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34kurt
3 years ago
14

Use the linear combination method to solve this system of equations. What is the value of 3x+7y=3 X-7y=1

Mathematics
1 answer:
Allisa [31]3 years ago
4 0

Answer:

look at the picture shown

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Ticket
NARA [144]

Answer:

The rearrangement can be 45, 987 , 310

Step-by-step explanation:

Here, we want to rearrange the number such that 9 is worth 10 times as what it is worth presently

The value of 9 presently is 90,000

So 10 times as worth will be 10 * 90,000 = 900,000

So we can have the new arrangement as;

45, 987, 310

3 0
3 years ago
Lisa wants to frame her little brothers drawing as a gift to her mother.the rectangle drawing is 43.5 centimeters by 934 millime
konstantin123 [22]

Answer:

Lisa will need 273.8\ cm of wood framing

Step-by-step explanation:

we know that

The perimeter of rectangle is equal to

P=2(b+h)

In this problem we have

b=43.5\ cm

h=934\ mm

convert to cm

Remember that  1\ cm=10\ mm

h=934\ mm=934/10=93.4\ cm

substitute the values and solve the perimeter

P=2(43.5+93.4)=273.8\ cm

7 0
3 years ago
A boat costs $19,200 and decreases in value by 12% per year. How much will the
fomenos
Find 10% of $19,200 = 1,920
Find 2% of $1,920 = 384
12% = $2,304
19,200 - 2,304 = 16,896 (year 1)
Repeat this until you have your 5th year :)
4 0
3 years ago
Complete the work shown to answer the question.
harkovskaia [24]

Answer:

Since 7 and 11 are both rational the sum and the difference are rational .

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
an ice cream shop manager lowered the price for a single scoop of ice cream from 2.50 to 2.00 what is the precent of decrease in
igomit [66]
2.50-2.00=0.5
2.50/0.5= 5 = 100%
2.00/0.5=4 = 80%
100-80= 20%
6 0
2 years ago
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