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aivan3 [116]
3 years ago
8

7a-17=4a+1 what's the solution to this problem

Mathematics
1 answer:
BabaBlast [244]3 years ago
3 0
7a-17=4a+1
7a-4a=1+17
3a=18
a=6

ans: a=6
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Frances is sewing a border around 2 rectangular tablecloths that each measure 9 feet long by 6 feet wide.  If it takes her 3 min
alex41 [277]
The perimeter of a rectangle is - 2 x (length + breadth). 

Also, 1 feet = 12 inches.

So, the dimensions of the tablecloth are 108 inches long by 72 inches wide. So, the total perimeter of the table cloth is --> 2 x (108 + 72) = 360 inches. 

So, time taken for 1 tablecloth = 360 x 3 = 1080 minutes.

And, Time taken for 2 tablecloths = 1080 x 2 = 2160 minutes.

So, to complete her sewing project, Frances will take a total of 2160 minutes (36 hours).

8 0
3 years ago
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RES<br> Find (fºg)(1)<br> Ax) = x2 - 1<br> g(x)= v<br> a 0<br> c. 4.<br> b.<br> d. 18<br> Help pls
slava [35]

Answer:

A

Step-by-step explanation:

So we have the two functions:

f(x)=x^2-1\\g(x)=\sqrt x

And we want to find:

(f\circ g)(1)

This is the same as:

f(g(1))

So, to find the answer, find g(1) first:

g(x)=\sqrt x\\g(1)=\sqrt1\\g(1)=1

Now, substitute this value for g(1):

f(g(1))\\=f(1)

And plug this into f(x):

f(x)=x^2-1\\f(1)=(1)^2-1\\f(1)=1-1=0

Therefore:

f(1)=f(g(1))=(f\circ g)(1)=0

Our answer is A

3 0
4 years ago
Read 2 more answers
he new Coat and Jacket Store was ready to open. The workers put out 42 racks of men’s and boy’s coats and jackets with 16 items
Pavlova-9 [17]
42 x 16=672
35 x 24=840

<span>672+840=1512</span>
3 0
3 years ago
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A Chevy is traveling 10 mph faster than a Toyota. The Chevy is traveling at a rate of 60 mph.
Lyrx [107]
60mph-10mph=T would be the answer... I believe.
7 0
3 years ago
If 2 X + 1 ,2 x-1 and 3 X + 4 are in AP find the value of x​
julia-pushkina [17]

Answer:

x = - 7

Step-by-step explanation:

Given that the terms are in AP , then

a₃ - a₂ = a₂ - a₁ , substitute values

3x + 4 - (2x - 1) = 2x - 1 - (2x + 1) ← distribute and simplify both sides

3x + 4 - 2x + 1 = 2x - 1 - 2x - 1

x + 5 = - 2 ( subtract 5 from both sides )

x = - 7

6 0
3 years ago
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