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2 years ago

GIVING BRAINLIEST ONLY IF CORRECT-NO LINKS PLEASE

Mathematics

1 answer:

mariarad [96]2 years ago

5 0

Answer:

Step-by-step explanation:

I just know is the 3 one

dnsjd

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If y varies directly as x and y = 36 when x=9 find the value of y when x=3

Temka [501]

I think the answer is 12

because
y=36, x=9
y=?, x=3
so you divide 36 by 3 to get the other y

Hope this helps

3 0

3 years ago

A manufacturing company builds construction machinery. It sells 10 machines for $18,100 and 20 machines for $26,600. Which equat

love history [14]

Y = mx + b
m = (y2 - y1)/(x2 - x1)

y = (26,600 - 18100)/(20 - 10)x + b
y = 850x + b
18100 = 850(10) + b
b = 9600

R(x) = 850x + 9600

3 0

3 years ago

How many solutions does this equation have?

goblinko [34]

1 answer namely x = 6

6 0

3 years ago

At a competition with 7 runners, medals are awarded for first, second, and

il63 [147K]

Answer:

Option A - Permutation; number of ways = 210

Step-by-step explanation:

Given : At a competition with 7 runners, medals are awarded for first, second, and third places. Each of the 3 medals is different.

To find : How many ways are there to award the medals?

Solution :

There are 7 runners but medals are three.

The first runner up got first medal as one is locked.

The second runner up got second medal as second is locked.

The third runner up got the third medal.

So, There is a permutation.

Number of ways to award the medals is $^7P_3$

We know, $^nP_r=\frac{n!}{(n-r)!}$

Substitute the values,

$^7P_3=\frac{7!}{(7-3)!}$

$^7P_3=\frac{7\times 6\times 5\times 4!}{4!}$

$^7P_3=210$

Therefore, Option A is correct.

Permutation; number of ways = 210

6 0

3 years ago

Find the missing value.-7/13 = m/104

exis [7]

<em> $answer = - 56 \\ solution \\ \frac{ - 7}{13} = \frac{m}{104} \\ or \: 13 \times m = 104 \times ( - 7) \\ or \: 13 \: m = - 728 \\ or \: m = \frac{ - 728}{13} \\ m = - 56 \\ hope \: it \: helps \\ good \: luck \: on \: your \: assignment$ </em>

8 0

3 years ago

Read 2 more answers