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nasty-shy [4]
3 years ago
13

What is the verbal expression of 3x-7

Mathematics
1 answer:
jonny [76]3 years ago
8 0

Answer:

Step-by-step explanation:

Three times a number decreased by 7

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Find the simple interest earned on $2600 invested for 3 years at 12% per annum​
Aleks04 [339]

Answer:

$936

Step-by-step explanation:

Simple interest is money you can earn by initially investing some money (a.k.a the principal). In return, a percentage (a.k.a the interest) of the initial money invested is added to the principal, this is what makes your initial investment grow.

The equation for simple interest is:

I = P x r x t

P = Principal, $2600

r = interest rate, 12%

t = time involved, 3 years

Fill in the values:

2600 × 0.12 × 3 = $936.00

5 0
3 years ago
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What is another name for a relation that has each element in its domain paired with exactly one element in its range? Apex
8090 [49]
Another name for a relation is a function.
7 0
3 years ago
Compare the scores: a score of 75 on a test with a mean of 65 and a standard deviation of 8 and a score of 75 on a test with a m
LiRa [457]

Answer:

The Zscore for both test is the same

Step-by-step explanation:

Given that :

TEST 1:

score (x) = 75

Mean (m) = 65

Standard deviation (s) = 8

TEST 2:

score (x) = 75

Mean (m) = 70

Standard deviation (s) = 4

USING the relation to obtain the standardized score :

Zscore = (x - m) / s

TEST 1:

Zscore = (75 - 65) / 8

Zscore = 10/8

Zscore = 1.25

TEST 2:

Zscore = (75 - 70) / 4

Zscore = 5/4

Zscore = 1.25

The standardized score for both test is the same.

7 0
2 years ago
What is the value of x in the equation (x + 12) = (x + 14) – 3?
vodomira [7]
(x + 12) = (x + 14) - 3

subtract 12 from each side

x = x + 14 - 3 - 12

Now if we subtract x from each side we see that x - x = 0.  Combine the terms left over and we have -1, so

0 = -1

The answer is NO SOLUTION
6 0
3 years ago
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Mrs. Royal has 99 Royal Recognition awards to give out. Each class received 9 awards. How many classes received awards
Art [367]

Answer:

11

Step-by-step explanation:

you just divide it

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3 years ago
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