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bazaltina [42]
3 years ago
12

in a group of 120 people,90 of them are 30 years old or older. Everyone else in the group is younger than 20 years old. If a per

son is selected at random, what is the probability the person is less than 20 years old
Mathematics
1 answer:
Ksju [112]3 years ago
3 0
36% chance of the person being less than 20 years okd
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a cake divided into 10 equal slices.kim ate 3/5 of 1/2 of cake. what part of the whole cake did kim ate? ​
joja [24]

Answer:

3/10 of the whole cake

Step-by-step explanation:

When you divide a cake in halve you get 5 pieces on each side, if Kim ate 3/5 of 1/2 of the cake, then she ate 3 pieces, so she ate 3/10 of the cake, and other way to figure this out is multiplying the two fractions, 3/5 x 1/2 = 3/10

8 0
3 years ago
7. For homework Javier has to solve the equation below.
cricket20 [7]

Answer:

C 10⁴

Step-by-step explanation:

The given equation is

7.75n = 77500

Javier has to solve for n

He can multiply through by 100 to get;

775n = 7750000

He can now divide through by 775 to obtain:

n =  \frac{7750000}{775}

He can now easily simplify to get:

n = 10000

We rewrite as a power to get:

n =  {10}^{4}

7 0
3 years ago
Someone please show me how to do this
Degger [83]
The 1 represents the y intercept so a point is (0,1). To find other points, plug in values for x. For example, plus in x and you get a y value of 2. So just plot a number of points and then connect them with a curved line( called a parabola).
8 0
3 years ago
Read 2 more answers
Convert 88 square yards to square meters (to the nearest tenth).
lys-0071 [83]
The answer would be C. 73.6. If you use the correct math without rounding it would be 73.5792. Hope this helps!
6 0
3 years ago
Read 2 more answers
If Amber pays $55 for a pair of shoes, what would the discount be if the original price for Amber's shoes is $72.00?
baherus [9]
Answer: 76%
Explanation: 55/72.00 x __/100= 5,500
5,500 divided by 72.00= 76.3888889
8 0
3 years ago
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