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Radda [10]
3 years ago
9

Find x and y? i dont want to cheat but can anyone tell me how to do it or how to start out ​

Mathematics
2 answers:
yawa3891 [41]3 years ago
6 0

Answer:

y= 39  x= 10

Step-by-step explanation:

congruent isosceles triangles

longer sides measure the same  13 and 13    39 and 39 ( y =39)

39/30  = 13/x

cross multiplication:

39x = 13x30

39x = 390

x=10

mash [69]3 years ago
4 0

Answer:

x is 13

y is 39

Step-by-step explanation:

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The 7 in 507.3 has ten times the value of the 7 in?<br> Is it 12.007, 725, 67 or 30.76.
defon
I believe the answer would be 30.76
4 0
3 years ago
Please help me with this problem!
Oksanka [162]
(25-y) ^2-y^2=25
y=12
x=25-12
x=13

(13,12)
7 0
3 years ago
Al saves pennies. He agreed to give 3/7 of his pennies to Bev if she would give 3/7 of what she got from Al to Carl and if Carl
ser-zykov [4K]

Answer:

2744 pennies.

Step-by-step explanation:

Let x represent the number of pennies Al have initially.

We have been given that Al agreed to give 3/7 of his pennies to Bev, so number of pennies Bev will get would be \frac{3}{7}x.

We are also told that Bev gave 3/7 of what she got from Al to Carl, so number of pennies that Carl will get would be \frac{3}{7}x\cdot \frac{3}{7}=\frac{9}{49}x.

Further, Carl gave 3/7 of what he got from Bev to Dani, so number of pennies that Dani will get would be \frac{9}{49}x\cdot \frac{3}{7}=\frac{27}{343}x.

We are also told that Dani received 216 pennies. Now, we will equate 216 to \frac{27}{343}x and solve for x as shown below:

\frac{27x}{343}=216

\frac{27x}{343}*343=216*343

27x=74088

\frac{27x}{27}=\frac{74088}{27}

x=2744

Therefore, Al have 2744 pennies initially.

3 0
3 years ago
What is 31 = -4v - 5?
FrozenT [24]
31 = -4v - 5

31 (+5) = -4v -5 (+5)

36 = -4v

36/(-4) = -4v/(-4)

36/ -4 = v

v = -9 is your answer

hope this helps
4 0
3 years ago
Help me for this equation:<br><br> 28–3x = 13<br><br> What is the answer?
juin [17]
I got you, the answer would be x=5
7 0
3 years ago
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