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zloy xaker [14]
3 years ago
11

Answer it and show your work. Which letter choice is it.

Mathematics
1 answer:
ivanzaharov [21]3 years ago
7 0

Answer:

b = 55 degrees

Step-by-step explanation:

The angles 30, a, b and 45 must sum up to 180 degrees

Subtracting (30 + 45) from both sides leaves us with a + b = 105 degrees.

But b = a + 5.  Substituting a + 5 in the equation above yields

a + a + 5 = 105 degrees, so that

2a = 100 degrees, and a = 50 degrees.  Then b = a + 5, or b = 55 degrees.

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steve is 5 years older than his brother joe. in 4 years steve will be twice as old as joe will be then. how old is steve now?
creativ13 [48]
Here is the answer with an explanation

6 0
3 years ago
Solve for x 2.3(6-x)+22=96-2.3(2x+12)
melomori [17]

Hello!

(this took me 20 minutes to type out from what I wrote on paper lol)

I'm going to guide you through this one step at a time

Step 1: Simplify both sides of the equation.

2.3(6−x)+22 = 96−2.3(2x+12)

(2.3)(6)+(2.3)(−x)+22 = 96+(−2.3)(2x)+(−2.3)(12) (use distributive property of multiplication)

13.8+−2.3x+22 = 96+−4.6x+−27.6

(−2.3x)+(13.8+22) = (−4.6x)+(96+−27.6) (Combine The Like Terms)

−2.3x+35.8 = −4.6x+68.4

−2.3x+35.8 = −4.6x+68.4

Step 2: now, add 4.6x to both sides.

−2.3x+35.8+4.6x = −4.6x+68.4+4.6x

2.3x+35.8 = 68.4

Step 3: next, subtract 35.8 from both sides.

2.3x+35.8−35.8 = 68.4−35.8

2.3x = 32.6

Step 4: Divide both sides by 2.3.

\frac{2.3X}{2.3} = \frac{32.6}{2.3}

fractions solved: x = 14.173913

your final answer is: x = 14.173913

I hope this helps, and have a nice day!

5 0
3 years ago
This might seem like an easy question to answer but, "Doreen plans to divide her stickers among 5 friends. If she has 55 sticker
Evgen [1.6K]

Answer:D

Step-by-step explanation:

Total number of stickers is 55

She has 5 friends

Each friend will get 55/5= 11 stickers

7 0
3 years ago
Is 3.20 greater than,less than, or equal to 3.02
Alik [6]
It is definitely not equal to it.  It's greater.
4 0
3 years ago
Read 2 more answers
What is the Circumference of a circle with a radius of 5? Use 3.14 for pi
Thepotemich [5.8K]

Answer:

=78.5cm

Step-by-step explanation:

pi=3.14

formula=3.14×r×r

3.14×5×5

78.5

4 0
3 years ago
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