Answer:
x>-2
Step-by-step explanation:
when dividing by a negative number, the inequality sign flips.
Answer:
Weekly mean number of bags used = 9.2 bags
Step-by-step explanation:
Seenal makes 2400 loaves in week 5
Quantity of flour used for 1 loaf = 250 g = 0.25 kg
Quantity of flour used for 2400 loaves = 0.25 * 2400 = 600 kg
Number of 50 kg bags of flour bought in week 5 = 600/50 = 12 bags
Therefore, the summary of the number of bags used in each week is:
Week 1 = 7 bags
Week 2 = 14 bags
Week 3 = 0 bags
Week 4 = 13 bags
Week 5 = 12 bags
Weekly mean number of 50 kg bags of flour used in the 5 weeks = (7+14+0+13+12)/5
Weekly mean number of bags used = 46/5 = 9.2 bags
Answer: they sold 25 at the original price they sold 66 at the reduced price.
Step-by-step explanation:
Let x represent the number of pottery that they sold at the original price.
Let y represent the number of pottery that they sold at the reduced price.
They sold a total of 91 pieces of pottery. This means that
x + y = 91
They sold some of their pottery at the original price of $ 13.50 each, but later decreased the price of each by $3.00. The reduced price would be 13.5 - 3 = $10.5
If they made $1030.5 in total, it means that
13.5x + 10.5y = 1030.5 - - - - - - - - - 1
Substituting x = 91 - y into equation 1, it becomes
13.5(91 - y)+ 10.5y = 1030.5
1228.5 - 13.5y + 10.5y = 1030.5
- 13.5y + 10.5y = 1030.5 - 1228.5
- 3y = - 198
y = - 198/ - 3
y = 66
x = 91 - y = 91 - 66
x = 25
Answer:
1. About 11 months
2. 3.55$ would be left
Step-by-step explanation:
1. 300-140=160
160-25=135
135/11.95=11.297
2. 11.95x11=131.45
131.45+25=156.45
156.45+140=296.45
300-296.45=3.55
Answer:
Luis has 30 cards
Step-by-step explanation:
To solve this problem, we need to setup a system of equations.
If we call the amount of cards Juan has "J", Pedro "P", Maria "M" and Luis "L", we have that:
J + P + M + L = 62
P = J/3
M = J - 3
L = 2J
Substituting P, M and L in the first equation, we have:
J + J/3 + J - 3 + 2J = 62
13J/3 = 62 + 3
13J = 65 * 3
J = 15 cards
The amount of cards Luis has is:
L = 2J = 2 * 15 = 30 cards
