Answer:
The true statements are:
The cost of 9 magnets is $3.
The cost of 6 magnets is $2.
The cost of 3 magnets is $1.
Step-by-step explanation:
equivalents ratios are two or more ratios that express the same relationship between the numbers involved. In order to calculate the equivalent ratios that are equal, when the numbers involved are divided, they ought to give the same result. In the answer chosen above the ratios in each case are equivalent because:
if the cost of 9 magnets is $3;
9 magnets = $3
∴ 1 magnet = 3/9 = $ 1/3 = 1:3
if the cost of 6 magnets is $2;
6 magnets = $2
1 magnet = 2/6 = $1/3 = 1:3
if the cost of 3 magnets is $1;
3 magnets = $1
∴ 1 magnet = $ 1/3 = 1:3
From the answers obtained, the equivalent ratio of 1 : 3 is the same in all case.
Answer: The percentage change is 56.67%.
Step-by-step explanation:
From 120 meals to 52 meals, change in meals = ( 120- 52) meals
= 68 meals
The percentage change = 
Hence, the percentage change is 56.67%.
Answer:
Step-by-step explanation:
First, calculate the area of the rectangle.
Here, length = 18 units and Width = 12 units
The formula for calculating the area of the rectangle is 
The radius of the semi-circle is 6 units.
The formula for calculating the area of the semi-circle is 
.
The area of the shaded region is equal to the difference of area of the rectangle and area of the semi-circle.
Answer:
5.5 I use a calculator and I also checked my work
Answer:
x=0.3
Step-by-step explanation:
Let's solve your equation step-by-step.
3.7(−83x−3)=3.7(7x−30)
Step 1: Simplify both sides of the equation.
3.7(−83x−3)=3.7(7x−30)
(3.7)(−83x)+(3.7)(−3)=(3.7)(7x)+(3.7)(−30)(Distribute)
−307.1x+−11.1=25.9x+−111
−307.1x−11.1=25.9x−111
Step 2: Subtract 25.9x from both sides.
−307.1x−11.1−25.9x=25.9x−111−25.9x
−333x−11.1=−111
Step 3: Add 11.1 to both sides.
−333x−11.1+11.1=−111+11.1
−333x=−99.9
Step 4: Divide both sides by -333.
−333x
−333
=
−99.9
−333
x=0.3
