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3 years ago

ANSWER FAST PLEASE Which is a reasonable first step that can be used to solve the equation 4x+3(x+2)=5(2x-3)

Mathematics

1 answer:

s344n2d4d5 [400]3 years ago

7 0

Distribute 3 to x + 2 and distribute 5 to 2x - 3

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What’s 53/3 simplified

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Answer:

<em>53/3 simplified is 17 2/3</em>

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If a jet flies at a speed of 600 km/h, how many meters does it fly in 10 seconds? There are 1000 meters in 1 km.

nydimaria [60]

it flies 1666.67 meters in 10 seconds.
Speed = 600km/h
1km = 1000m
1hour = 3600 sec
convert speed in km/h to m/s
600 x 1000/3600 = 6000/36 = 166.667 m/s
Now this speed is for per sec, in 10 sec = 166.667 x 10 = 1666.67m

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3 years ago

6 divided by 2 (1 plus 2) = ?

notsponge [240]

6÷2(1+2) = 6÷2*(1+2) = 6÷2*3 = 3*3 = 9.

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3 years ago

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poizon [28]

Answer:

Step-by-step explanation:

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3 years ago

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Rita is selecting a sandwich at the deli. The deli has four types of meat, three types of cheese and two types of bread. A delux

zalisa [80]

Answer:

24 possible dishes

Step-by-step explanation:

Given

Total

$Meat = 4$

$Cheese = 3$

$Bread = 2$

Selection

$Meat = 1$

$Cheese =2$

$Bread = 1$

Required

Determine the number of possible combo

Rita wants to select 1 of 4 meat types,

So, the number of selections is: $^4C_1$

Rita wants to select 2 of 3 cheese types,

So, the number of selections is: $^3C_2$

Rita wants to select 1 of 2 cheese types,

So, the number of selections is: $^2C_1$

The total number of selections is:

$Total = ^4C_1 * ^3C_2 * ^2C_1$

Using

$^nC_r = \frac{n!}{(n-r)!r!}$

We have:

$Total = \frac{4!}{(4-1)!1!} * \frac{3!}{(3-2)!2!} * \frac{2!}{(2-1)!1!}$

$Total = \frac{4!}{3!1!} * \frac{3!}{1!2!} * \frac{2!}{(1!1!}$

$Total = \frac{4*3!}{3!*1} * \frac{3*2!}{1*2!} * \frac{2*1}{1*1}$

$Total = 4* 3 * 2$

$Total = 24$

<em>Hence, there are 24 possible dishes</em>

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3 years ago

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