Answer:
Wanda brought 9 carrot sticks.
Step-by-step explanation:
- Convert 30% to a decimal by removing the percent sign and dividing by 100: 30 ÷ 100 = 0.30
- Substitute 0.30 for 30% in the equation: 30% x 30 = Y becomes 0.30 * 30 = Y
- Do the math: 0.30 x 30 = 9
- Y = 9
- So 30% of 30 is 9
- Double check your answer with the original question: How many carrot sticks did Wanda bring? Multiply 0.30 x 30 = 9
Answer:
The perimeter is 43.6 cm
Step-by-step explanation:
In this question, we are tasked with calculating the perimeter of the sector.
Firstly, we define what a sector is. A sector is part of a circle which is is blinded by two radii and an arc. Hence we say a sector contains two radii.
Thus, to calculate the perimeter of the sector, we need the length of the arc added to 2 * length of the radius
Let’s calculate the length of the arc.
Mathematically, this is theta/360 * 2 * pi * r
where theta is the angle subtended at the middle of the circle which is 135 according to the question, and our radius is 10cm
Thus, we have
135/360 * 2 * 22/7 * 10 = 23.57 cm
Adding two radii to this, we have;
23.57 + 2(10)
= 23.57 + 20 = 43.57 = 43.6 cm to 1 decimal place
About 400 marbles. You simply set up a proportion and solve it as I did in the photo attached.
SOLVING WITH THESE VALUES:
x=2
y=3
——————————————————
The answer is 1,729 when x=2 and y=3
Work is in the pictures below :)
<em><u>Picture 1</u></em>: Solved where x=2 and y=3
<em><u>Picture 2</u></em>: Solved without plugging in values for x and y