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Eduardwww [97]
3 years ago
11

PLS NEED HELP NEED DONE IN 10 MIN.

Mathematics
1 answer:
Grace [21]3 years ago
7 0

Answer: 15

Step-by-step explanation:

12/18=10/x

x=15

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Working together, Shawn and Hector can install a tile floor in 6 hours. It would take Shawn 9 hours to do the job alone.
Yanka [14]
Hector could do it in 3 hours.
Your question doesn’t really make sense though.
3 0
3 years ago
Read 2 more answers
63° 55°<br> X =<br> degrees.
lorasvet [3.4K]

Answer:

Step-by-step explanation:

The sum of these angles must equal 360 degrees.

x+63+55=360

x+118=360

x=242

8 0
2 years ago
If 5 is an element in the domain of f(x)= 8x-21/5, what is the corresponding element in the range?
Delvig [45]

Answer:

The corresponding element in the range when 5 is an element  in the domain is f(5)=\frac{179}{5}

Step-by-step explanation:

Given that the 5 is an element in the domain of f(x)

The function f is defined by f(x)=8x-\frac{21}{5}

To find the corresponding element in the range:

That is put x=5 in the given function f(x)

Therfore f(x) becomes

f(5)=8(5)-\frac{21}{5}

=40-\frac{21}{5}

=\frac{200-21}{5}

f(5)=\frac{179}{5}

Therefore corresponding element in the range when 5 is an element  in the domain is f(5)=\frac{179}{5}

6 0
3 years ago
The reciprocal of 2/3 is 3/2. If the reciprocal of 4x/5 is 1/20, what is x?
Black_prince [1.1K]

Since 4x/5 is the reciprocal of 1/20, that means that 4x/5 = 20/1, or 20. Using this info, we can form the equation \frac{4x}{5}=20 . From there we can solve for x.

Firstly, multiply both sides by 5: 4x=100

Next, divide both sides by 4 and your answer will be x=25

6 0
3 years ago
Find the value of X. 87° 92° 105 135​
Makovka662 [10]

Answer:

121°

Step-by-step explanation:

Sum of angles in a pentagon = ( n-2) 180

(5-2)180

=3x180

=540°

X+87+92+105+135=540

X+419=540

X=540-419

X=121°

7 0
2 years ago
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