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Masteriza [31]
3 years ago
12

I need help with 14 15 and 17 please​

Mathematics
1 answer:
Dahasolnce [82]3 years ago
5 0
The answer to 14 is 7 because you spent 7 more dollars then you had so that would be negative 7 dollars and an integer to -7 is 7
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Denise has taken four math tests this semester and
Viefleur [7K]

Answer:

93

Step-by-step explanation:

Setup an equation. Add the 5 tests together, the unknown test will be represented by x, Since there are 5 tests total, you will divide by 5. to find the average.

\frac{89 + 85+96+87+x}{5} = 90

To solve first multiply both side by 5.

(5) \frac{89 + 85+96+87+x}{5} = 90 (5)

89 + 85+96+87+x = 450

Add the left side and then solve for x

357 + x = 450

Subtract 357 from both sides

357 - 357 + x = 450 - 357

x = 93

The last test has to be a score of 93 to get an average of 90.

4 0
2 years ago
Total slack is calculated by ____
lara [203]

Total slack is calculated by the late finish minus early finish and the late start minus the early start

<h3>What is the total slack?</h3>

Total slack is simply the amount of time taken for a task to be delayed before the project finish date is delayed. It can be positive or negative.

It is calculated as the calculated as the value of the Late Finish minus the Early Finish field, and the Late Start minus the Early Start field.

Total slack = Late finish - early finish + late start - early start

Thus, the total slack is calculated by the late finish minus early finish and the late start minus the early start.

Learn more about slack time here:

brainly.com/question/13278483

#SPJ1

8 0
1 year ago
Heather lives 7 / 10 mile from theschool and 2 / 5 miles from the library . How much closer does Heather live to the library tha
frez [133]
First get the same denominator 2/5=4/10 so from here do 7/10-4/10 the denominator stays the same and the numerator changes, 3/10 is the answer so Heather live 3/10 of a mile closer to the library than the school
6 0
3 years ago
What’s the answer for <br> Solve: 4(2x+4)=56
mario62 [17]

Answer:

x=5

Step-by-step explanation:

four times two x gives you 8x. 4 times 4 is 16. Subtract 16 from both sides you get 40. divide 8x by 8 and the eights cancel out. Divide 40 by 8 and you get 5

5 0
3 years ago
Read 2 more answers
Which of the following are the coordinates of the vertex of y = x2 + 12x − 9?
irga5000 [103]
The vertex is (12,-9). Hope this helps.
5 0
3 years ago
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