If 1330 mattresses were sold and 30% were king size how many king size were sold

399 mattresses

Step-by-step explanation:

Total number of mattresses sold : 1330

Percentage of King size mattresses sold = 30%

Number of King size mattresses = ?

This can be calculated as

30% of 1330 = Number of King size mattresses

( 30 × 100) × 1330

= 399 mattresses.

The Number of King size mattresses sold = 399 mattresses

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

the correct answer is 1: 2

step-by-step explanation:

hope this your welcome : )