Answer:
-1.3 and 1.55
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
4! +3! /2
4!=4*3*2*1=24
3!=3*2*1=6
24+6/2=30/2=15
There were 27 rolls in each box because (9x12)/4= 27
Answer:
x=2 y=-1
Step-by-step explanation:
multiply the top equation by negative 2. then it is -7=-14
then you dive and find out that x=2 and plug it inot the equation and solve for x 10+?=9 which is -1
Answer:
side - equation - measurement
1st side - 2s - 65 - 55cm
2nd side - s - 60cm
3rd side - s - 10 - 50cm
Step-by-step explanation:
total = 165
side - s
1st side = 2s - 65
2nd side = s
3rd side = s - 10
1st side + second side + 3rd side = 165
2s - 65 + s + s - 10 = 165
2s + s + s - 65 - 10 = 165
4s - 75 = 165
4s = 165+ 75
4s = 240
<u>s = 60</u>
<em>1st side = 2s - 65</em>
<em> = 2(60) - 65</em>
<em> = 120 - 65</em>
<em> </em><u><em>= 55cm</em></u>
<em>2nd side = s</em>
<em> =</em><u><em> 60cm</em></u>
<em>3rd side = s - 10</em>
<em> = 60 - 10</em>
<em> = </em><u><em>50cm</em></u>
3rd side is represented by<u> s - 10</u> as it is less than the second side by 10cm hence taking away the 10 from the side forming the equation <u>s - 10</u>
<u><em /></u>