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bogdanovich [222]
3 years ago
12

Which property of equality would be used to isolate the variable a in this equation?. a – 4 = 12. A. addition property of equali

ty. B. subtraction property of equality. C. multiplication property of equality. D. division property of equality
Mathematics
2 answers:
BARSIC [14]3 years ago
5 0
The property of equality that would be used to isolate the variable "a" in this equation is addition property of equality. he correct option among all the options that are given in the question is the first option or option "A". Adding 4 in both sides of the equation will easily isolate the variable "a". I hope the answer helps you.
Minchanka [31]3 years ago
4 0
A - 4 = 12...add 4 to both sides
a = 12 + 4...addition property of equality
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4 years ago
Marjorie is building a dog run that is 25'8" long and 8'8" wide. How much fencing will she need if the opening is 3'6" wide and
antiseptic1488 [7]

Answer:

782 in

Step-by-step explanation:

To find the length of fence, we have to find the perimeter first.

Given

Length = l = 25 feet 8 in

Width = w = 8 feet 8 in

Opening = o =3 feet 6 in

So,

we have to convert the lengths into same unit first

So,

l = (25*12)+8 = 308 in

w = ( 8*12) +8 = 104 in

O = (12*3) + 6 = 42 in

Perimeter = 2(l+w)

= 2(308+104)

=2(412)

=824

As the opening does not need fencing

Total fence = P - o

= 824 - 42

=782 in

or

65 feet 2 in ..

3 0
3 years ago
What could you use to show that opposite sides are congruent? Which quadrilaterals does it work for?
slega [8]
Square
as the sides are all equal
4 0
3 years ago
physics convention 11 companies set up equal sized square booths in a row along one wall of a convention center.The booths are a
givi [52]

Answer:

Side length of each booth is 8.35 ft approximately.

Step-by-step explanation:

There are 11 companies set up equal sized square booths in a row along one wall of a convention center.

Now, refer the diagram to answer the problem.

It is given area is 1200.

So, length x width =1200

(11x+24)(x+2)=1200

Multiply using FOIL method.

11x^{2}+22x+24x+48=1200

11x^{2}+46x+48-1200=0

11x^{2}+46x-1152=0

Solve using quadratic formula

x=\frac{-46+/- \sqrt{46^{2}-4(11)(-1152 } }{2(11)}

x=\frac{-46+/-\sqrt{2116+50688} }{22}

x=\frac{-46+/-\sqrt{52804} }{22}

Simplify it

x=\frac{-49+/- 229.79}{22}

Simplify to get two values for x.

x=8.35; x=-12.67

Here negative does not work.

Side length of each booth is 8.35 ft.

3 0
3 years ago
3 2/3 - 1 1/4 what’s the answer
Anettt [7]

Answer:

95/12 as an improper fraction.

8 0
3 years ago
Read 2 more answers
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