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Ksju [112]
1 year ago
5

On Saturday, Lukas drove 4x – 5 miles. On Sunday, he drove 3x – 10 miles. What is the total amount of miles lukas drove

Mathematics
1 answer:
lana66690 [7]1 year ago
3 0

Answer:

first is -20 second is -30 and if you add those it is -50

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a couple has narrowed down the choices of a name for their new baby to first names and middle names. how many different​ first-
emmainna [20.7K]

There are 28 ways in which a couple can choose the name of the baby for its name.

<h3>What is defined as the combination?</h3>
  • A combination is an algebraic technique for determining the number of possible arrangements in a set of items in which the order of the selection is irrelevant.
  • You can choose the items in just about any order in combinations. Permutations and combinations are often confused.

If we need to choose objects from two groups of x and n objects so that one object from each group is chosen, we can do so by calculating the combinations possible by:  

= ˣC₁  ×  ⁿC₁

Let 'x' be the set of first name = 7

Let 'n' be the set of second name = 4

Putting the values in formula;

= ⁷C₁ × ⁴C₁

= 7 × 4

= 28

Thus, there are 28 ways in which a couple can choose the name of the baby for its name.

To know more about the combination, here

brainly.com/question/12725706

#SPJ9

The complete question is-

A couple has narrowed down the choices of a name for their new baby to 7 first names and 4 second names.

How many different first- and second-name arrangements are possible?

8 0
1 year ago
Can someone help please?
spin [16.1K]

Answer: B.

Step-by-step explanation: Googled it.

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2 years ago
Solve to find x and y in the diagram. HELP ASAP!!
Lapatulllka [165]
X=12, y=7.5

Here is an explanation if you want to know how to do it:

First, look at the diagram and think about what you know so far. Since the lines are parallel, 5x+4y and 12y must be equal. We also know that there is a right angle, so since both angles are equal, 12y=90 and 5x+4y=90.

Solve for y by dividing 90 by 12 to get 7.5, so y=7.5. Sub in this value to the equation on top and you should get 5x+4(7.5)=90 4(7.5)=30, so subtract that from 90 to get 60 and divide 60 by 5 to get 12, so x=12.
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Tresset [83]
All you need to do is add 37+16 and it will be equivalent to 53
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7x15 can be written as
Mrrafil [7]
105 is the product of 15 and 7.
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3 years ago
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