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Kipish [7]
3 years ago
15

Hours7 2/31 2/54 3/48 4/5​

Mathematics
1 answer:
VLD [36.1K]3 years ago
3 0
1. 7 hours and 40 min
2. 1 hour and 24 min
3. 4 hours and 45 min
4. 8 hours and 48 min
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What is the value of n in the equation 1/2 (n - 4) - 3 = 3 - (2n + 3)?
Fofino [41]

Answer:

n=2

1/2n-2-3=3-2n-3

1/2n+2n=3+2+3-3

2/1/2n=5

5/2n=5

n=5 multiply 2/5

n=2

7 0
3 years ago
Find the LCM of each numbers 2,3,5,7,11
snow_lady [41]

Answer:

2310

Step-by-step explanation:

The numbers 2, 3, 5, 7, and 11 are prime.

Therefore, the LCM of those numbers is their product.

LCM = 2 * 3 * 5 * 7 * 11 = 2310

4 0
3 years ago
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Suppose you have $2,000 to invest. In 4 years, you would like to purchase a new car and want a down payment of $3,500. What inte
Blababa [14]

Answer:

Rate = 14.07%

Step-by-step explanation:

A= P(1+\frac{r}{n})^{nt}

A= 3500

P= 2000

n = 12

t = 4

3500= 2000(1+\frac{r}{12})^{4 \times 12}\\\\\frac{3500}{2000} = (1+\frac{r}{12})^{48}\\\\\frac{7}{4} = (1+\frac{r}{12})^{48}\\\\1.75 = (1+\frac{r}{12})^{48}\\\\\sqrt[48]{1.75}  = (1+\frac{r}{12})\\\\\sqrt[48]{1.75}-1 = \frac{r}{12}\\\\0.01172688 = \frac{r}{12}\\\\r = 0.01172688 \times 12 = 0.14072267\\\\r \% = 14.07%

8 0
3 years ago
Kerry read 2/3 of her chemistry book containing 420 pages. David read 3/4 of the same. Who read more pages and by how many pages
Alika [10]

Answer:

Kerry = 2/3 * 420 = 280

David = 3/4 * 420 = 315

David read more pages compared to Kerry.

3 0
3 years ago
HELP PLEASEEEE I WILL AWARD 100 POINTS ITS DUE ASAPPP<br> What is the equation for A(w)=?
skad [1K]

Answer:

390=W 195=L Area=76050

Step-by-step explanation:

You have two lengths and one width for your perimeter

P= 2L + W

you are given your perimiter 780

780= 2L + W

To solve for your maximum Width

780-2L=w

Area is L * W

A= (780-2L)*L

A= 780L - 2L^2

the derivitive of the Area

A' = 780-4L =0

add 4L to both sides

780=4L

divide by 4 on both sides

195=L

Bring back 780-2L=W and plug in what you now know is L

780-2(195)=W

780-390=W

390=W

7 0
3 years ago
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