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viva [34]
3 years ago
15

The questions on a test consist of 10 multiple choices, 3 essays, and 9 free responses. If the questions are ordered randomly, w

hat is the probability that the first question is a free response?
• Give your answer as a fraction
Mathematics
1 answer:
stepladder [879]3 years ago
3 0

Answer:

\frac{9}{22}

Step-by-step explanation:

add all qestions together 10+3+9=22

and put the number of free responces on top of the total number of qestions

\frac{9}{22\\}

and you cant simplify it so its in its simplist form

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Waffles are made with 2 1/2 cups water and 1 1/2 cups milk. What is the ratio of water to milk?
WITCHER [35]

Answer:

5 : 3

Step-by-step explanation:

Water: 2.5 cups

Milk: 1.5 cups

Water/Milk: 2.5/1.5 = 5/2 / 3/2 = 5/2 * 2/3 = 5/3

Hope this helps :)

3 0
4 years ago
Please answer quick I’ll mark you brainliest pls the quarter ends at 12:00
Gala2k [10]

Answer:

46/100

Step-by-step explanation:

also what grade is this

5 0
3 years ago
The radius of a circle is 2 centimeters. What is the circles circumference?
Salsk061 [2.6K]

Answer: 4π cm or 12.56 cm

Step-by-step explanation: To find the circumference of this circle, start with the formula for the circumference of a circle which is C = 2πr.

Since the radius is 2 centimeters, we can

plug in 2 centimeters for <em>r</em> in the formula.

So we have (2)(π)(2 cm) which is equal to 4π cm.

So the circumference of this circle is 4π cm.

Remember that π is approximately equal to 22/7 or 3.14 so we can estimate the value of the circumference by plugging in 3.14 for π.

So we have (4)(3.14) which is equal to 12.56.

So the circumference of the circle is

approximately equal to 12.56 cm.

5 0
3 years ago
What is the area of the two-dimensional cross section that is parallel to face ABC ?
Umnica [9.8K]

Answer:

The area of the two-dimensional cross section is 30\ ft^{2}

Step-by-step explanation:

we know that

The two-dimensional cross section that is parallel to face ABC is a triangle congruent with the triangle ABC

Therefore

Calculate the area of triangle ABC

A=\frac{1}{2}(BC)(AB)

we have that

Triangles ABC and DEF are congruent

so

BC=EF=12\ ft

AB=5\ ft

substitute

A=\frac{1}{2}(12)(5)=30\ ft^{2}

8 0
3 years ago
Justify each step used to simplify the expression 3x+2y-2x+2=3x-2x+2y+2
Lynna [10]
3x+2y-2x+2=3x-2x+2y+2\ \ \ \ \ | combine\ like\ terms\\\\&#10;x+2y+2=x+2y+2\\\\&#10;0=0\\\\&#10; There\ are\ infinitely\ many\ solutions.
5 0
4 years ago
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