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Oduvanchick [21]
3 years ago
15

How does understanding place value help you to subtract across zeros?

Mathematics
1 answer:
Lesechka [4]3 years ago
6 0
Zero is like a negative number. It is mathematically impossible to subtract across zeros
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What is the area of a square,<br> in square feet, whose perimeter<br> is 150 feet?
Tomtit [17]

Answer:

150/4 = 37.5

37.5 times 37.5 is

<h2>1406.25 sqft²</h2>

Step-by-step explanation:

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2 years ago
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The area of the base of a cone is 16, and the height is 10. Find the area of a cross-section that is distance 5 from the vertex.
zubka84 [21]

Answer: Area of cross section would be 4 square units.

Step-by-step explanation:

Since we have given that

Area of base of cone = 16 sq. units

Height = 10

We need to find the area of cross section that is distance 5 from the vertex.

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total height of cone = 10

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So, it becomes,

(\dfrac{1}{2})^2=\dfrac{A}{16}\\\\\dfrac{1}{4}=\dfrac{A}{16}\\\\16=4A\\\\\dfrac{16}{4}=A\\\\4=A

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3 0
3 years ago
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How many degrees are there in each exterior angle of an equilateral triangle
Alchen [17]
<span>Since each interior angle is 60 degrees, each
exterior angle is the supplement of a 60 degree
angle or 120 degrees.</span>
4 0
4 years ago
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Two families went to the Zoo. The Diaz family paid $170 for 3 children and 2 adults. The Jones family paid $360 for 4 children a
lesantik [10]

Answer:

\mathrm{A.\:}\begin{cases}3x+2y=170,\\4x+6y=360\end{cases}\\\\\mathrm{B.\:} \$ 30

Step-by-step explanation:

We can write the following system of equations:

\begin{cases}3x+2y=170,\\4x+6y=360\end{cases}, with variables as defined in the question.

Multiply the first equation by -3 and add both equations to isolate and solve for x:

\begin{cases}-9x-6y=-510,\\4x+6y=360\end{cases}\\-5x=-150,\\x=\fbox{$\$ 30$}.

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3 years ago
the area of a rectangle patio is 5 5/8 square yards and it's length is 1 1/2 yards what is the width of the patio.
Anika [276]

Answer:

Ok, since length times width is the area of a rectangle, and we have to find width, we have to do 5 5/8 divided by 1 1/2

The width is  3 3/4

Step-by-step explanation:


5 0
4 years ago
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