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Vika [28.1K]
3 years ago
9

Help plzzz will give brainliest

Mathematics
2 answers:
goblinko [34]3 years ago
8 0
Divide by the number of items.
o-na [289]3 years ago
8 0

Answer:

The number of items.

Step-by-step explanation:

1. add up all the prices of items.

2. divide by the number/amount of items.

This is how u figure out what the mean or in other words, average is.

Example:

There are three items, 1 apple, 1 orange, and 1 lemon. The cost of the apple is $1.50, the cost of the orange is $1.70, and the cost of the lemon is $1.90. We must add the cost of each other. The total of these 3 items is $3.40. Since we want to find the mean of these items we will have to divide by 3 since there are 3 items. This will give us a mean of $1.70.

Hope this helps ! :)

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2/9 of the people in a restaurant are adults. If there are 95 more children than adults, how many children are?
mel-nik [20]
97/9 kids because 95+2/9=97/9
5 0
3 years ago
PLEASE HELP ASAP!:<br><br> Solve for a and b<br> 6a-b=-5<br> 4a-3b = -8
klemol [59]

Answer:

a = -1/2

b = 2

Step-by-step explanation:

Step 1: Rewrite 1st equation

-b = -5 - 6a

b = 5 + 6a

Step 2: Substitution

4a - 3(5 + 6a) = -8

Step 3: Solve

4a - 15 - 18a = -8

-14a - 15 = -8

-14a = 7

a = -1/2

Step 4: Plug in <em>a</em> to find <em>b</em>

6(-1/2) - b = -5

-3 - b = -5

-b = -2

b = 2

7 0
3 years ago
Is (2, 3) a solution to this system of equations?<br> 2x + y = 7<br> 17x + 19y = 18<br> yes<br> no
netineya [11]

I think its not a correct solution of given equations.

4 0
3 years ago
Can you guys please answer this is really important
stellarik [79]

Answer:

B) BC'= 8, m A'= 28°

Step-by-step explanation:

When dilating a figure, it increases its size or decreases. In this case, as it is dilating by a factor of 1/2, you can assume it decreases.

To find the value of the new figure, A'B'C', you have to multiply the factor times the lengths of the triangle, or, the only one they are asking for in this case, the length BC':

  • BC' = BC×1/2
  • BC' = 16×1/2
  • BC' = 8

The angles, otherwise, do not change. When figures are dilated, they are similar. The properties of similar figures are that they have congruent angles, therefore, the same angles. They do not have any effect caused by the factor, so m A' stays at 28°.

3 0
3 years ago
Given rs || qp, what is the value of x?
myrzilka [38]

In the given figure,

Angle 108° + 12x = 180°

because they for pair of co- interior angles which are supplementary.

so,

  • 12x + 108\degree = 180\degree

  • 12x = 180\degree - 108\degree

  • 12x = 72\degree

  • x =  \dfrac{72\degree}{12}

  • x = 6\degree

hence , value of x = 6°

5 0
3 years ago
Read 2 more answers
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