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Hunter-Best [27]
4 years ago
12

10x + 10y = −10 9x + 10y = −18

Mathematics
2 answers:
Anna71 [15]4 years ago
6 0

Answer:

(8,-9)

Step-by-step explanation:

andreev551 [17]4 years ago
5 0

Answer:

Step-by-step explanation:

10x+10y=-10

9x+10y=18

= 10x+10y=-10

-9x-10y=18

= x=8

step two is to find y:

10x+10y=-10

10(8)+10y=-10

80+10y=-10

10y=-90

y=-9

your answer:

(x,y)= (8,-9)

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Find the percent increase. Round to the nearest percent. From 11 friends to 18 friends
ozzi

Answer:

its 63.6% is the closest but rounded up its 64%

Step-by-step explanation:

5 0
3 years ago
In​ 1923, a certain country underwent one of the worst periods in history of​ hyperinflation, which is extraordinarily large inf
alexgriva [62]

Answer: 3.498 * 10^26 % ; 16.9% per day

Step-by-step explanation:

Inflation rate = 11,000 per month

Hence, price after a month :

Final price = initial price (1 + rate)

Final price = 1 + 11000/100

Final price = (1 + 110) * initial price

Final price = 111 times the initial price

Hence inflation over the 12 month period :

(111)^12 = 3.498 * 10^24

(3.498 * 10^24) * 100% = 3.498 * 10^26 %

The daily inflation rate :

Number of days = 30

30th root of 3.498 * 10^24 = 1.169

(1.169 - 1) = 0.169

0.169 * 100% = 16.9% per day

5 0
3 years ago
Which of the following expressions are equivalent to 312?
lord [1]

Answer:

3(4+3^2)×8

Step-by-step explanation:

Evaluate the power

3(4+9)×8

Add the numbers 3×13×8

Calcuate the product and it will be 312

So the expression 3×(4+3^2)×8 are equivalent to 312

Hope this helpsʕ•ᴥ•ʔ

4 0
3 years ago
Identifying Perfect Squares
Vladimir [108]

Answer:

72- no

36-yes

8- no

16- yes

81-yes

64-yes

48-no

Step-by-step explanation:

3 0
3 years ago
Mr. Warren Buffett invested $20 000. Part of it he put in the bank at 5% interest. Part of it he invested in
netineya [11]

Answer:

Vehicle one he put $10000

Vehicle two he put $1000

Step-by-step explanation:

Interest= PRT/100

Interested= x

P1 +P2= $20000

X1+x2= $1200

R1= 5%

R2= 7%

(P1*5*1)/100= X1

5p1=100 X1.....

P1= 20X1...

(P2*7*1)/100= X2

7p2= 100X2

P2= 100/7 X2

P1 +P2= $20000

20X1 + 100/7 X2= 20000

7X1 +5x2= 7000...equation one

X1+x2= 1200 ....equation two

Multiplying equation two with 7

7X1 +7X2= 8400

7X1 +5x2= 7000

Solving simultaneously

2X2=1400

X2= 700

P2= 100/7 X2

P2= 100/7 (700)

P2= 10000

But X1+x2= $1200

X1= 1200-700

X1= 500

P1= 20X1

P1= 20(500)

P1= 10000

Vehicle one he put $10000

Vehicle two he put $1000

7 0
3 years ago
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