Round 2.81 to 2.8 and 3.72 to 3.7. Add both together to get 6.5
Answer:
The number is 18
Step-by-step explanation:
You can write an equation to represent this. Let x represent the unknown number.
3x - 18 = 2x
Move 2x to the left side. Remember, "change the side, change the sign." Add 0 as a placeholder to the right of the equals sign.
3x - 2x - 18 = 0
Simplify like terms.
x - 18 = 0
Move -18 to the right of the equals sign.
x = 18
Now that we know x = 18, we can substitute it into the problem.
"Eighteen less than three times 18 is two times 18."
18 x 3 = 54
54 - 18 = 36
36 is, in fact, two times 18. We can check this by dividing 36 by 2.
36 ÷ 2 = 18
Answer:
B
Step-by-step explanation:
So first I solved for y. The angle boc and cod together have to be 180 degrees so I subtracted 180 from 45 and then divided by 5. I got 27. Then since I knew what y was I could solve x. Since 5 times 27 is 135. I just plugged in 22 and 23 and realized it had to be 22.
RAISE THAT GRADE!! you got this I hope this helps!
m <3 = 52 °
Explicación paso a paso:
Puntos para recordar
1). El rombo es un paralelogramo. Los ángulos opuestos son suplementarios.
2). Las diagonales bisecan los ángulos de cada esquina.
3). Los ángulos alternos internos son iguales.
4). Todos los lados son iguales
Para encontrar la medida de <3
De la figura podemos ver un paralelogramo.
Se da que, n <3 = 80
Sabemos que m <1 = m <3
Por propiedad de suma de ángulos,
m <1 + m <1 + m <3 = 180
3 * m <1 = 180 - 80 = 100
<m1 = 100/2 = 50
Por lo tanto m <3
Answer:
Step-by-step explanation:
Assuming the question is x^2 + 6x = 27x, subtract 6x from both sides. x^2 = 21x. Then, divide both sides by x and you get x= 0, 21