Answer:
70 degrees
Step-by-step explanation:
Supplementary means the angles add up to 180 degrees. We can set up an equation using this:
9x+20+6x+10=180
Combine like terms.
15x+30=180
Isolate variable.
15x=150
x=10
Substitute in the variable for the expression of angle B
6(10)+10=70
Hope this helps!
Answer:
26=x
Step-by-step explanation:
Answer:
I don’t understand the question
Step-by-step explanation:
Answer:She will donate 18 dolls.
Step-by-step explanation:
She decided she wants to donate 30% of her dolls to an orphanage to others who will enjoy them. Total number of dolls that Alex was having was 60. She wants to donate 30% of 60 dolls. 30% of 60 dolls is determined by dividing 30 by 100 and multiplying the result by 60. It becomes
30/100 × 60/= 0.3 × 60 = 18 dolls
<u>Given</u>:
Given that the bases of the trapezoid are 21 and 27.
The midsegment of the trapezoid is 5x - 1.
We need to determine the value of x.
<u>Value of x:</u>
The value of x can be determined using the trapezoid midsegment theorem.
Applying the theorem, we have;

where b₁ and b₂ are the bases of the trapezoid.
Substituting Midsegment = 5x - 1, b₁ = 21 and b₂ = 27, we get;

Multiplying both sides of the equation by 2, we have;

Simplifying, we have;

Adding both sides of the equation by 2, we get;

Dividing both sides of the equation by 10, we have;

Thus, the value of x is 5.