作业帮if 3 more than x is 2 less than 9 ,what is the value of x if 4 bags of flour with an average (arithmetic mean)weight of 15pounds are put onto a shelf with 45-pound bags of flour ,what is the average weight ,in pounds of all 8 bags on the shelf a cert
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if 3 more than x is 2 less than 9 ,what is the value of x if 4 bags of flour with an average (arithmetic mean)weight of 15pounds are put onto a shelf with 45-pound bags of flour ,what is the average weight ,in pounds of all 8 bags on the shelf a cert
if 3 more than x is 2 less than 9 ,what is the value of x
if 4 bags of flour with an average (arithmetic mean)weight of 15pounds are put onto a shelf with 45-pound bags of flour ,what is the average weight ,in pounds of all 8 bags on the shelf
a certain ice-cream parlor offers 6 different toppings for sundaes .how many combinations of 2 different toppings from those offered are possible
if one of the positive factors of 40 is to be chosen at random ,what is the probability that the chosen factor will not be a multiple of 10
the length of each side of an equilateral triangle will be tripled to create a second triangle .the area of the second triangle will be how many times the area of the original triangle
when the positive ingeter x is divided by 5 ,the remainder is 3 ,what is the remainder when x+19 is divided by 5
if 3 more than x is 2 less than 9 ,what is the value of x if 4 bags of flour with an average (arithmetic mean)weight of 15pounds are put onto a shelf with 45-pound bags of flour ,what is the average weight ,in pounds of all 8 bags on the shelf a cert
1.x+3 = 9-2,x=4
2.（4×15+45）/8= 13.125 pounds
3.组合,C(6,2)=15
4.40的正因子有：1,2,4,5,8,10,20,40
因此,取到10的倍数的概率为3/8
5.9倍,问的是等边三角形边长*3,则面积是原来的多少倍
6.x/5=y+3,
so,x=5y+15
x+19=5y+34=5*(y+6)+4,so the remainder is 4
4
13.125
15
9/10
4
2