KitSoundwave

Here's an answer without computer programming. 

first, find the prime factorization of 350. (2*5^2*7)

then we need to find all multiples of 7 that are between 1 and 350. 

Solution 1: Count.

7 14 21 28 35 42 49 56 63 70 77 84 91 98 105 112 119 126 133 140 147 154 161 168 175 182 189 196 203 210 217 224 231 238 245 252 259 266 273 280 287 294 301 308 315 322 329 336 343 350

There. Now we count the numbers. After counting, you see that there are 50. 

Solution 2: Find what is the first multiple of 7/350. 

The first multiple of 7 between 1 and 350 is 7. so 7/350=0.02. 

Then, drop the two zeros and find out what is 100% (1 whole, ignoring the percent) /2. 

Then, we get 50. 

Also, @Guest is wrong. 

@Guest: yeah. Also, your answer 1, 2, 3 is correct. Are there any more? 

1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25=325 so n=25

just use fractional exponents and then bash :P

sniiiipeeedddddddddddd

if you want steps: 

break the expression into groups and then just factor out x in the first part into x(x-3) and then factor the seond part into 16(x-3)

now, rewrite it as x(x-3)=16(x-3)

then, find the lcm (or is it gcf) x-3 and factor that out

finally, we get (x-3)(x+16) which is a binomial, so the answer is reasonable

Good answer, but what about the negative numbers? I think you're missing some positive numbers as well. 

There are great answers here: https://web2.0calc.com/questions/please-help-math-question-please-answer-asap

umm there are no options. 

but let x be the number of people who like pizza and let y be the number of people who don't like pizza and z is the total number of students in the class. 

The equation is x+y=z

from what I can see here, x=6 and y=3 (or it can be the other way around.)

substitute x and y in the given equation

6^3+3^3 can be simplified to 216+27 which is 243

if you need working, here it is

100%-20%=80%

let's forget the zero for now and do 16/8=2

so 10%=2 students

20% is double 10% so we need to find what is double of 2. 

2*2=4 so 4 girls have blonde hair

16+4=20 total students