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2 years ago

What is the product of 2 1/8 and 4 1/3 ? who ever answer correct will be marked brainlest

Mathematics

1 answer:

makkiz [27]2 years ago

8 0

Answer:

9 5/24

Step-by-step explanation:

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No solution.

2y-x=6 =y=1/2x+3
Since 1/2x does not equal 1/2x+3, this is a false statement and therefore has no solution

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2 years ago

What is the solution of the proportion 13/y = 3/8?

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Write into an algebraic expression. Double the sum of 2 and x increased by one-half x squared.

fenix001 [56]

2(2 + (x + 1/2x^2))

The brackets are important in this question.

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2 years ago

A lion runs 50 mph and a cheetah runs 74 mph. How far does the cheetah run in the time it takes the lion to run 75 miles? pls sh

Luba_88 [7]

Answer: 111 miles per hour. Or 125 miles per hour.

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2 years ago

A pebble is dropped into a deep well and 3s later the sound of a splash is heard as the pebble reaches the bottom of the well. T

ankoles [38]

Answer:

$2.89\ \text{s}$

0.11 seconds

$37.4\ \text{m}$

Step-by-step explanation:

$t_1$ = Time taken by the pebble to hit the water

$t_2$ = Time taken by the sound to travel to the observer

$t_1+t_2$ = Time taken by the observer to listen to the splash after stone is thrown = 3 s

$t_1=3-t_2$

a = g = Acceleration due to gravity = $9.81\ \text{m/s}^2$

$u_s$ = Speed of sound = 340 m/s

The distance traveled by the pebble

$s=ut+\dfrac{1}{2}at_1^2\\\Rightarrow s=0+\dfrac{1}{2}\times9.81(3-t_2)^2\\\Rightarrow s=4.905(9+t_2^2-6t_2^2)$

Distance traveled by the sound

$s=u_st\\\Rightarrow s=340\times t_2$

The distance traveled by the sound and the pebble is equal

$4.905(9+t_2^2-6t_2)=340\times t_2\\\Rightarrow 9+t_2^2-6t_2=\dfrac{340}{4.905}t_2\\\Rightarrow 9+t_2^2-6t_2=69.32t_2\\\Rightarrow t_2^2-75.32t_2+9=0\\\Rightarrow t_2=\frac{-\left(-75.32\right)\pm \sqrt{\left(-75.32\right)^2-4\times \:1\times \:9}}{2\times \:1}\\\Rightarrow t_2=75.2,0.11$

Since $t_1+t_2=3$ the value of $t_2$ cannot be greater than 3.

So, time taken by the sound to reach the observer is 0.11 seconds.

Time taken by the pebble to hit the water is $t_1=3-t_2=3-0.11=2.89\ \text{s}$

Depth of the well is $s=340t_2=340\times 0.11=37.4\ \text{m}$

8 0

2 years ago

What is the product of 2 1/8 and 4 1/3 ? who ever answer correct will be marked brainlest​

What is the product of 2 1/8 and 4 1/3 ? who ever answer correct will be marked brainlest