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faltersainse [42]
3 years ago
15

А

Mathematics
1 answer:
notsponge [240]3 years ago
3 0

Answer:

∠1=140

Step-by-step explanation:

∠1=∠3 ( corresponding angles)

20x+60=30x+20

-20x+30x=60-20

10x=40

x=4

∠1=20x+60=20(4)+60=140

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4 * 4 * 4 * 5 * 5<br> help please
yarga [219]

Answer:

=1600

Step-by-step explanation:

=4*4*4*5*5

=16*4*25

=64*25

=1600

Hope this helps, have a nice day/night! :D

4 0
3 years ago
a cold wave hit chicago when the temperature hit 62 f during the cold wave the temperature dropped 2 degrees every hour how many
Vladimir [108]
We start at 62 Fahrenheit. And every hour we drop two degrees. We want to know how long it took for the temperature to drop to 40 Fahrenheit.

If one hour passed, then the temperature dropped two degrees.
If two hours passed, then the temperature dropped 4 degrees.

See the pattern? We can define this as 2h. Where h represents time in hours.
We subtract 2h from 62. 

We can write this as a function. F(h) = 62 - 2h.
Where F is the temperature in Fahrenheit. And h is the hour(s).

Now that we have the formula, let's plug in the value 40 Fahrenheit to see how long it took for the temperature to drop to 40 degrees.

40 = 62 - 2h
Subtract 62 from each side

-22 = -2h
Divide both sides by 2

h = 11

So, it took 11 hours for the temperature to drop to 40 Fahrenheit.
3 0
3 years ago
Please help! I’m not good at this type of stuff
docker41 [41]
What’s the question
8 0
3 years ago
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On Reese’s most recent phone bill bill, 80% of the minutes she used were calling her mother. If she talked to her mother for 348
dexar [7]
She used 278.4 minutes
5 0
3 years ago
rectangular prism ,wit measurements of 1.2 ft wide,3 ft long, and 4.5 ft tall.What is the volume of the crate in cubic inches?
Taya2010 [7]
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1.2*3*4.5= 16.2
The answer is 16.2 cubic inches
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3 years ago
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