Answer:
angle A is 63 degrees,
angle B is 57 degrees
Step-by-step explanation:
first, let's create the equation. Pretty simple, because angles a and b become 120 degrees when added up, this this will become:
2x+3+2x-3=120
now, we make it simpler. In this case, just add up the numbers that we can add up. this eventually becomes:
4x=120
now, all we need to do is divide 120 by 4, which becomes 30. So, x=30.
substitute the 30 into the x in the original equation, and this becomes:
60+3+60-3=120
63+57=120
thus, angle A is 63 degrees, and angle b is 57 degrees.
Answer:
-2.72
Step-by-step explanation:
To find the area, you would multiply length times width.
For example, to find the area of problem number 1, I would multiply 8 (length) times 2 (width) to get the area of 16.
I hope this helped! If you need another example, feel free to ask!
:-)
Answer:
Solve
1
Distribute
3
+
6
(
−
2
)
=
6
0
3y+{\color{#c92786}{6(y-2)}}=60
3y+6(y−2)=60
3
+
6
−
1
2
=
6
0
3y+{\color{#c92786}{6y-12}}=60
3y+6y−12=60
2
Combine like terms
3
+
6
−
1
2
=
6
0
{\color{#c92786}{3y}}+{\color{#c92786}{6y}}-12=60
3y+6y−12=60
9
−
1
2
=
6
0
{\color{#c92786}{9y}}-12=60
9y−12=60
3
Add
1
2
12
12
to both sides of the equation
9
−
1
2
=
6
0
9y-12=60
9y−12=60
9
−
1
2
+
1
2
=
6
0
+
1
2
9y-12+{\color{#c92786}{12}}=60+{\color{#c92786}{12}}
9y−12+12=60+12
4
Simplify
Add the numbers
Add the numbers
again
9
=
7
2
9y=72
9y=72
5
Divide both sides of the equation by the same term
9
=
7
2
9y=72
9y=72
9
9
=
7
2
9
\frac{9y}{{\color{#c92786}{9}}}=\frac{72}{{\color{#c92786}{9}}}
99y=972
6
Simplify
Cancel terms that are in both the numerator and denominator
Divide the numbers
=
8
y=8
y=8
Solution
=
8
Step-by-step explanation:
y=8
Answer:
The answer would be B.
Step-by-step explanation:
1:?
4:12
?:27
If 4:12 is a ratio of 1:3 then we can assume that the other unknown numbers also use this same ratio. So the ratio for 1:? would be 1:3 and the ratio for ?:27 would be 9:27 bringing you back to the original ratio of 1:3
