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REY [17]
3 years ago
12

Solve the equation. m + (-22) = -25

Mathematics
1 answer:
lutik1710 [3]3 years ago
5 0

Answer:

m=-3

Step-by-step explanation:

move the -22 to the other side by adding 22 on both sides:

m-22+22=-25+22

Simplify:

m=-3

Answer: m=-3

Hope this helps!

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Gabriella invested $73,000 in an account paying an interest rate of 3%
Ivanshal [37]

Answer:

Gabriella will make $61 more than Mila after 5 years

Step-by-step explanation:

Gabriella Data

Principal Amount P= $73,000

Rate r = 3% or 0.03

Compounded continuously

Time t = 5 years

The formula used is: A=Pe^{rt}

Putting values and finding A

A=Pe^{rt}\\A=73000e^{0.03*5}\\A=73000e^{015}\\A=84813.899\\A\approx84814

So, After 5 years Gabriella will have $84814

Mila Data:

Principal Amount P= $73,000

Rate r = 3% or 0.03

Compounded quarterly n = 4

Time t = 5 years

The formula used is:A=P(1+\frac{r}{n})^{nt}

Putting values and finding A

A=P(1+\frac{r}{n})^{nt}\\A=73000(1+\frac{0.03}{4})^{4*5}\\A= 73000(1+0.0075)^{20}\\A= 73000(1.0075)^{20}\\A=73000(1.161)\\A=84753

So, After 5 years Mila will have $84753

Now subtracting to find the difference 84814-84753 = 61

So, Gabriella will make $61 more than Mila after 5 years

4 0
3 years ago
The area under a particular normal curve between 6 and 8 is 0.695. A normally distributed variable has the same mean and standar
TiliK225 [7]

Answer:

69.5%

Step-by-step explanation:

A feature of the normal distribution is that this is completely determined by its mean and standard deviation, therefore, if two normal curves have the same mean and standard deviation we can be sure that they are the same normal curve. Then, the probability of getting a value of the normally distributed variable between 6 and 8 is 0.695. In practice we can say that if we get a large sample of observations of the variable, then, the percentage of all possible observations of the variable that lie between 6 and 8 is 100(0.695)% = 69.5%.

4 0
3 years ago
What is the mean of this set of numbers? 8,12,10,9,12,9,11,9​
earnstyle [38]

Answer:

10

Step-by-step explanation:

You add all the numbers and then divide by the amount of numbers (in this case, 8)

7 0
3 years ago
Read 2 more answers
X-7=7-x find solution
adell [148]

Answer:

7

Step-by-step explanation:

x-7=7-x

2x-7=7

2x=14

x=7

6 0
3 years ago
Read 2 more answers
How many and what kind of roots will you have if the discriminant is 52
mestny [16]

Answer:

The discriminant is:  

b

2

−

4

a

c

a

=

1

b

=

12

c

=

36

Substitute these values into the discriminant and you should get two answers (real roots):

12

2

−

4

(

1

)

(

36

)

=

0

If the discriminant is 0 there is 1 real root, if it is > 0 there are 2 and otherwise 0 real roots.

Step-by-step explanation:

Im pretty sure this is it, hope I could help

3 0
3 years ago
Read 2 more answers
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