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sweet-ann [11.9K]
3 years ago
15

Kim works 4 hours more each day than jill does, and jack works 2 hours less each day

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
6 0
Where's the rest of the question
marusya05 [52]3 years ago
4 0

Answer:

The answer is 2(x+3)=3 * 2(x-1)-2x

Step-by-step explanation:

full question:

Kim works 3 hours more each day than Jill does, and Jack works 1 hour less each day than Jill does. Over 2 days, the number of hours Kim works is equal to the difference of 3 times the number of hours Jack works and the number of hours Jill works. How many hours does each person work each day? Let x be the number of hours Jill works in one day.

 2(x+3)=3 * 2(x-1)-2x

2(x+3)=6(x-1)-2x

2x+6=4x-6

2x+6-6=4x-6-6

2x=4x-12

-2x=-12

-2x/-2=-12/-2

x=6

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In a child's bank are 11 coins that have a value of S1.85. The coins are either
Karo-lina-s [1.5K]

Answer:

The child has 6 dimes and 5 quarters.

Step-by-step explanation:

Let q and d represent the number of quarters and of dimes respectively.

Then q + d = 11 (Equation A), and ($0.25/quarter)q + ($0.10/dime)d = $1.85 (Equation B).

Multiply the 2nd equation by 100 to remove the decimal fractions:

25q + 10d = 185 (Equation C)

Now multiply the 1st equation by -10 to obtain -10q - 10d = -110 (Equation D), and combine this result with Equation C:

-10q - 10d = -110

25q + 10d = 185

--------------------------

15q         = 75, and so q = 75/15 = 5.

According to Equation A, q + d = 11.  Replacing q with 5, we get:

5 + d = 11, and so d = 6.

The child has 6 dimes and 5 quarters.

4 0
3 years ago
Please answer this thanks
Arlecino [84]

Answer:

$66.24

Step-by-step explanation:

TIP:

55.20 x 0.15 = 8.28

TAX:

55.20 x 0.05 = 2.76

Answer:

55.20 + 8.28 + 2.76 = 66.24

(Also always tip your server 20% unless they were bad)

7 0
2 years ago
What is the value of y2 – x2 when y = 6 and x = 5?
Papessa [141]

Answer:

y^2 - x^2 = 11

Step-by-step explanation:

y^2 - x^2 = ?

Substitute.

y = 6

x = 5

Becomes:

6^2 - 5^2 = ?

Solve.

6^2 = 6 x 6

6 x 6 = 36

5^2 = 5 x 5

5 x 5 = 25

36 - 25 = 11

8 0
2 years ago
A scale drawing of Julie's living room is shown below:
stealth61 [152]

Answer:

length = 16 feet

width = 12 feet

Step-by-step explanation:

divide the length and width by 2 so you get 3 and 4. then you proceed to Multiply both by 4 and you get 12 and 16

6÷2 = 3

8÷2 = 4

3x4= 12

4x4 = 16

4 0
2 years ago
Number sense $250/10
Tanya [424]

Answer:

$25

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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