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padilas [110]
3 years ago
14

Jack spends 1 1/2 times as long on his homework as Jill.

Mathematics
2 answers:
Mashcka [7]3 years ago
6 0

Answer:

12  3/4

Step-by-step explanation:

8.5 times 1 is 8.5

and 8.5 times .5 is 4.25

so 8.5 plus 4.25 is 12.75 or 12  3/4

Minchanka [31]3 years ago
4 0

Answer:

12 3/4 hours

Step-by-step explanation:

Jack spends 1 1/2 times as long on his homework as Jill .

Jill spends 8 1/2 in doing his home work .

Time spent by jack in doing his homework is jacks time multiplied by Jill’s

That’s

1 1/2 x 8 1/2

Change to improper fractions.

We have,

3/2 x 17/2

Multiply through

51/4 = 12 3/4

Jack spends 12 3/4 hours in doing his homework

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PLEASE HELP!!! here are two different strategies to find the new price of a hat after a discount of 40%. The hat was originally
Yakvenalex [24]

Answer:

Step-by-step explanation:

Method 1: Calculate 40% discount on original price, then subtract discount from original price.

Amount of discount = 40% of $30

= 0.40 × $30

= $12

New price = $30 - $12 = $18

Method 2:

New price = (100% - discount percentage) of original price

= 60% of original price

= 0.60 × $30

= $18

6 0
3 years ago
Which of the following equations is of the parabola whose vertex is at (2, 3), axis of symmetry parallel to the y-axis and p = 4
lora16 [44]

Answer:

option A.) y-3 = 1/16 (x-2)^2

Step-by-step explanation:

we know that

If the axis of symmetry is parallel to the y-axis, then we have a vertical parabola

The equation of a vertical parabola is equal to

4p(y-k)=(x-h)^{2}

where

(h,k) is the vertex

In this problem we have

(h,k)=(2,3)

p=4

substitute

4(4)(y-3)=4(4)(x-2)^{2}

16(y-3)=(x-2)^{2}

(y-3)=(1/16)(x-2)^{2}

8 0
3 years ago
If the frequency of hba homozygotes is 0.1 what is the value of p2
Angelina_Jolie [31]

we know that

p^2 is the the frequency of hba homozygote

we are given

frequency of hba homozygotes is 0.1

so,

p^2 =frequency of hba homozygotes

we can plug values

and we get

p^2=0.1..............Answer

3 0
3 years ago
Need help ASAP with this question please
Assoli18 [71]

Answer:

4th option, 5 5/6

Step-by-step explanation:

8 1/2 - 2 2/3

= 17/2 - 8/3

= (51-16)/6

= 35/6

= 5 5/6

Answered by GAUTHMATH

6 0
3 years ago
Y = 9 - 1 <br> What is this ?
lesya692 [45]
Y=8

your teacher is introducing algebra
7 0
3 years ago
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