Answer:
If all of the sections are the same well it is 21
Step-by-step explanation:
35 x 3/5 = 21
To answer question 12, you first need to know the definition of a <em>prism</em> and a<em> pyramid.
</em>A <em>pyramid </em> is a 3-D structure with one base, whose outer faces are made of triangles, and meet at a single point at the top.
A <em>prism</em> is any 3-D shape with a base of any number of sides, another base with the same amount of sides, and faces joining the two together on every side of the bases.
12.
Shape A is a <em>pyramid</em>, because it has one base, and all the faces join together in at one point.
Shape B is a <em>prism</em>, because it has two bases, and faces joining every side of the bases.
Shape C is a <em>prism.</em>
Shape D is a <em>pyramid.
</em>For #13, you have to know the definition of a cube to figure out the math of how many cubes there are.
A cube is a 3-D shape with six sides, all made up of squares of the same size.
The box has a volume of 120 cubic inches, and each cube is 1 inch. Since every side of a cube is equal, a 1-inch cube is one cubic inch.
This means that a box with a volume of 120 cubic inches will fit 120 of the 1 inch cubes.
1 layer of the cubes, in the diagram, is 8 cubes by 3 cubes, or 24 cubes total.
To find the number of layers needed to fill the box, you divide 120 by 24.
120 ÷ 24 = 5
The answer to #13 is 5 layers.
Answer:
Write a system of equations to represent the situation.
d: Number of dance songs
r: Number of rock songs
d + r = 1075
d = 4 * r
Answer:
$422.50
Step-by-step explanation:
If the bike is marked down by 35% then the final sale price will be 65% of the original price (since 100% - 35% = 65%).
Convert 65% into a decimal: 65% = 65/100 = 0.65
Therefore, 65% of $650 = 0.65 × 650 = $422.50
Answer:
The answer is <u>A. 990.</u>
Step-by-step explanation:
Now, to find the greatest possible length of time any of the mowers operates.
The 3 lawn-service mowers operate at the average length of time = 930 minutes.
So, the total length of time the 3 lawn mowers take = 
The least length a mowers operates = 900 minutes.
Now, to find the greatest possible length of time any of the mowers operates:
Let 
be the greatest possible length of time any of the mowers operates.
<em>As, any one of the mowers operates greatest length.</em>
<em>So, rest of the two mowers be least at length.</em>
According to question:
<em>Subtracting both sides by 1800 we get:</em>
<u><em>Thus, the greatest possible length of time any of the mowers operates is 990 minutes.</em></u>
Therefore, the answer is A. 990.
