D + e + f when d = 20, e = -4 and f = -2 is
20 + (-4) + (-2) = 20 - 4 - 2 = 14
Answer:
6 miles
Step-by-step explanation:
180 ÷ 30 = 6
Bianca drove 6 miles before lunch to her Grandma's house.
Answer:53
Step-by-step explanation:
Answer:
120 divided by 10 is 12 yards per completion
150 grams of zinc is present
<em><u>Solution:</u></em>
Given that, ratio of zinc to copper is 3 to 13
A jar of the chemical contains 650 grams of copper
From given information,
zinc : copper = 3 : 13
Let the zinc present be 3x
Let the copper present be 13x
Given that, jar contains 650 grams of copper
13x = 650
x = 50
Substitute x = 50 in 3x
Zinc present = 3x = 3(50) = 150
Thus it contains 150 grams of zinc