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BabaBlast [244]
3 years ago
8

Help me find the answer for problem number 5

Mathematics
2 answers:
KiRa [710]3 years ago
4 0

let n= nickel and d=dimes

n+d=30

.5n+.10d=2.40

answer: n=12; d=18

statuscvo [17]3 years ago
3 0
18 dimes, 12 nickels is the answer
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Emma is training for a 10-kilometer race. She wants to beat her last 10-kilometer time, which was 1 hour 10 minutes. Emma has al
Whitepunk [10]

let x be how much longer she can run the race and still beat her previous time

55(min) + x(min) < 1(hr) + 10(min)

55(min) + x(min) < 60(min) + 10(min)

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x < 60 + 10 - 55

x < 15(min)

7 0
3 years ago
Will the sum of 2x3 + x2 - 4 and -5x² - 6x? be a polynomial?<br> yes<br> no
Eva8 [605]

Answer:

Yes

Step-by-step explanation:

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4 0
3 years ago
Johnathan ran 5 days this week. The most he ran in one day was 3.5 miles. Write an inequality that shows the distance johnathan
Mekhanik [1.2K]

<em><u>An inequality that shows the distance Johnathan could of ran any day this week is:</u></em>

x\leq 3.5

<em><u>Solution:</u></em>

Let "x" be the distance Johnathan can run any day of this week

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Number of days ran = 5

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x\leq 3.5

If we let y be the total distance he can travel in a week then, we may express it as,

y\leq 17.5

8 0
3 years ago
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VLD [36.1K]
Let the width =x
length = 6x
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7 0
3 years ago
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y=1/4x-2
7 0
3 years ago
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