Make a system of equations.


Plug in 2d for 'q' in the first equation:


Multiply:

Combine like terms:

Divide 0.60 to both sides:

Now plug this into any of the two equations to find 'q':



So she has 10 dimes and 20 quarters.
Answer:
ok
Step-by-step explanation:
1. Since it is an isosceles triangle, we know that the two length sides have to be the same. Therefore, the angles across from the sides are the same. They cannot be 90 degrees or above because 90+90+0 would mean we would have all the interior angles at 180 but the thing is the third angle cannot be zero. Therefore, the other two angles cannot be 90 or more. They must be acute.
Also, if it had two right angles (90 degrees) or more, it could not close to be a triangle.
Answer:
Area of triangle = 192 cm²
Step-by-step explanation:
→ Area of triangle = 0.5 × Base × Height
Base = 24 cm
Height = 16 cm
→ Substitute in the values
Area of triangle = 0.5 × 24 × 16
→ Simplify
Area of triangle = 192 cm²