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Stells [14]
3 years ago
8

If x = 5 and y = 7, evaluate the following expression: 100 – 3(3y - 4x)

Mathematics
2 answers:
shtirl [24]3 years ago
7 0

100 - 3(3 x 7 - 4 x 5)

Simplify

97(21 - 20)  

Simplify

97(1)

Now, multiply.

97 x 1 = 97

So the answer to the equation above, is 97.

zheka24 [161]3 years ago
7 0

Answer:

this is your answer. If I'm right so.

Please mark me as brainliest. thanks!!

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A reflection across the x-axis keeps the x-coordinate the same but flips the y-coordinate. What do you think a reflection across
Studentka2010 [4]

Answer: A reflection across the x-axis keeps the x-coordinates the same but flips the signs of the y-coordinates. So, it should be the opposite for a reflection across the y-axis. The y-coordinates remain the same, but the signs of the x-coordinates change.

Step-by-step explanation

I copy and pasted the answer

8 0
3 years ago
What is the interest rate if the principal is $25,000, the interest is $10,875, and the time is 15 years?
mel-nik [20]

Answer:

interest rate = 2.9%

Step-by-step explanation:

the principal is $25,000, the interest is $10,875

Number of years = 15

We use simple interest formula

I = P*r*t

Where I is the interest amount=10,875

P is the principal amount= 25000

r is the interest rate = r

t is the number of years = 15

Plug in all the value in the formula

I = P*r*t

10875 = 25000 * r * 15

10875 = 375000 * r

Divide both sides by 375000

r=0.029

We always write rate of interest in percentage so we multiply by 100

0.029 * 100= 2.9%

So interest rate = 2.9%



8 0
2 years ago
Calculate the annual return percentage
xenn [34]
The annual return percentages will be evaluated using the formula:
A=P(1+r/100)^n
where:
A=amount
P=principle
r=rate
n=time

a] A=$500, P=$400, n=1 years
500=400(1+r)^1
solving for r we shall obtain:
1.25=1+r
hence
r=1.25-1
r==0.25
annual rate of investment is 25%

b] A=2500+100=$2600, P=$ 2000, n=1 year
hence
2600=2000(1+r)^1
2600/2000=1+r
1.3=1+r
r=1.3-1
r=0.3 
annual rate of investment is 30%
5 0
3 years ago
A triangular sign is being made.
wlad13 [49]

Answer: The answer is C

Step-by-step explanation:

7 0
2 years ago
Help with this question plz I need the answer plz help me plz
olga nikolaevna [1]

Answer:

c

Step-by-step explanation:

45:15=3:1 not 1:3

4 0
2 years ago
Read 2 more answers
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