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LUCKY_DIMON [66]
2 years ago
11

The area of a rectangle is equal to its length times its width. If the area of a rectangle

Mathematics
1 answer:
Pepsi [2]2 years ago
8 0

Answer:

d

Step-by-step explanation:

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(3x + 10)<br> (5x-10)<br> A)x=30 B.)*= 28<br> c)x=25 Dx=10
MrMuchimi

Answer:D. x=10

Step-by-step explanation:

4 0
3 years ago
What is the surface area of the prism in square inches?
RUDIKE [14]
<h2>add 60+168+276+304 and you get 810 square inches then add 3+14+8 and equals 835.</h2>
7 0
2 years ago
A piggy bank contains pennies, nickels, and dimes. The number of dimes is 15 more than the number of nickels, and there are 140
amm1812

Answer:

Option D is correct.

There are 34 nickels in the piggy bank.

Step-by-step explanation:

A piggy bank contains pennies, nickels and dimes.

Let the number of pennies be p

Let the number of nickels be n

Let the number of dimes be d

Also, note that 1 penny = $0.01

1 nickel = $0.05

1 dime = $0.10

- The number of dimes is 15 more than the number of nickels.

d = 15 + n

- There are 140 coins altogether totaling $7.17.

p + n + d = 140

0.01p + 0.05n + 0.1d = 7.17

Bringing the 3 equations together

d = 15 + n (eqn 1)

p + n + d = 140 (eqn 2)

0.01p + 0.05n + 0.1d = 7.17 (eqn 3)

Substitute (eqn 1) into (eqn 2)

p + n + d = 140

p + n + (15 + n) = 140

p + 2n + 15 = 140

p = 140 - 15 - 2n = 125 - 2n

p = 125 - 2n (eqn 4)

Substitute (eqn 1) and (eqn 4) into (eqn 3)

0.01p + 0.05n + 0.1d = 7.17

0.01(125 - 2n) + 0.05n + 0.1(15 + n) = 71.7

1.25 - 0.02n + 0.05n + 1.5 + 0.1n = 7.17

0.1n + 0.05n - 0.02n + 1.5 + 1.25 = 7.17

0.13n + 2.75 = 7.17

0.13n = 7.17 - 2.75 = 4.42

0.13n = 4.42

n = (4.42/0.13) = 34

d = 15 + n = 15 + 34 = 49

p = 125 -2n = 125 - (2×34) = 125 - 68 = 57

Hence, there are 57 pennies, 34 nickels and 49 dimes in the piggy bank.

Hope this Helps!!!

7 0
3 years ago
Need help due in 3 minutes!!!!
Yanka [14]

Answer:

ENQEU

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
The price of a video game was reduced from $60 to $45. By what percentage was the price of the video game reduced?* O 15% O 25%
Naya [18.7K]

Answer:

25

Step-by-step explanation:

The new price, $45, can be expressed as a percentage of $60 by taking it as a fraction of $60, converting to a decimal value, and multiplying by 100%. $45/$60=3/4=0.75, 0.75x100%=75%. So since 100%-75%=25%, the value was reduced by 25%.

5 0
3 years ago
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