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8090 [49]
3 years ago
9

Can someone pls help

Mathematics
1 answer:
Len [333]3 years ago
6 0

Answer:

I believe the answer is D

Step-by-step explanation:

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-15 +n=-9 <br> One step equation need the answer
Nady [450]

Answer:

6

Step-by-step explanation:

3 0
3 years ago
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Calculate the simple interest an<br>6000 for 3 years at 12%​
timurjin [86]

Answer:

$2160

Step-by-step explanation:

=PRN

6000×0.12×3

7 0
3 years ago
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Using these coordinates, find the slope. (0, -6), (3, -2)
seropon [69]

Answer:

The slope between the points (0, -6) and (3, -2) will be:

  • m=\frac{4}{3}

Step-by-step explanation:

Given the points

  • (0, -6)
  • (3, -2)

The slope between the points (0, -6) and (3, -2) will be:

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(0,\:-6\right),\:\left(x_2,\:y_2\right)=\left(3,\:-2\right)

m=\frac{-2-\left(-6\right)}{3-0}

m=\frac{4}{3}

Therefore, the slope between the points (0, -6) and (3, -2) will be:

  • m=\frac{4}{3}

7 0
3 years ago
Zach and Ginny are building model cars. Ginny's car is 2 more than 3 times the length of Zach's car. The sum of the lengths of b
Neporo4naja [7]

Answer:

x+(3x+2)=30

Step-by-step explanation:

Let

x ----> the length of Zach's car

y ----> the length of Ginny's car

we know that

The sum of the lengths of both cars is 30 inches

so

x+y=30 ----> equation A

Ginny's car is 2 more than 3 times the length of Zach's car

so

y=3x+2 ----> equation B

substitute equation B in equation A

x+(3x+2)=30

8 0
3 years ago
Randall has an account balance of $675.54 in a savings account that earns interest at a rate of 2.5% compounded twice a year. If
Alex_Xolod [135]
To calculate amount accrued after a given period of time we use the compound interest formula: A= P(1+r/100)∧n where A i the amount, P is the principal amount, r is the rate of interest and n is the interest period.
In the first part; A= $ 675.54, r= 1.25% (compounded semi-annually) and n =22 ( 11 years ),  hence, 675.54 = P( 1.0125)∧22
   = 675.54= 1.314P
 P= $ 514.109 , therefore the principal amount was $ 514 (to nearest dollar)
Part 2
principal amount (p)= $ 541, rate (r) = 1.2 % (compounded twice a year thus rate for one half will be 2.4/2) and the interest period (n)= 34 (17 years×2)
Amount= 541 (1.012)∧34
             = 541 ×1.5
             = $ 811.5
Therefore, the account balance after $ 811.5.

5 0
3 years ago
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