2 years ago

6a+5b=4.54 3a+7b=3.17

Mathematics

1 answer:

Liula [17]2 years ago

6 0

Answer:

7.71

Step-by-step explanation:

add it up

You might be interested in

Donald has a bunch of nickels and dimes in his piggy bank. There are 100 coins in the bank that make a total of $6.60 in change.

brilliants [131]

Answer:

78 nickels and 22 dimes

Step-by-step explanation:

Nickels = n, Dimes = d

Number of coins = 100

n + d = 100

Total sum in the piggy bank = $6.60

5n + 10d = 660

Consider the first equation in the second:

5(100 -d) + 10d = 660
500 - 5d + 10d = 660
5d = 110
d = 110/5
d = 22
n = 100 - 22
n = 78

Answer: nickels 78 and dimes 22

8 0

2 years ago

Read 2 more answers

Recent study of alcohol drinking practices among college students found that the average number of drinks per week consumed was

VashaNatasha [74]

Answer:

Step-by-step explanation:

Here as we can see that minimum drink a person can drink is 0 and is

(3.5-0)/2 =1.75 std deviation away from mean

which reflects that distribution;s right tail is more extended

therefore option A is correct: Distribution is right skewed

4 0

2 years ago

Because of their small size, the sea lion pups are more vulnerable to changes in their environment and are less able to adapt to

Wittaler [7]

? Whats the question? This is a statement??

7 0

2 years ago

12 ft 8 ft 8 ft Find the area of the kite.

mamaluj [8]

I’m not sure but I’m guessing it could be 8 ft

4 0

3 years ago

Read 2 more answers

It costs $22 to enter an amusement park and $0.50 to ride a ride. You have $23. Write an equation that represents the number r o

bogdanovich [222]

Answer:

21.50 + 0.25r = 22.25

Step-by-step explanation:

Thats ur equationnn

8 0

2 years ago