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OverLord2011 [107]
3 years ago
13

PLEASE HELP !!!!

Mathematics
1 answer:
My name is Ann [436]3 years ago
7 0
1day=24 hours
10 days=240hours

60mins=1hr
30mins=1/2hr

total is 240hr+21hr+0.5hr=261.5hr


total is 261.5hr
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U/v * 5 where u = 4 and v = 6
Ann [662]
4 divided by 6 times 5 equals 3.333
7 0
2 years ago
Carrie has 40 more nickels than Joan has dimes. They both have the same amount of money. How many coins does each girl have? Wha
LuckyWell [14K]

Answer:

Carrie and Joan have 80 nickels and 40 dimes, respectively, and each one has an amount of money of 4 US dollars.

Step-by-step explanation:

Let be x and y the amounts of nickels and dimes that Carrie and Joan have, as c the total amount of money that both Carrie and Joan have. A nickel is a five cent coin and a dime is a ten cent coin.

The following equations are constructed after a careful reading on statement:

Carrie's amount of money:

0.05\cdot x = c (Eq. 1)

Joan's amount of money:

0.10\cdot y = c (Eq. 2)

Relation between amounts of coins:

x = y+40 (Eq. 3)

First we eliminate c by equalizing (Eq. 1) and (Eq. 2):

0.05\cdot x = 0.10\cdot y

Then, we reduce the resulting formula by (Eq. 3):

0.05\cdot (y+40) = 0.10\cdot y

y+40 = 2\cdot y

y = 40

And rest of variable are now determined:

x = 40+40

x = 80

c = 0.05\cdot (80)

c  = 4

Carrie and Joan have 80 nickels and 40 dimes, respectively, and each one has an amount of money of 4 US dollars.

5 0
3 years ago
Simplify this problem
Helga [31]

Answer:

c^2 +17c -5

Step-by-step explanation:

I like to line them up vertically

2c^2 +7c - 1

- (c^2 -10c+4)

----------------------

Distribute the minus sign

2c^2 +7c - 1

- c^2 +10c-4

----------------------

c^2 +17c -5

8 0
2 years ago
Look inside the screenshot !
Alchen [17]

Answer:

28x+8y+2

Step-by-step explanation:

-6x    -24y      10        34x        32y       -8

4 0
2 years ago
Read 2 more answers
I have no idea what to do with this question
Serjik [45]
Y=mx+b
m being the slope
b being the y intercept
y=-5/1x-5
simplified it would be
y=-5x-5
4 0
3 years ago
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