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Inessa [10]
3 years ago
10

Janae solved the equation 3.67 = c − 2.13 , and found the value for c. Janae's solution was c =1.54 Do you agree or disagree wit

h her solution. Explain. Show your work. plzzz help me ill give yo a brainlyiest
Mathematics
2 answers:
marysya [2.9K]3 years ago
8 0

Answer:

Solution;

given equation : 3.67 = c - 2.13

On solving equation, we get

c = 3.67 +2.13

c = 5.8

Hence, Janae solution is incorrect. So I disagree.

suter [353]3 years ago
8 0

Answer: No because the answer is c =5.8 or 5.80

Step-by-step explanation:

Add 2.13 to both sides. 3.67 + 2.13 = 5.80

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7 hours + 6 hours + 6 hours
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=111 minutes
=1 hour 51 minutes

19 hours + 1 hour and 51 minutes is 20 hours and 51 minutes. This is the total time.

Average time = total time/number of deliveries

(20 and 51/60) divided by 3
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The communtative property chages the grouping
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The shape of Joy’s room is a rectangle 540 cm long by 250 cm wide.
UNO [17]
<h2><u>Question</u><u>:</u><u>-</u></h2>

The shape of Joy’s room is a rectangle 540 cm long by 250 cm wide.

a. Work out the area of his room in Square meters.

b. How much does he pay to buy flooring for his room where flooring costs $ 40 per square meter

<h2><u>Question</u><u> </u><u>No</u><u>.</u><u> </u><u>a</u></h2>

Work out the area of his room in Square meters.

<h3><u>Given</u><u>:</u><u>-</u></h3>

  • Length of the room 540 cm = 540/100 m = 5.4m
  • Breadth of the room 250cm = 250/100 m = 2.5m

<h3><u>To</u><u> </u><u>Find</u><u>:</u><u>-</u></h3>

  • Area of the room.

<h3><u>Solution</u>:-</h3>

We know that:-

Area of a rectangle = (length × breadth)sq.units

Therefore,

Area of the rectangular room = (5.4 × 2.5) square meters

=> Area of the rectangular room = 13.5 square meters.

<h3><u>Answer</u><u>:</u><u>-</u></h3>

Area of his room is 13.5 square meters.

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How much does he pay to buy flooring for his room where flooring costs $ 40 per square meter

<h3><u>Given</u><u>:</u><u>-</u></h3>

  • Cost in per square meter = $40
  • Area of the room = 13.5 square meters (From question a)

<h3><u>To</u><u> </u><u>Find</u><u>:</u><u>-</u></h3>

  • Total cost of flooring

<h3><u>Solution</u><u>:</u><u>-</u></h3>

Flooring cost in 1 squre meter = $40

Flooring cost in 13.5 square meters = $(40 × 13.5) = $540

<h3><u>Answer</u><u>:</u><u>-</u></h3>

He pays $540 to buy flooring for his room.

<h2>_______________________</h2>

Hope this helps you!! (^_^)

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Don't need 20 characters
4 0
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AMSWER ASAP PLEASE PLEASE PLEASE
Marysya12 [62]

Answer:

(2,14)

Step-by-step explanation:

so i solved this with substitution but there are other methods to solve this!

equation 1 : y = -x + 16
equation 2 : y = x + 12

solve for y in equation 1 !!
y = -x + 16
(add x on both sides)
y + x = 16
(subtract y on both sides)
x = -y + 16

equation 1 now equals : x = -y + 16

substitute equation 1 into equation 2 :)

y = (-y + 16) + 12
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now to solve for x you can insert y !
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i'm using equation 2 :
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therefore, the answer is (2, 14).

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