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shutvik [7]
3 years ago
10

Magen has $1.10 in dimes nickels,and pennies. She has three times as many nickels pas pennies and the number of dimes is two les

s than the number of pennies.how many nickels and pennies do I have
Mathematics
1 answer:
Novosadov [1.4K]3 years ago
7 0
We define the variables:
 x = dimes
 y = nickels
 z = pennies
 We write the system of equations:
 0.1x + 0.05y + 0.01z = 1.10
 y = 3z
 x = z-2
 Solving the system of equations we have:
 x = 3
 y = 15
 z = 5
 Answer:
 The number of nickels and pennies is:
 nickels = 15
 pennies = 5
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After 12 years
3500 * 2 = 7000

after 24 years
7000 * 2 = 14000

14000 : 3500 = 4
so the answer is 24 years
4 0
3 years ago
I will give BRAINLIEST to the correct answer <br> Find the measure of angle 6.
True [87]

Answer:

m∠6 = 116°

Step-by-step explanation:

<u>first find x:</u>

7x - 17 = 2x + 78

subtract 2x from both sides: 5x - 17 = 78

add 17 to both sides: 5x = 95

divide by 5: x = 19

<u>plug x into 7x - 17</u>

7(19) - 17 = 116

∠6 and 7x - 17 are vertical angles and therefore congruent, so m∠6 also = 116°

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2 years ago
david has 212 feet of chain link fencing that he used to make a rectangular garden space in his backyard. the lengthof the garde
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Step-by-step explanation:

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3 years ago
Simplify the following: <br><br> 3to the power of 2 x 3 to the power of 2??
Veseljchak [2.6K]
<h2>Correct question;</h2>

<h2>3 {}^{2}  \times 3 {}^{2}</h2><h2>Required solution;</h2>

<h3>↠ Multiply the terms with the same base by adding their exponents</h3>

<h2>3 {}^{2 + 2}</h2><h3>↠ Add the numbers</h3>

<h2>3 {}^{4}</h2>
  • You can also expand it

After expanding the answer will be 81

expanded \: form \:  = 3 \times 3 \times 3 \times 3 = 81

Hope it helps...

《I own the rights of this answer》

6 0
2 years ago
Read 2 more answers
11/12 - 7/8 in fraction pls help
hjlf

Answer:

1/24

Step-by-step explanation:

We can't subtract two fractions with different denominators. So you need to get a common denominator. To do this, you'll multiply the denominators times each other... but the numerators have to change, too. They get multiplied by the other term's denominator.

So we multiply 11 by 8, and get 88.Then we multiply 7 by 12, and get 84.

Next we give both terms new denominators -- 12 × 8 = 96.

So now our fractions look like this:

88 /96 -84 /96

Step 2

Since our denominators match, we can subtract the numerators.

88 − 84 = 4

So the answer is:

4 /96

Step 3

Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction?

To find out, we try dividing it by 2...

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:            

4 /96 ÷ 2 =2 /48

Let's try dividing by 2 again...

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:

2 /48 ÷ 2 =1 /24

Let's try dividing by 2 again...

No good. 2 is larger than 1. So we're done reducing.                                    There you have it! The final answer is:

11 /12 -7 /8=1 /24

6 0
3 years ago
Read 2 more answers
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