12 red counters
7 more red counters than yellow counters
12 - 7 = 5 yellow counters
Dara has 5 yellow counters.
Answer:
x=2.66
Step-by-step explanation:
6x=60-10y-8z
x=(60-10*2-8*3)÷6
x=(60-20-24)/6=16/6=2.66
Answer:
52.5 cm^2
Step-by-step explanation:
The base length of the triangle on top is ...
8 cm - 1 cm - 2 cm = 5 cm
Then the area of that triangle is given by the formula ...
A = (1/2)bh = (1/2)(5 cm)(5 cm) = 12.5 cm^2
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The area of the rectangle below that triangle is the product of its length and width:
A = (8 cm)(5 cm) = 40 cm^2
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The total area is the sum of the areas of the rectangle and triangle, so is ...
total area = 40 cm^2 + 12.5 cm^2 = 52.5 cm^2
Answer:
18 , 20 , 22 and 24.
Step-by-step explanation:
Let the numbers be n , n + 2, n + 4 and n + 6.
So we have the following equation:
n + 3(n + 6) = 48 + n + 2 + n + 4
n + 3n + 18 = 48 + 2n + 6
4n + 18 = 2n + 54
2n = 36
n = 18
So the numbers are 18 , 20 , 22 and 24.
Answer:
1- D 2-A
number one: you multiply all the numbers together...
number two: you add the numbers together and i got A because if you add it all up, it is 42.593 and that is greater than 42.537.
hope dis helps! :p
