Answer: 4 pounds of wooden blocks and 6 pounds of plastic bricks should be used.
Step-by-step explanation:
Let x = Quantity of wooden blocks.
y = Quantity of plastic bricks.
As per given , we ahve
5x+10y=80 (i)
x+y=10 (ii)
Multiply 5 on both sides of (ii), we get
5x+5y=50 (iii)
Eliminate (i) from (iii), we get
5y=30
⇒ y= 6
Put y=6 in (ii), we get
x+6=10
⇒ x= 10-6= 4
Hence, 4 pounds of wooden blocks and 6 pounds of plastic bricks should be used.
Answer:
-1 Degree C
Step-by-step explanation:
When its talking about average temperature, its talking about the mean. To calculate mean, you add all the numbers and divide it by how many numbers are there.
(-8) + (-1) + 2 + 4 + (-2) = -5
mean = -5/5
-1 degree C
Union = {0,1,4,8,10,16}
Intersection = {4,16}
Answer/Step-by-step explanation:
What we already know:
Pizza slices $2.75 - Ice cream cones $2.25 - Tacos $1.75
Total Items sold - 121 / Total amount of money - $260.75/ <u>$87.50 made from selling Tacos</u>
<u>____________________________________</u>
Tacos - 87.5 ÷ 1.75 = 50 Tacos sold -- 121 - 50 = 71 items
& 260.75 - 87.5 = 173.25 left
____________________________________
You can't sell half an Ice-Cream
Ice Cream - 71 - 1 = 70 -- 70 ÷ 2 = 35 -- 35 × 2.25 =
<h3>
$78.75 made from Ice-cream cones</h3><h3>
35 Ice- cream cones sold</h3><h3>
**************************************************</h3>
Pizza slices - 71 - 70 = 1 -- 1 + 35 =
<u>36 Pizza slices sold</u>
36 × 2.75 =
<u>99 dollars made off of Pizza slices</u>
____________________________________
**I dont know if this is correct**
(9 - 7 X 3 + 4 )²
Always follow the rule
BIDMAS
Brackets
Indices
Division
Multiplication
Addition
Subtraction
First look at the Brackets
There are no indices in the brackets
There is no division in the brackets
There is a Multiplication in the brackets 7 x 3
For the answer
(9 - 7 x 3 + 4)²
Brackets
Multiplication 7 x 3 = 21
(9 - 21 + 4)²
Addition -21 + 4 = -17
(9 - 17)²
Subtraction 9 - 17 = -8
-8²
Now start again once the brackets are gone
-8²
Indices
-8 x -8 = 64
