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emmasim [6.3K]
4 years ago
6

What are you adding by for these 3?

Mathematics
1 answer:
zepelin [54]4 years ago
6 0

Answer:

1.) adding by 0.3, 2.) adding by 0.8, 3.) adding by 1.1

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What is the meaning of the expression (4 + 5) x 2?
horsena [70]

Answer:

18.

Step-by-step explanation:

4+5 is 9, and 9 times 2 is 18

5 0
3 years ago
Read 2 more answers
M23 is (3x + 4)º and mz5 is (2x + 11)
Tom [10]

9514 1404 393

Answer:

  • same-side interior
  • (3x +4) +(2x +11) = 180
  • 77°

Step-by-step explanation:

Angles 3 and 5 are on the same side of the transversal, between the parallel lines, so can be called "same-side interior angles". These are also called "consecutive interior angles". As such, they have a sum of 180°, so are also "supplementary angles." We don't know what your pull-down menu options are, but perhaps one of these descriptions is on there.

__

Because the angles are supplementary, their sum is 180°. So, the equation ...

  (3x +4)° +(2x +11)° = 180°

can be used to solve for x. Likewise, any of the possible simplifications of this can be use:

  (3x +4) +(2x +11) = 180 . . . . . divide by degrees

  5x +15 = 180 . . . . . . . . . . . collect terms

  5x = 165 . . . . . . . . . . . . . subtract 15

  x = 33 . . . . . . . . . . . . . . divide by 5

__

Once we know that x=33, then the measure of angle 5 is found from its expression:

  m∠5 = (2x +11)° = (2·33 +11)°

  m∠5 = 77°

6 0
3 years ago
A parking meter contains nickels and quarters worth $7.70. There are 54 coins in all. Find how many of each there are.
OleMash [197]

Let's assume there is n number of nickels coin and q number of quaters coin.

Given that there are 54 coins in total. So, sum of n and q must be equal to 54.

So, n + q =54.

Hence, q = 54 - n ...(1)

Now 1 nickel is worth of $0.01 nickel. So, n nickel will woth of 0.01n.

Similarly q quarters will worth of 0.25q.

Given that a parking meter contains nickels and quarters worth $7.70. So, sum of 0.01n and 0.25q will be equal to 7.70. Therefore,

0.01n + 0.25q = 7.70

From equation (1) we can plug in q=54-n in the above equation. So,

0.01n + 0.25 (54-n) = 7.70

0.01n + 13.5 -0.25n = 7.70

-0.24n + 13.5 = 7.70

-0.24n = 7.70 - 13.5

-0.24n = -5.8

\frac{-0.24n}{-0.24} =\frac{-5.8}{-0.24}

So, n= 24.167

Hence, n= 24 ( rounded to nearest integer).

Next step is to plug in n=24 in equation (1). So,

q = 54 - 24 = 30.

Hence, there will be 24 nickel and 30 quarter.

8 0
3 years ago
11.2x-6.3=39.2<br> Please help
Ilya [14]

<h3><u>Add 6.3 to both sides:</u></h3>

2x-6.3=39.2

2x-6.3+6.3=39.2+6.3

<h3><u>simplify:</u></h3>

2x=45.5

<h3><u>Divide both sides of the equation by the same term:</u></h3>

2x=45.5

2x/2 = 45.5/2

<h3><u>Simplify:</u></h3>

x=22.75

<h3><u>Answer:</u></h3>

x=22.75

5 0
3 years ago
Hello please help thanks
Anvisha [2.4K]

Answer:

I think Evaporation

Step-by-step explanation:

First is Evaporation then Condensation. After that it is precipitation i think i hope this helps if not please don come at me.

5 0
3 years ago
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