8. The percentage of salt in each mixture is 0.35%.
To find out the latter part of the problem, we can use algebra:
14 (grams of salt) = 0.35m (0.35% of the mixture)
14 ÷ 0.35 = 0.35m ÷ 0.35 (we want to find just m, so we have to divide it by 0.35)
40 = m. The scientist made 40 g of mixture!
9. We just divide 32.5 pounds by 0.25 ( a quarter).
32.5 ÷ 0.25 = 130 kids!
10. Her original distance is 0.5 miles. But! She walked back 0.25 (quarter) mile so now this adds a quarter of a mile of distance from her house to her school.
0.5 × 3 = 1.5 + 0.25 = 1.75 miles from her house to her school.
Answer and Step-by-step explanation:
Use the <u>Pythagorean Theorem </u>to solve for the <em>height</em>.
The height of the triangle is 3.
Now we can solve the shapes in the trapezoid.
4 times 3 = 12 (Rectangle)
= 
= 6 (Triangle)
12 + 6 = 18 (Trapezoid)
The area of the trapezoid is 18 
.
<em><u>#teamtrees #PAW (Plant And Water)</u></em>
There is about 25 fish in the tank just multiply
Standard form = 2x^2 + 16x + 17
Vertex form = 2(x^2 + 8x + 17/2) = 2(x^2 + 8x + 16 + 17/2 - 16) = 2(x^2 + 8x + 16) + 2(-15/2) = 2(x + 4)^2 - 15.
Therefore, vertex form is 2(x + 4)^2 - 15
