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never [62]
3 years ago
12

X+Y=9 $21.50x+$21.70y=$215.70

Mathematics
1 answer:
faltersainse [42]3 years ago
4 0

Answer:You already answer the question what is there to answer again?

Step-by-step explanation:

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68/100 as a fraction? <br> 5/10 as a fraction?
horsena [70]

Answer:

68/100 - 17/25

5/10 - 1/2

Step-by-step explanation:

You have to simplify both into lowest term.

8 0
2 years ago
Solve for X<br><br> PLEASE HELP ME
guapka [62]

Answer:

x = 10°

Step-by-step explanation:

Step 1:

92° + x° + 78° = 180°             Supplementary Angles

Step 2:

x° + 170° = 180°         Combine Like Terms

Step 3:

x° = 180° - 170°       Subtract 170° on both sides

Answer:

x = 10°

Hope This Helps :)

4 0
2 years ago
Write an expression for the calculation subtract 10 divided into fifths from 20 divided in half
crimeas [40]
20/2-10/5. You divide 20 by 2 and subtract that from 10 divided by 5
4 0
3 years ago
How many different ways can 3 singers be selected from 5 who came to an audition
abruzzese [7]

This is known as "5 take 3", where ordering is not important.

\binom{5}{3} = \frac{5!}{3!(5-3)!} = \frac{120}{6\cdot2} = 10

5 0
3 years ago
5/7x-4=21<br> solve folve for x
Aleksandr-060686 [28]

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

7*x-4-(21)=0

Solve  :    7x-25 = 0

Add 25 to both sides of the equation :

                     7x = 25

Divide both sides of the equation by 7:

                    x = 25/7 = 3.571

6 0
3 years ago
Read 2 more answers
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