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3 years ago

Guys this is a real problem!!! Will mark brainliest!!

Mathematics

2 answers:

Igoryamba3 years ago

4 0

311(1.50)+.50x=385.50

would be your equation

oee [108]3 years ago

4 0

Answer:

Step-by-step explanation:

Let the student tickets sold = x

Let the non-student tickets = y

x + y = 311

0.5x + 1.5y = 385.5 Multiply the second equation by 2

x + 3y = 771 Subtract2y the first equation

x + y = 311

2y =460

y = 230

x then will equal 311 - 230 = 81

Check

81 * 0.5 = 40.5

230 * 1.5 = 345

Total = 385.5 just as it should

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193 is what percent of 256? Round to the nearest thousandth.

jenyasd209 [6]

Answer:

75.391

Step-by-step explanation:

193x100/256=75.391

3 0

2 years ago

A 12-member jury is to be selected from 15 men and 13 women. Find the probability that this jury has 6 or 7 males.

Bas_tet [7]

Answer:

The right solution is "0.5545".

Step-by-step explanation:

According to the question,

The probability of having 6 or 7 males will be:

= $P(6 \ males)+ P(7 \ males)$

= $\frac{15_C_6\times 13_C_6}{28_C_{12}} + \frac{15_C_7\times 13_C_5}{28_C_{12}}$

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8 0

2 years ago

How to find all real solutions

AlladinOne [14]

$\bf \sqrt{\sqrt{x-5}+x}=5\leftarrow \textit{squaring both sides}
\\\\
\sqrt{x-5}+x=25\implies \sqrt{x-5}=25-x\leftarrow \textit{squaring both sides}
\\\\
x-5=(25-x)^2\implies x-5=625-50x+x^2
\\\\
0=x^2-51x+630\implies 0=(x-30)(x-21)$

and surely you'd know what the roots are

7 0

3 years ago

Can someone help me write the equations and solve, please.

Novay_Z [31]

Answer:

Number 11: She has to add 5/36 of a cup

Number 12: The present costs $22,2

Number 13: 56,7 pounds is the weight of the package.

Number 14: You started with 40 muffins

Step-by-step explanation:

Number 11: 1/4 = 9/36 and 1/9 = 4/36

3*1/4 - 3*1/9 = 3*9/36 - 3*4/36 = 5/36

Number 12: 13,32/x= 3/5 ( or 0,6)

x = 13,32/0,6 = 22,2

Number 13: x * 5/7 = 40,5

x = 40,5/ (5/7) or 40,5 * 7/5 = 283,5/5 = 56,7

Number 14: 12/x = 3/10 (or 0,30)

x= 12/0,30 = 40

6 0

3 years ago

The vertex is (4,y) because ? pls help

gulaghasi [49]

Answer:

Step-by-step explanation:

because I no and nono and y

6 0

2 years ago