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2 years ago

30 POINTS!!!

Mathematics

2 answers:

kotykmax [81]2 years ago

7 0

Answer:

fvbbbbb

Step-by-step explanation:

dimaraw [331]2 years ago

5 0

Answer:

Step-by-step explanation:

The living room itself is 16.5 or 14 1/2 square feet

Each square foot is 1.50 in cost

16.5/1.50 = 11

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Four times the difference of a number and 7 is 32

notka56 [123]

I'm not exactly sure but I think it might be but if you were to do 4(x-7) that would be 15 because fifteen minutes seven equals eight and eight time four is thirty two Hope this helps!

6 0

2 years ago

Are 2x+(3x+4y) and (2x+3x)+4y equivalent

Nady [450]

no because pendas means parentheses multiplication division left to right addition subtraction left to right

4 0

2 years ago

In an international film festival, a penal of 11 judges is formed to judge the best film. At last two films FA and FB were consi

valentina_108 [34]

Answer:

The answer is "0.4329 ".

Step-by-step explanation:

P( three in favor of FA)

Select 3 out of 6 FA supporters then select 2 out of 5 FB supportive judges

$=\frac{^{6}_{C_{3}}\times ^{5}_{C_{2}}}{^{11}_{C_{5}}}\\\\=\frac{\frac{6!}{3!(6-3)!}\times \frac{5!}{2!(5-2)!}}{\frac{11!}{5!(11-5)!}}\\\\=\frac{\frac{6!}{3! \times 3!}\times \frac{5!}{2! \times 3!}}{\frac{11!}{5! \times 6!}}\\\\=\frac{\frac{6 \times 5 \times 4 \times 3!}{3 \times 2 \times 1\times 3!}\times \frac{5 \times 4 \times 3!}{2 \times 1 \times 3!}}{\frac{11 \times10 \times 9 \times 8 \times 7 \times 6! }{5 \times 4 \times 3 \times 2 \times 1 \times 6!}}\\\\$

$=\frac{ (5 \times 4) \times(5 \times 2)}{(11 \times 3 \times 2 \times 7 )}\\\\=\frac{ 20 \times 10 }{(11 \times 42)}\\\\=\frac{ 200 }{462}\\\\=\frac{100 }{231}\\\\=0.4329$

6 0

2 years ago

Five times a number decreased by 18 minus 4 times the same number is -36. what is the number?

kaheart [24]

(5x - 18) - 4x = -36

Let's solve your equation step-by-step.

5x − 18 − 4x = −36

Step 1: Simplify both sides of the equation.

5x − 18 − 4x = −36

5x + −18 + −4x = −36

(5x + −4x) + (−18) = −36 (Combine Like Terms):

x + −18 = −36

x − 18 = −36

Step 2: Add 18 to both sides.

x − 18 + 18 = −36 + 18

x = −18

Answer: ========> x = -18 is the number

Hope that helps!!!! : )

3 0

2 years ago

vincent’s copier can print in 7 hours. chris’s printer can do the same in 13 hours. how long would it take to do the job using b

Viefleur [7K]

Answer:

Step-by-step explanation:

1/7+1/13=1/t

multiply both sides by 7*13*t

13t+7t=7*13

21t=91

t=91/19

it will take 4 hours and 8 minutes

8 0

3 years ago