+8)+(y+8)^2(y+2)(y+3)-(y+2)^2(y+9)(y+8)-(y+7)(y+2)(y+9)(y+3)}{(y+2)(y+9)(y+3)(y+8)}=0$

The numerator dictates when the fraction reduces to 0. The denominator can never be 0, so we know that <em>y</em> cannot take any of the values -2, -9, -3, nor -8.

So the equation reduces to

$(y+1)(y+9)(y+3)(y+8)+(y+8)^2(y+2)(y+3)-(y+2)^2(y+9)(y+8)-(y+7)(y+2)(y+9)(y+3)=0$

Expand the left side; you would end up with

$-6(2y+11)=0$

$2y+11=0$

$2y=-11$

$\implies\boxed{y=-\dfrac{11}2}$

8 0

3 years ago

M∠K=(5x+13)°. Find the measure of the complement of ∠K.

algol [13]

Answer:

Option C

Step-by-step explanation:

Sum of two angle in complement = 90

Let the other angle be a

a + 5x + 13 = 90

a = 90 - (5x + 13)

a = 90 - 5x - 13

a = 77 - 5x

3 0

3 years ago

My usual workout consists of running 10 laps around a 400 meter track. If I go to a track that is only 250 meters long, how many

Ghella [55]

Answer:

16 laps

Step-by-step explanation:

400x10=4000

4000÷250=16

3 0

3 years ago

Read 2 more answers

Melissa is standing 40 ft from a tree. The angle of elevation from where she is standing on the ground to the top of the tree is

bagirrra123 [75]

Tan(angle) = opposite length/ adjacent length

Tan(50) = h/40
h = 40 x tan(50)
h = 47.67 or 47.7 feet

3 0

3 years ago

Read 2 more answers