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Kazeer [188]
3 years ago
7

If Half the number is 40 less than 56. Find the number

Mathematics
2 answers:
denis-greek [22]3 years ago
6 0

Answer:

The number is 8

Step-by-step explanation:

Lets say the number is x.

x/2=56-40

combine 56 and -40

x/2=4

multiply 2 by both sides

x= 8

pogonyaev3 years ago
5 0

Answer:

32

Step-by-step explanation:  

half the number is 56 - 40 which is 16 and it says half the nuber is 16 so 16 x 2 is 32

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△WPJ∼△DNJ<br> What is PWPW ?<br> Enter your answer in the box.
Kruka [31]
Use <em>CPCTC</em> and make ratios and proportionalities to find the value of segment PW:

If △WPJ∼△DNJ, then according to CPCTC, WP must be proportional to DN and PJ must be proportional to JN. Now, we can make a ratio:

\frac{WP}{DN}= \frac{PJ}{NJ} 

Substitute the values that are given in the diagram.
DN=87.5
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\frac{WP}{87.5}= \frac{64}{56}

Solve for x. You can do it by cross-multiplication.

\frac{WP}{87.5}= \frac{64}{56} \\ 56*WP=64*87.5 \\ 56*WP=5600 \\ WP=100

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3 years ago
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