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tiny-mole [99]
3 years ago
7

Explain how you can use multiplication to show that two-fourths and four-eighths are equivalent.

Mathematics
1 answer:
ANTONII [103]3 years ago
3 0

Answer:

2/4 and 4/8 are equivalent because you can use the butterfly method of multiplication. Meaning you multiply the numerator by the other fractions denominator and vis-versa.

Step-by-step explanation:

2 x 8 = 16

4 x 4 = 16

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A new crew of painters takes two times as long as the old painters. Together they can paint in 6 hours. How many hours does it t
babymother [125]
Let n be old painters time. Then the new painters are 2n. So:
1/n+1/2n=1/6
2+1=2n/6
2n=18
n=9
The old painters take 9 hours; the new ones take 18
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3 0
2 years ago
Please Help!! Which graph shows the solution to this system of inequalities?
scoundrel [369]

Answer:

A. The first graph

Step-by-step explanation:

When you graph these two equations on a graphing calc, you should be able to see one dotted line and one solid, as well as the solutions being mostly in the 1st quadrant.

7 0
3 years ago
Round 23 to the nearest ten
svetlana [45]

Answer:

20

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7 0
2 years ago
Read 2 more answers
A flagpole is supported by a wire fastened 60 feet from its base. The wire is longer than the height it reaches on the flagpole.
maxonik [38]

Answer:

135.5ft

Step-by-step explanation:

THIS COMPLETE THE QUESTION

flagpole is supported by a wire fastened 60 feet from its base. The wire is 14 feet longer than the height it reaches on the flagpole. Find the length of the wire.

Let X be the length of the wire

Let y be the height of the pole

X= Y + 14

Y= X -14

We can form a right angle triangle form this, where X denote the Hypotenose, Y is the Opposite, and 60feet is the Adjacent.(CHECK THE ATTACHMENT FOR THE TRIANGLE)

Using Pythagoras theorem

X²= 60² + Y²

X² = 3600 + Y²

if we subsitute for Y we have

X² = 3600 + (X -14)²

X² = 3600 +X² -14X-14X+196

X²-X²+ 28X= 3600+196

28X= 3796

X= 3796/28

=135.5ft

hence length of the wire is 135.5ft

8 0
2 years ago
PLLZZZZ HELP WILL GIVE BRAINLIEST!
Sunny_sXe [5.5K]
<span>−1 1/3 - 1/6
= -1 2/6 - 1/6
= (-1 2/6) + (-1/6)
= -1 3/6
= -1 1/2</span>
8 0
2 years ago
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