Answer:
Slope is -3
y-intercept is -3 and equation is y=-3x-3
The area is equal to 230 CM.
area for rectangle :
area = width times length
area = 7 x 20 = 140CM
area for triangle:
area = 1/2 times base times height
area = 1/2 x 20 x 9 = 90CM
ADD:
140+90 = 230 CM
A is your answer
We can cross multiply using x/70=30%/100
Solving it we get:
100x=2100 (70 times 30)
x=21
So we get a, 21 as your answer.
I hope this helped!
Answer:
69 grams
Step-by-step explanation:
In a certain chemical, the ratio of zinc to copper is 3 to 13. A jar of the chemical contains 299 grams of copper. How many grams of zinc does it contain?
From the question, we know:
Zinc : Copper
3 : 13
We are told that : A jar of the chemical contains 299 grams of copper.
The grams of zinc it contains is:
3/13 = x/299
Cross Multiply
13 x = 3 × 299
x = 3 × 299/13
x = 897/13
x = 69 grams
It contained 69 grams of zinc
OptionD
August
Hope this help u..!!
