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d1i1m1o1n [39]
3 years ago
10

The mass of one coin is 16.718 grams. The mass of a second coin is 27.22 grams. How

Mathematics
1 answer:
Slav-nsk [51]3 years ago
8 0

Answer:

this is a link to a video with the answer right after the yellow line.

Step-by-step explanation: Look up Mr. Morgan math help go to his site and pass the yellow line.

Hope this helps!!

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Does anyone know the answer to this
Marysya12 [62]
Hello!

We can write this as a proportion below.

\frac{blueprint}{real} = \frac{0.5}{4} = \frac{18}{x}

As you can see, 4 is eight times 0.5. Therefore, we can multiply eighteen by eight to get our answer.

18(8)=144

Just to check, we can cross multiply and divide.

72/0.5=144

Therefore, our answer is 144 feet.

I hope this helps!
3 0
3 years ago
How much water should be added to 12mL of ​7% alcohol solution to reduce the concentration to ​6%?
lana [24]

Answer:

7%*12=6%(12+x)

.84=.72+.06x

.06x=.12

x=2

how much water should be added to 12 mL of 7% alcohol to reduce concentration to 6%? 2 ML

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which of the following are factors of both 15 and 45?
sveticcg [70]

Answer:

5,3

Step-by-step explanation:

5*3=15

15*3=45

3 0
3 years ago
Read 2 more answers
a boat travels 45 minutes at a speed of 8 mph. then the boat travels 1.5 times faster for 1/3 hr. how many miles do the boat tra
Serga [27]

Answer:

10 miles

Step-by-step explanation:

45/60 x 8 = 6 miles

8 x 1.5 = 4 miles

Now, add the two products together.

6 + 4 = 10 miles.

The boat traveled 10 miles in total.

7 0
3 years ago
Find c to complete the perfect trinomial<br><br> x2 + 4x + c
sladkih [1.3K]

Answer:

4

Step-by-step explanation:

I assume that is supposed to be x squared. A perfect trinomial is the product of a perfect square, (x times a number) squared. With these trinomials, you can look at them as: ax squared times bx + c. When a is 1, the fastest way to get c to make a perfect square is to divide b by 2. In this case, it's 4/2 = 2. The last step is to square that number. 2 squared = 4.

8 0
3 years ago
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