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dusya [7]
3 years ago
13

A science class has 7 girls and 3 boys in the seventh grade and 4 girls and 4 boys in the eighth grade. The teacher randomly sel

ects a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she selects are both girls
Mathematics
1 answer:
timurjin [86]3 years ago
4 0

Answer:

63% chance to pick both girls instead of boys

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What is the formula to find the volume of the solid ?
marysya [2.9K]

Answer:

V = l x w x h

Step-by-step explanation:

4 0
3 years ago
A circle with radius of 3cm sits inside a 8 cm x 7cm rectangle what is the area of the shaded region?
Temka [501]

Answer:

You have to say which one is the shaded region the circle or the rectangle

Step-by-step explanation:

5 0
3 years ago
rows of chairs are set out for a wedding. there are 6 chairs in the first row, 14 chairs in the second row, and 22 chairs in the
fomenos
This is just a simple multi-step math problem. The first step to finding the answer is to find out the pattern of the chairs. So, we would take two of the numbers, 14 and 6, and subtract 14 from 6.

14 - 6 = 8

So now we know that the difference between the first to rows is 8 chairs. To double check this pattern you would simply subtract 14 from 22.

22 - 14 = 8

Okay, so now we are sure that the pattern is by simply adding 8 to the number of chairs in the row before. Now that we have a pattern all set, there are two different ways to solve this problem, yet I am going to use the longer method. You would simply start from 6 and keep adding on 8's until you would reach the 7th row like so:

6 + 8 = 14
14 + 8 = 22
22 + 8 = 30
30 + 8 = 38
38 + 8 = 46
46 + 8 = 54

So as you can see, the total number of chairs would be 54. This may take a little longer to do, as I happened to use the longer method for this problem. Yet I hope this still helped :)!
3 0
3 years ago
Is 3/4 less than or greater than 8/12
jonny [76]
3/4 is greater than 8/12. Multiply 3 & 4 by 3 to get a common denominator.
6 0
3 years ago
Read 2 more answers
What is the measure of angle Z?
Tanya [424]

Answer:

C. 61

Step-by-step explanation:

add angles s and r together to find the sum of the line, 78+49= 119

then, subtract 180 with 119 which equals 61. you subtract 180 because thats the sum of the 3 degrees of a tirangle

5 0
3 years ago
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