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dimaraw [331]
3 years ago
7

What decimal represents the portion of silver in sterling silver?

Mathematics
1 answer:
Aleks [24]3 years ago
5 0
The answer is 92.5%.
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Ms. Santiago has many pens in her desk drawer. She says that if you divide the total number of pens 1, 2, 3, 4, 5, or 6 you get
Aliun [14]
6 is the answer to the question cuz its the biggest
7 0
3 years ago
tom drives 200 miles in 4 hour. he drives the first 32 miles at an average speed of 64mph. work out his average sped for the res
WINSTONCH [101]

Answer:

His average speed for the rest of the journey was of 48mph.

Step-by-step explanation:

We use the following relation to solve this question:

v = \frac{d}{t}

In which v is the velocity, d is the distance and t is the time.

First 32 miles at an average speed of 64mph.

So the time for these 32 miles is:

64 = \frac{32}{t}

64t = 32

t = \frac{32}{64}

t = 0.5

Rest of the trip:

200 - 32 = 168 miles in 4 - 0.5 = 3.5 hours. So the average speed is of:

v = \frac{d}{t} = \frac{168}{3.5} = 48

His average speed for the rest of the journey was of 48mph.

3 0
3 years ago
Please can you help me???
4vir4ik [10]

Answer:

17\sqrt{2}

Step-by-step explanation:

7 0
2 years ago
iTunes and Amazon each have plans for downloading music. iTunes charges $5.00 to join and $0.75 per song. Amazon has no fee to j
aleksandrvk [35]

Answer:

20 songs.

Step-by-step explanation:

we are given that,  iTunes charges $5.00 to join and $0.75 per song.

Amazon has no fee to join and charges $1.00 per song.

Let x songs would you have to download (same number of downloads for each company) so that the prices are the same.

Then we can write

5+0.75x=1x\\\text{take like terms together by adding -0.75x on both the sides}\\5+0.75x-0.75x=1x-0.75x\\5=0.25x\\\text{Divide both the sides by 0.25}\\x=20

7 0
3 years ago
Solve the system of equations using elimination: -8x-4y=4 and -5x-y=-11.
ziro4ka [17]

The solutions to the given system of equations are x = 4 and y = -9

<h3>Simultaneous linear equations</h3>

From the question, we are to determine the solutions to the given system of equations

The given system of equations are

-8x-4y=4  --------- (1)

-5x-y=-11   --------- (2)

Multiply equation (2) by 4

4 ×[-5x-y=-11 ]

-20x -4y = -44  -------- (3)

Now, subtract equation (3) from equation (1)

-8x -4y = 4  --------- (1)

-(-20x -4y = -44)  -------- (3)

12x = 48

x = 48/12

x = 4

Substitute the value of x into equation (2)

-5x -y = -11

-5(4) -y = -11

-20 -y = -11

-y = -11 + 20

-y = 9

∴ y = -9

Hence, the solutions to the given system of equations are x = 4 and y = -9

Learn more on Simultaneous linear equations here: brainly.com/question/26310043

#SPJ1

6 0
2 years ago
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