Answer:
x=15º
Step-by-step explanation:
A triangle's angles add up to 180º.
∠A=30º
∠C=180º-45º
∠B=xº
To find ∠B we have to first find ∠C.
Since ∠C does not have an angle, knowing that a straight line is 180º we can subtract it from 45º to find ∠C.
180-45=135
∠C=135º
Now add ∠A and ∠C.
30+135=165
Subtract the sum from 180º
180-165=x
x=15º
Hope this helps :)
Answer:
The answer is -0.5
Step-by-step explanation:
Divide both side by the numeric factor on the left side then solve
Answer:
2.45x10^3
3.13x10^1
4.987
1.157x10^-4
Step-by-step explanation:
I have assumed that 1.1.57 = 1.157 and the same with the second and third numbers.
3.13 * 10^1 = 31.3
1.157 * 10^-4 = 0.0001157
2.45 * 10^3 = 2450.
Answer:
Hope that helps
Step-by-step explanation:
Brainliest would be much appreciated
Answer:

Step-by-step explanation:
Let snowman be x , star be y and shopping bag be z.
<u>So, the given equations are:</u>
1) x + y = 20 (Eq. 1)
2) z = x + x
z = 2x (Eq. 2)
3) z + x = 18 (Eq. 3)
Put Eq. (2) in Eq. (3)
2x + x = 18
3x = 18
Divide both sides by 3
x = 18 / 3
x = snowman = 6
Now, Put x in (Eq. 1)
6 + y = 20
Subtract 6 to both sides
y = 20 - 6
y = 14
So,
Star = 14
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Hope this helped!
<h3>~AH1807</h3>