Answer:
1. 30(8.75) + 11t = 400
2. 12.5 hours
Step-by-step explanation:
1. What is given is you work for 30 hours per week at a gas station for $8.75 an hour. You also work as a landscaper for $11 an hour. You want to a make a total of $400 per week.
30 hours and $8.75 an hour would be equivalent to 30(8.75)
We don’t know how many hours you work as a landscaper but you earn $11 an hour, which is equivalent to 11t
Finally, you want to earn a total of $400 a week, which means the sum equals 400
30(8.75) + 11t = 400
2. 30(8.75) = 262.5
400 - 262.5 = 137.5
137.5 / 11 = 12.5
It looks like the length of a and b should be the same. You can use the Pythagorean theorem (only works with right triangles):
a² + b² = c² (c is the hypotenuse or the longest side of the triangle, a and b are the other side lengths of the triangle)
a² + (4)² = (5)²
a² + 16 = 25
a² = 9
a = 3
a and b have a length of 3
Answer:
449.54 millimetres
step by step explanation
Blood donated by Hannah = 1.9 cups
1 cup = 236.6 millimetres
Therefore, 1.9 cups = 1.9 * 236.6 = 449.54 ml
So Hannah donated 449.54 millimetres of blood.
If the person weighs 186 pounds on Earth then on the moon it will weigh,
Therefore,
186/6=31 pounds
Its difference is 186-31=155
hope it helps you