Find the amount paid for the loan. $4800 at 9.9% for 4 years note: its not 1900.8

Solve system using eliminations 2x+4y=22 2x-2y=-8

KATRIN_1 [288]

$2x+4y=22 \\
2x-2y=-8 \ \ \ |\times (-1) \\ \\
2x+4y=22 \\
\underline{-2x+2y=8} \\
2x-2x+4y+2y=22+8 \\
6y=30 \ \ \ |\div 6 \\
y=5 \\ \\
2x-2y=-8 \\
2x-2 \times 5=-8 \\
2x-10=-8 \ \ \ |+10 \\
2x=2 \ \ \ |\div 2 \\
x=1 \\ \\
\boxed{(x,y)=(1,5)}$

5 0

3 years ago

Question 19 of 25

asambeis [7]

It is going to b (4.12)

4 0

2 years ago

Mrs. Smith took her family and friends to the movies. There was a total of 15 people. Child tickets cost 5$ and adult tickets co

SCORPION-xisa [38]

Answer: children= 8, adult= 7

Step-by-step explanation:

Let the number of children be x

Let the number of adults be y

There was a total of 15 people. This can be represented as:

x + y = 15 .......... equation i

Child tickets cost 5$ and adult tickets cost 10$. She then spent a total of 110$. This can be represented as:

5x + 10y = 110 ............. equation ii

Combine both equations

x + y = 15 ........... equation i

5x + 10y = 110 .......... equation ii

Multiply equation I by 5

Multiply equation ii by 1

5(x + y = 15)

1(5x + 10y = 110)

5x + 5y = 75 .......... equation iii

5x + 10y = 110 ........ equation iv

Subtract equation iv from iii

-5y = -35

y = 35/5

y = 7

Number of adults is 7

Since x + y = 15

x = 15 - 7

x = 8

Number of children is 8

3 0

3 years ago

Of the following approximate conversions of Celsius into Fahrenheit, which is most accurate?

kirill [66]

Answer:

option (b) is more accurate.

Step-by-step explanation:

Given some temperature in °C and °F.

We have to check out of given option which is most accurate conversion.

We check of conversion one by one ,

We know the relationship between the temperature in degrees Celsius, C, and degrees Fahrenheit is

$F=\frac{9}{5}C+32$

1) 24°C and 75.9°F

We substitute the values of degree Celsius and find for degree Fahrenheit.

$F=\frac{9}{5}C+32$

$F=\frac{9}{5}(24)+32$

$F=75.2$

2) 2°C and 35.8°F

We substitute the values of degree Celsius and find for degree Fahrenheit.

$F=\frac{9}{5}C+32$

$F=\frac{9}{5}(2)+32$

$F=35.6$

3) 34°C and 92.7°F

We substitute the values of degree Celsius and find for degree Fahrenheit.

$F=\frac{9}{5}C+32$

$F=\frac{9}{5}(34)+32$

$F=93.2$

4) 13°C and 55°F

We substitute the values of degree Celsius and find for degree Fahrenheit.

$F=\frac{9}{5}C+32$

$F=\frac{9}{5}(13)+32$

$F=55.4$

Thus, out of given options , option (b) is more accurate.

6 0

3 years ago

PLZ HELP

neonofarm [45]

There are 161 pieces of candy corn

4 0

2 years ago