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MrRissso [65]
3 years ago
9

This equation needs to be solved

Mathematics
2 answers:
ella [17]3 years ago
6 0
-28n - 4 + 2n - 8 = 66

-26n - 12 = 66

-26n = 78

n = -3
velikii [3]3 years ago
3 0

66 = -4(7n + 1) + 2(n - 4)

  • Distribute -4 inside the parentheses.

66 = -28n - 4 + 2(n - 4)

  • Distribute 2 inside the parentheses.

66 = -28n - 4 + 2n - 8

  • Combine like terms.

66 = -26n - 12

  • Add 12 to both sides.

78 = -26n

  • Divide both sides by -26.

n = -3

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How much interest will be paid in 2 years for a loan of $1500 at 8.25% simple interest ?
uysha [10]
8.25\%=0.0825\\\\0.0825\cdot\$1500=\$123.75-after\ the\ one\ year\\\\\$1500+123.75\$=\$1623.75\\\\0.0825\cdot\$1623.75=\$133.96-after\ the\ second\ year\\\\\$123.75+\$133.96=\$257.71-answer
3 0
3 years ago
Solve the solution using the substitution method <br><br>3x +5y = 29<br>y= -4x -1
Artist 52 [7]
3x + 5y = 29         first equation
y = -4x - 1             second equation

substitute the second equation to the first equation;
3x + 5(-4x - 1) = 29
-17x - 5 = 29

solve for x;
-17x - 5 = 29
-17x = 34
x = -2

substitute x = -2 into the second equation to find y;
y = -4x - 1
y = -4(-2) - 1
y = 8 - 1
y = 7

so;
x = -2,  y = 7

hope this helps, God bless!
3 0
3 years ago
A school has 320 girls and 250 boys the probity that a girl is left handed 0.2 the probity that a boy is left handed is 0.1 esti
Elena L [17]

Probability helps us to know the chances of an event occurring. The estimated number of left-handed persons in the school is 89.

<h3>What is Probability?</h3>

Probability helps us to know the chances of an event occurring.

\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}

Given the number of girls is 320, the probability that a girl is left-handed is 0.2. Therefore, the number of girls who are left-handed is,

Number of left-handed girls = (320×0.2) = 64

Given the number of boys is 250, the probability that a boy is left-handed is 0.1. Therefore, the number of boys who are left-handed is,

Number of left-handed boys= (250×0.1) = 25

Hence, the estimated number of left-handed persons in the school is 89.

Learn more about Probability:

brainly.com/question/795909

#SPJ1

4 0
2 years ago
The bottom shape is a square prism with base edges of 5 feet and a height of 15 feet. What is the volume of the composite figure
alina1380 [7]
If the base of the prism is five an all sides with a height of 15 the volume would be  375 for the prism

if the pyramid has a base width and length of five, like the prism, it would have a volume of 25

the whole shape/construct together has a volume of 400ft^3
7 0
3 years ago
Read 2 more answers
Help please!!!!!!!!!!!!!!!!!
krok68 [10]
C. 0.25 because you divide 0.06 by 0.24
5 0
3 years ago
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