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4 years ago

Solve this (6 + 5) + 65

Mathematics

2 answers:

Free_Kalibri [48]4 years ago

8 0

Answer:

(6+5) + 65

11 + 65

Step-by-step explanation: You have to do the semicolons first then do your problem

Paraphin [41]4 years ago

7 0

(6+5) + 65 =

11 + 65 =

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Sophie [7]

For one it would be the mass because liquid isn’t measured in grams

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3 years ago

What is 4.22 x 10^17 seconds

Allushta [10]

We can rewrite the given time as:

7.03x10^15 mins
1.17x10^14 hours.
4.88x10^12 days.

<h3>What is 4.22x10^17 seconds in minutes and hours?</h3>

First, remember that:

60s = 1 min

Then to write that amount in minutes, we just need to divide by 60, so we get:

(4.22x10^17)/60 mins= 7.03x10^15 mins

Now, remember that:

1 hour = 3600s

Then to get the time in hours, we need to divide by 3600:

(4.22x10^17)/3600 h = 1.17x10^14 hours.

Similarly, you can change to any time unit that you want, for example:

1 day = 24*3600 s

Then the time in days is:

(4.22x10^17)/(24*3600) days = 4.88x10^12 days.

And so on.

If you want to learn more about changes of units:

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1 year ago

A map of a forest uses a scale of 1 inch = 15 miles. The dimensions of the map are 8 inches by 14.5 inches. What is the actual a

Bad White [126]

The dimension from 8 inches to actual size is 8 * 15 = 120. 14.5 inches to actual size is 14.5 * 15 = 217.5.

Then, you multiply 120 to 217.5 to get 26100 square miles.

The answer is D.

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4 years ago

Read 2 more answers

Solve the equation:<br>x<br>-- =(12)<br>6

Misha Larkins [42]

X/6=12, we have to eliminate the 6 so that the x is by itself. In order to do that we have to multiply each side by 6. So we get x=72

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3 years ago

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Maria and Javier are taking a trip to a crafts store to buy supplies for an arts project. Maria buy 11 packs of ribbon and 16 ne

Umnica [9.8K]

Answer:

ribbon: $0.45
markers: $0.08

Step-by-step explanation:

Each purchase will be the sum of products of item price and number of items. The two purchases give rise to two equations.

<h3>equations</h3>

The variables are defined in the problem statement. The two purchases are ...

11r +16m = 6.23

13r +7m = 6.41

<h3>solution</h3>

A calculator offers a simple way to find the solutions to these equations. The attachments show the solution to be ...

r = 0.48
m = 0.08

The cost of ribbon is $0.45; the cost of a marker is $0.08.

The "cross-multiplication" method of solving these equations seems particularly useful when the coefficients are mutually prime. It starts with a rewrite to general form:

11r +16m -6.23 = 0
13r +7m -6.41 = 0

Then we define three "cross products":

Δ1 = (11)(7) -(13)(16) = -131

Δ2 = (16)(-6.41) -(7)(-623) = -58.95

Δ3 = (-6.23)(13) -(-6.41)(11) = -10.48

The solutions are ...

r = Δ2/Δ1 = -58.95/-131 = 0.45

m = Δ3/Δ1 = -10.48/-131 = 0.08

The cost of ribbon is $0.45; the cost of a marker is $0.08.

_____

For more about the cross-multiplication method you can read ...

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2 years ago