Answer:
Longest side = 13 inches
Step-by-step explanation:
Perimeter of triangle = 30 inches
x + 4x - 8 + 2x +3 = 30
x + 4x + 2x - 8 + 3 = 30
7x - 5 = 30
7x = 30 + 5
7x = 35
x = 35/7
x = 5
Longest side is the hypotenuse.
Longest side = 2x + 3 = 2*5 + 3 = 10 + 3 = 13 inches
Answer:
16
Step-by-step explanation:
v=lwh
v=4x2x2
Answer:
(a)
Given expression: 49% of 162
we can write 49% as
then;
Therefore, the estimate of the given expression is, 79.38.
(b)
Using mental math to calculate 49% of 162.
Mental math is used as a way to calculate an estimate quickly.
We can write 49% = 50% -1%
(50%-1%) of 162 = 50% of 162 -1% of 162
so,
50% of 162 =
and
1% of 162 =
Now, subtract these we get;
81 - 1.62 = 79.38
Therefore, by using mental math 49% of 162 is, 79.38
Answer:
68 cm²
Step-by-step explanation:
I don't see what you mean for each figure but here goes nothing!
We can split the figure in 2 rectangles
We find the first rectangle by doing 4 x 12 = 48 cm²
The second rectangle would be 5 x 4 = 20 cm²
Therfore we add them up into 20 + 48 = 68 cm²
Hope This Helps!
Will Smith paid $857.19 for the 60 inch TV.
Step-by-step explanation:
Step 1:
The 60 inch TV sells for $1,250. The electronics store offers a discount of 35%.
So the price that is paid for the TV is reduced by 35%.
We need to determine how much 35% of $1,250 is.
35% of $1,250
So a discount of $437.50 is applied to the original price.
The discounted price
The discounted price of the TV is $812.50.
Step 2:
A sales tax rate of 5.5% is applied where Will Smith lives.
We need to determine how much 5.5% of $812.50 is.
5.5% of $812.50
So a sales tax of $44.6875 is applied to the original price.
The total price
Rounding this off, Will Smith paid $857.19 for the 60 inch TV.