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Anvisha [2.4K]
3 years ago
14

HELP PLZZZZZ ASAP

Mathematics
2 answers:
oksian1 [2.3K]3 years ago
6 0

Answer:

$22.50

Step-by-step explanation:

$30.00 x %25 or .25 = $7.50

$30.00 - $7.50 = $22.50

Deffense [45]3 years ago
5 0

Answer: $22.50

Step-by-step explanation:

25% of 30 = 7.5

30 - 7.5 = 22.50

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[50 pts] An even number, n, times the next consecutive number, n + 2, is equal to 168. Find the original number.
ale4655 [162]

<u>We are given:</u>

An even number 'n', multiplied by the next consecutive even number is 168

<u>Solving for n:</u>

From the given statement, we can say that:

n(n+2) = 168                      [<em>n multiplied by the next even number 'n+2'</em>]

n² + 2n = 168

n² + 2n - 168 = 0               [<em>subtracting 168 from both sides</em>]

We can see that we now have a quadratic equation, solving using splitting the middle term

n² + 14n - 12n - 168 = 0

n(n + 14) -12(n + 14) = 0      <em>[factoring out common terms</em>]

(n-12)(n+14) = 0

Here, we can divide both sides by either (n-12) OR (n+14)

Checking the result in both the cases:

(n + 14) = 0/(n-12)                     (n-12) = 0/(n+14)

n + 14 = 0                                 n - 12 = 0

n = -14                                      n = 12

Both these values are even and since we are not told if the number 'n' is positive or negative, both 12 and -14 are the possible values of n

4 0
2 years ago
Karita had $138.72 in her checking account. She wrote checks for $45.23 and $18.00. Then she made a deposit of $75.85 into her a
svetlana [45]

Answer:

The best estimate for the money in Karita's account now is $151.

Step-by-step explanation:

Given:

Karita had $138.72 in her checking account.

She wrote checks for $45.23 and $18.00.

Then she made a deposit of $75.85 into her account.

Now, to find the best estimate for the money in Karita's account now.

<em>Initial account = $138.72.</em>

<em>Deducted amount = $45.23+$18.00=$63.23.</em>

So, the amount after deduction:

$138.72 - $63.23 = $75.49.

Now, the amount after deposit:

$75.49 + $75.85 = $151.34.

Therefore, the best estimate for the money in Karita's account now is $151.

6 0
3 years ago
A fair number cube is rolled. What is the probability that a number greater than 2 is rolled
exis [7]

Answer:

2/3

Step-by-step explanation:

Ah, I see. A 1-6 die.

Probability of one number = 1/6

2 numbers? = 2/6

6/6-2/6=4/6

4/6=2/3

3 0
3 years ago
Read 2 more answers
. If TSR ~ TFE, find the perimeter of TFE.
anastassius [24]

Answer3.2837377392:

Step-by-step explanation:

7 0
3 years ago
What is his weekly allowance if he ended with $15
zavuch27 [327]
The answer would be x = ,because
x - x/2 + 9 = 15
x/2 + 9 = 15
x/2 = 6
x = 12

Please award Brainiest!!! ☺
5 0
3 years ago
Read 2 more answers
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