3.0×10³ - 0.20×10³ = 2.8×10³
Answer:
40°
Step-by-step explanation:
We can find the tangent of ∠J using the trigonometrical ratios which may be expressed in the form SOA CAH TOA Where,
SOA stands for
Sin Ф = opposite side/hypotenuses side
Cosine Ф = adjacent side/hypotenuses side
Tangent Ф = opposite side/adjacent side
The hypotenuse is the side facing the right angle while the opposite is the side facing the given angle.
Considering triangle ΔJKL, where ∠L=90°, JK = 7.3 feet, and KL = 4.7 feet
As such, with respect to angle J, JK is the hypotenuse, KL is the opposite side
Hence
Sin J = 4.7/7.3
Sin J = 0.643835616
J = 40.08°
3/8to 40=40÷8•3=15 this is girls
40-15=25 this is boys
880÷40=22lollipops
15•22=330
30•22=660
880-660=220
Answer: 28%
Step-by-step explanation:
23.04 - 18 = 5.04
5.04 is 28% of 18
Answer:
$450 is the original price
Step-by-step explanation:
We can create a proportion to find the sale on the original price. A proportion is an equation where two ratios are set equal to each other. We create two fractions using the prices and percents. It is marked down by 30% so we pay 70% of the original. The sale price is $315.
![\frac{70}{100} =\frac{315}{x}](https://tex.z-dn.net/?f=%5Cfrac%7B70%7D%7B100%7D%20%3D%5Cfrac%7B315%7D%7Bx%7D)
We begin solving by cross multiplying numerator to denominator of each fraction.
![70(x)=100(315)\\70x=31500\\\frac{70x}{70}=\frac{31500}{70} \\450=x](https://tex.z-dn.net/?f=70%28x%29%3D100%28315%29%5C%5C70x%3D31500%5C%5C%5Cfrac%7B70x%7D%7B70%7D%3D%5Cfrac%7B31500%7D%7B70%7D%20%20%5C%5C450%3Dx)