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Alex777 [14]
3 years ago
5

If 25×60 is 1700 W is 1700÷6.8

Mathematics
1 answer:
zysi [14]3 years ago
4 0
250 hope this helped :)
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Check
asambeis [7]

Answer:

Step-by-step explanation:

An equation contains a sign equality (=) between two expressions.

And an expression is a simple algebraic statement.

By these definitions,

          Equations                          Expressions

         x = 2x + 5                            21x - 13 + 11x

         \frac{1}{2}x=5+3                           -3.7x - 13  

         3x + 1 = -2.1                          \frac{1}{2}x+5

7 0
3 years ago
Solve the equation 0.25 (8z - 4) = z + 8 - 2z
Andrew [12]
Distribute
2z-1=z+8-2z
add like terms
2z-1=-z+8
add z to both sides
3z-1=8
add 1 to both sides
3z=9
divide both sides by 3
z=3
4 0
3 years ago
Read 2 more answers
Find the reciprocal of each number. Do not simplify. 5/4
posledela
Google it.... <em> </em>I just did and there is a video.
7 0
3 years ago
a horticulturalist is building a fence around a rectangular garden using the side of a building for one side of the enclosure. s
Harman [31]
The garden area is maximum when the enclosure is a square.
If a is the length of the side of the square then the length of the building is also a.
The perimeter length is 4a made up of 81+a feet, so 81+a=4a and 3a=81 making a=27 feet.
5 0
3 years ago
5. A monument casts a 78 ft. shadow at the same time that a vertical yardstick casts a 4.5 ft. shadow. How high is the monument?
rodikova [14]

Hello,

Using Thalès 's theorem:

Let's h the height of the monument.

\dfrac{1}{h} =\dfrac{4.5}{78} \\\\h=\dfrac{78}{4.5} =\dfrac{156}{9} \approx{17.3\ (ft)}

If you don't know what is the Thalès's theorem,

imagine that the similar triangles.

5 0
3 years ago
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