Answer:
Option C
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Answer:
2 cups of walnuts
Step-by-step explanation:
Half cup =1/2
Therfore 4×1/2 is 2
Answer:
The situations 1 and 2 describes an equal difference over an equal interval.
Step-by-step explanation:
1. A sunflower grows at a rate of 3.5 cm per day, for the first 28 days.
Here, the growth of the sunflower per day is uniform i.e. 3.5 cm.
2. After the car is purchased the value of a car depreciates at a rate of 15% per year.
Here, also the the depreciation of the car's value is equal i.e. 15% of initial value per year.
3. During an experiment, the amount of bacteria in a culture triples every two days.
Here, the growth of bacteria count is not equal per day because the bacteria count per day increases exponentially. (Answer)
We know that the angles of a triangle sum to 180°. For ΔABC, this means we have:
(4x-10)+(5x+10)+(7x+20)=180
Combining like terms,
16x+20=180
Subtracting 20 from both sides:
16x=160
Dividing both sides by 16:
x=10
This means ∠A=4*10-10=40-10=30°; ∠B=5*10+10=50+10=60°; and ∠C=7*10+20=70+20=90.
For ΔA'B'C', we have
(2x+10)+(8x-20)+(10x-10)=180
Combining like terms,
20x-20=180
Adding 20 to both sides:
20x=200
Dividing both sides by 20:
x=10
This gives us ∠A'=2*10+10=20+10=30°; ∠B'=8*10-20=80-20=60°; and ∠C'=10*10-10=100-10=90°.
Since the angle are all congruent, ΔABC~ΔA'B'C' by AAA.
