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kirill [66]
3 years ago
15

Suppose that 5% of the time Todd attends a concert twice a month, 40% of the time he attends a concert once a month, and 55% of

the time he doesn't attend a concert at all in a given month. What is the expected value for the number of times Todd attends a concert during a month?
Mathematics
1 answer:
alexira [117]3 years ago
3 0
it’s the right answer anyways hope u pass all your classes thanks bye now purrr 1245/4849
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isabella has found that she stays the most fit by running variouse dinstances and terrains through out the week. On mondays she
den301095 [7]
Monday . . . . . 2.5 miles
Tuesday . . . . . 4.6
Thursday . . . . 6.75
Saturday . . . . . 4.8

Total = 18.65 miles
Days per week = 4

Average miles per running day = 18.65/4 = 4.6625 miles

Rounded to the nearest 0.01 = 4.66 miles per running day
6 0
3 years ago
The coffee jug hold four times as much as the milk jug everyone has the same sized cup but each person likes different amounts o
svetlana [45]
We will assume that each of their cups holds exactly 1 cup of liquid.  Let <em>m</em> represent milk and <em>c</em> represent coffee.
Jane = 1/2<em>m</em> + 1/2<em>c</em> to represent 1/2 milk and 1/2 coffee
Jean, June, and Joan = 3(1/4<em>m</em> + 3/4<em>c</em>) [they all 3 like the same ratio, so multiply the expression by 3], to represent 1/4 milk and 3/4 coffee
Ian = 1<em>c </em>(since he likes black coffee, his entire 1-cup dish of coffee will be coffee)
Adding these together we have:
1/2<em>m</em> + 1/2<em>c</em> + 3(1/4<em>m</em> + 3/4<em>c</em>) + 1<em>c</em>
= 1/2<em>m</em> + 1/2<em>c</em> + 3/4<em>m</em> + 9/4<em>c</em> + 1<em>c</em>
Find a common denominator:
= 2/4<em>m</em> + 2/4<em>c</em> + 3/4<em>m</em> + 9/4<em>c</em> + 1<em>c</em>
Convert the 1 whole to a fraction:
= 2/4<em>m</em> + 2/4<em>c</em> + 3/4<em /><em>m</em> + 9/4<em>c</em> + 4/4<em>c</em>
Combine your <em>m</em>'s:
= 5/4<em>m</em> + 2/4<em>c</em> + 9/4<em>c</em> + 4/4<em>c</em>
Combine your <em>c</em>'s:
= 5/4<em>m</em> + 15/4<em>c</em>
We know there is 4 times as much coffee as milk.  Looking at the two fractions we have left, we can see that 15/4<em /> = 3(5/4).  We would expect to see 4(5/4), since there is 4 times as much coffee.  That means we have 5/4 or 1 1/4 of the liquid left.
7 0
3 years ago
Mika jumped rope for 55 minutes and burned 98 calories. How many calories could she burn in 15 minutes
Troyanec [42]

Answer: Mika burned 26.7 calories in 15 minutes

Step-by-step explanation: divide 55 by 98 to see how much she burns each minute then multiply that number by 15

5 0
3 years ago
Somebody help me please? im timed!
Shkiper50 [21]

We know that

Domain:

It is all possible values of x for which any function is defined

we are given function

f(x)=-(x+3)(x-1)

we can see that our function goes from left to right side

so, domain will be all real numbers

Range:

Range is all possible values of y

we can see that

largest y-value is 4

smallest y-value is -inf ...because it keeps going downward

so, range is

(-\infty , 4]

so, option-C...........Answer

8 0
3 years ago
Rewrite the fraction 2/7 as a division expression with the same numbers.
aleksandrvk [35]

Answer:

EZ. Btw you kinda already did it. 2/7 is a division problem. Another way is 2 divided by 7

Step-by-step explanation:

7 0
2 years ago
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