Since the big triangle is an isosceles one, we conclude that the angles of the left triangle are: 32, 90 and 3x-10. Sinche the sum of this angles have to be 180° we have:

$(3x-10)+32+90=180$

Solving for x, we have:

$\begin{gathered} (3x-10)+32+90=180 \\ 3x-10+32+90=180 \\ 3x=180+10-90-32 \\ 3x=68 \\ x=\frac{68}{3} \\ x=22.67 \end{gathered}$

Therefore, x=22.67 and the answer is A.

7 0

1 year ago

1. Ben had 50 baseball cards in each of 25 boxes. How many baseball cards did he have altogether?

Romashka [77]

1,250 because there’s 25 boxes and each have 50 so you multiple 50x25 to find out how much cards are in each box

8 0

2 years ago

Read 2 more answers

2 of 10 students received A’s in science. What percent of the students received grades other than A’s?

marishachu [46]

Answer:

c. 20%

multiply both the numerator and denominator by 10, to get 20/100 making the percentage 20

6 0

3 years ago

If <br>4x+(y+x)=180<br>what is x? what is y?

uysha [10]

Step-by-step explanation:

$4x+(y+x)=180\\\\\text{Solve for}\ x:\\\\4x+y+x=180\qquad\text{combine like terms}\\\\(4x+x)+y=180\qquad\text{subtract}\ y\ \text{from both sides}\\\\5x=180-y\qquad\text{divide both sides by 5}\\\\\dfrac{5x}{5}=\dfrac{180-y}{5}\\\\\boxed{x=\dfrac{180-y}{5}}\\\\\text{Solve for}\ y:\\\\5x+y=180\qquad\text{subtract}\ 5x\ \text{from both sides}\\\\\boxed{y=180-5x}$

7 0

3 years ago