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4 years ago

Does it seem plausible that employment has a normal distribution for each gender

Mathematics

1 answer:

Debora [2.8K]4 years ago

6 0

yes it is reasonable that employment has a normal distribution for each gender

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Jessica and Martha each have a bag of cookies with unequal quantities. They have 30 cookies total between the two of them. Each

Basile [38]

Answer:

Part 1) The inequality that describes the relationship between the number of cookies each one of them has is $x^{2} -30x+224\geq 0$

Part 2) Jessica has at least 2 cookies more than Martha

Step-by-step explanation:

Part 1) Find the inequality that describes the relationship between the number of cookies each one of them has

Let

x----> the number of cookies when Jessica started

30-x ----> the number of cookies when Martha started

we know that

Each of them ate 6 cookies from their bag

The cookies left in each bag are

(x-6) ----> Jessica

and (30-x-6)=(24-x) ---> Martha

The product is equal to (x-6)(24-x)

The product of the number of cookies left in each bag is not more than 80.

$(x-6)(24-x)\leq 80\\ \\24x-x^{2}-144+6x\leq 80\\ \\-x^{2} +30x-144-80\leq 0\\ \\-x^{2} +30x-224\leq 0$

Multiply by -1 both sides

$x^{2} -30x+224\geq 0$

Part 2) Solve the quadratic equation

$x^{2} -30x+224\geq 0$

Solve by graphing

The solution is x=16 cookies

(30-x)=30-16=14 cookies

therefore

The number of cookies when Jessica started was 16 cookies

The number of cookies when Martha started was 14 cookies

The number of cookies left in each bag is equal to

Jessica

16-6=10 cookies

Martha

14-6=8 cookies

Jessica has at least 2 cookies more than Martha

7 0

3 years ago

Read 2 more answers

If x:6 as 3:9 then x is equal to<br> pleas help!!

natima [27]

Answer:

Step-by-step explanation:

x/6 = 3/9

cross multiply

9x = 18

divide 9 on both sides

x= 2

7 0

3 years ago

Daniel went to the baseball game with $35 to spend after he bout his ticket. He bought 4 hot dogs for $1.75,2$5 .he spends the r

seraphim [82]

Answer:

9.3

Step-by-step explanation:

35-7=28

28 divided by 3 = 9.3

Or $9 and 3 cents

4 0

3 years ago

Kelly is running home from the park. The function shown gives her distance, D, in miles, from home after T minutes.

Elena-2011 [213]

Answer:

.15 represents how many miles Kelly runs a minute.

3 0

3 years ago

Please help asap and explain!! i give brainliests!!

Snezhnost [94]

Change of y over change of x
2.5 - 1.25 = 1.25
4 - 2 = 2
1.25/2 = .625
Hope this helps!
The answer is .625 if theres any confusion

8 0

3 years ago