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Leviafan [203]
3 years ago
13

How many solutions does this system have 2x + y = -1 -4x - 2y = -5

Mathematics
1 answer:
postnew [5]3 years ago
6 0
5. There’s your answer buddy
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Need help please answer this question
Aleks04 [339]

Answer:

C

Step-by-step explanation:

Substitute the given values for x and y into the expression

5 × (\frac{60}{6(5)}) - 1

= 5 × (\frac{60}{30}) - 1

= (5 × 2)  - 1

= 10 - 1

= 9 → C

4 0
3 years ago
The nth term of a sequence is 2n2 + 1 The nth term of a different sequence is 65 - 2n2. Show that there is only 1 number that is
HACTEHA [7]

Answer:

The only common term is 33.

Step-by-step explanation:

We are given the following in the question:

Sequence 1:

n^{th}\text{ term: } 2n^2 + 1

Sequence 2:

n^{th}\text{ term: } 65 - 2n^2

Equating the two terms, we get,

2n^2 + 1 = 65 - 2n^2\\4n^2 = 64\\\\n^2 = \dfrac{64}{4}\\\\n^2 = 16\\n = \pm 4

Since, n cannot take a negative value, we get n = 4.

Thus, there is only 1 common term both the series have for n = 4.

Common term:

2(4)^2+ 1 - 65-2(4)^2 = 33

Thus, the only common term is 33.

8 0
3 years ago
A choreographer uses a number line to position dancers for a ballet. Dancers A and B
kenny6666 [7]
First we will calculate the distance AB. 
AB=B-A=23-5=18.
If C is 5/9 of the distance, mathematically speaking that means:
C= \frac{5}{6} *AB= \frac{5}{6} *18=15.
R: The coordonate of C is 15.
5 0
3 years ago
Read 2 more answers
Carl wants to buy a television that cost $500 including taxes to pay for the television he will use a payment plan that requires
ozzi

Answer:

41%

Step-by-step explanation:

Given the cash price is $500, the hire purchase price is calculated by summing the installment and down-payment:

Hire \ Purchase \ Price=Installments +Downpayments\\\\=8\times 72.50+125\\\\=705

#Percentage increase in price is the difference between the hire purchase price and list price as a percentage of the list price:

\bigtriangleup Price=705-500\\\\=205\\\\\%\bigtriangleup Price=\frac{\bigtriangleup Price}{500}\times 100\%\\\\\\=\frac{205}{500}\times100\%\\\\=41\%

Hence, the % increase in price is 41%

7 0
3 years ago
X+6 for X=7<br><br> P/5 for p=30<br><br> 2x+y for x=5, y=4<br><br> Please Evaluate these.
AnnyKZ [126]

Answer:

13

6

14

Step-by-step explanation:

x+6=7+6=13

p/5=30/5=6

2x+y=2(5)+4=10+4=14

5 0
3 years ago
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