Answer:
Length:28 cm
Width: 13 cm
Step-by-step explanation:
Let
x ---> the length of a rectangle picture frame
y ---> the width of a rectangle picture frame
we know that
The area of a rectangle picture frame is equal to
we have
so
----> equation A
The length of a rectangle picture frame is 2 centimeters more than twice it’s width
so
---> equation B
Solve the system by graphing
Remember that the solution is the intersection point both graphs
The solution is the point (28,13)
see the attached figure
therefore
Length:28 cm
Width: 13 cm
To multiply two (numbers to powers) . . . If the bases are the same,
then just keep the same base and add the powers.
To solve this problem, you just need to be able to add ' 5 ' and ' -2 '.
The answer is 'x' to that power.
Answer: 0.88
============================================
Work Shown:
sine is the ratio of the opposite over hypotenuse
sin(angle) = opposite/hypotenuse
sin(I) = GH/IG
sin(I) = 15/17
sin(I) = 0.88235 approximately
sin(I) = 0.88
Answer:
I attached the completed table below.
Step-by-step explanation:
In the second column, you see that the number of people is 3 times as much as the number of people in the first column, so you can multiply all the ingredient amounts by 3.
In the third column, you see that there is twice as much beef as in the original recipe, so that means there will be twice as many people and twice as much for all the ingredients.
Answer:
12.5%
Step-by-step explanation:
Kristopher has a coupon for $10 off any item at his favorite electronics shop. If he plans to use the coupon to purchase and item that costs $80, by what percentage will the price be decreased before tax?
The formula for Percentage Decrease =
Decrease in price/ Initial price × 100
Decrease in price = $10
Initial price = $80
Hence:
$10/$80 × 100
= 12.5%
Hence, the percentage the price will be decreased by before tax is 12.5%
