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likoan [24]
3 years ago
9

Help plzzzzzzzzzzzzzzzzzzzzzzz :(

Mathematics
2 answers:
riadik2000 [5.3K]3 years ago
5 0

Answer:

40 degrees because you can see the same square at the bottom that means 40 degrees

lora16 [44]3 years ago
4 0

Answer:40 degrees

Step-by-step explanation:

Since triangle similarity depends on either the measurement of sides which no given about it here or equal angles so angle c = angle R

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50 POINTS! :D
Alexxandr [17]

Answer:

The speed of the first car is 60 mph

Step-by-step explanation:

speed = distance/time

Solve the above equation for distance to get

distance = speed * time

or simply

d = st

Now we use this formula for distance to write an equation for each car.

Let s = speed of second car

Then since the speed of the first car is 10 mph faster, the first car's speed is s + 10.

The time the two cars traveled is equal but unknown, so let the time = t.

First car: speed = s + 10; time = t; distance = 120 miles

d = st

120 = (s + 10)t    

(s + 10)t = 120      Equation 1

Second car: speed = s; time = t; 100 miles

d = st

100 = st

st = 100       Equation 2

Equations 1 and 2 form a system of 2 equations in 2 unknowns.

(s + 10)t = 120

st = 100

Distribute t in the first equation.

st + 10t = 120

From the second equation we know st = 100, so substitute 100 for st.

100 + 10t = 120

10t = 120

t = 2

The time traveled was 2 hours.

Equation 2:

st = 100

Substitute t with 2.

s * 2 = 100

s = 50

The speed of the second car was 50 mph.

The speed of the first car is s + 10.

s + 10 = 50 + 10 = 60

Answer: The speed of the first car is 60 mph

8 0
3 years ago
5z+7=3 what solution
Maru [420]

Answer:

z = -4/5

Step-by-step explanation:

5z + 7 = 3

5z = -7 + 3

5z = -4

z = -4/5

Hope this helps :)

Let me know if there are any mistakes!!

6 0
3 years ago
What is the total surface are when the radius is 2 and the height is 9.5
Olenka [21]

Answer:

Total surface area = 73.56506

Step-by-step explanation:

I do not know what shape you are trying to find the total surface area for, but I hope this is correct & helpful.

8 0
2 years ago
What is the volume of a rectangular prism<br> 8 inches long, 5 inches wide, and 2 inches high?
Ivahew [28]

Answer:

132 Cubic Inches, Search up how to find the the surface area for rectangular prism it helps!

5 0
3 years ago
Trish runs 3 miles every 50 minutes. At this rate, how many minutes did Trish tun 12 miles? plzzz help me!!!
Alika [10]
50 x 4 = 200 minutes

The reason why I multiplied by 4 was because 12 divide 3 = 4

200 minutes is equal to 3 hours 20 minutes
There's your answer

Hope this helps!
7 0
3 years ago
Read 2 more answers
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