Can someone clarify if i'm right? It says i'm wrong but i'm pretty sure i'm right unless i'm missing something...I did the substitution method, was I meant to do the elimination?
I did the elimination method and it said 4 nickels which in turn gives me 52 pennies.
Answers
There are 32 pennies and 24 nickels in jar
Solution:
Let "n" be the number of nickels
Let "p" be the number of pennies
1 penny = 0.01 dollar
1 nickel = 0.05 dollar
There are 56 coins in the jar in all
Therefore,
number of nickels + number of pennies = 56
n + p = 56 ----------- eqn 1
The total value of coins is $ 1.52
Thus we frame a equation as:
number of nickels x 0.05 + number of pennies x 0.01 = 1.52
0.05n + 0.01p = 1.52 -------- eqn 2
Let us solve eqn 1 and eqn 2
From eqn 1,
n = 56 - p ------ eqn 3
Substitute eqn 3 in eqn 2
0.05(56 - p) + 0.01p = 1.52
2.8 - 0.05p + 0.01p = 1.52
0.04p = 2.8 - 1.52
0.04p = 1.28
Divide both sides by 0.04
p = 32
Substitute p = 32 in eqn 3
n = 56 - 32
n = 24
Thus there are 32 pennies and 24 nickels in jar
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c. $3.45
d. $8.05
SHOW YOUR WORK PLEASE!!!
Answers
Answer:
The price after holiday is c. $3,45
Step-by-step explanation:
Patriotic banner cost $5,75
Mark down (discount) is 40%
So, the discount is $5.75 x 0,40= $2,3
The new price is the price before holiday P -
discount D
P¹= P-D
P¹=5,75-2,3
P¹= 3,45
5.75 * .6 = $3.45
C. the banner cost $3.45
A)-96, -288, -864
B) -64, -128, -256
C) -64, -288, -256
D) -36, -40, -44
Answers
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Answers
A number 8.984 will be rounded up to 9.
What is rounding off the numbers?
When a number is rounded off, its value is maintained but is brought closer to the next number, simplifying the number. For entire numbers as well as decimals at different places of hundreds, tens, tenths, etc., it is done.
A number can be rounded off to its lower value if the number after the decimal is between 0 and 4. The number will be rounded off to its higher value if the number after it is between 5 and 9.
The given number is 8.984 and it will be rounded up to the number 9.
The number 8.984 will be rounded up to 9.
To know more about rounding off numbers follow
#SPJ2
Answers
Answers
12.5 multiplie dy 6 equals 75
100 plus 75 equals 175
which gives you the exact amount of money you need to use to buy 10 acres of land on mars.
so the answer is 6 months
Answers
2). Subtract 'x' from each side.
3). Subtract 3 from each side.
And there you'll have it.