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Amanda [17]
3 years ago
7

johnny saves all his nickels and dimes in a jar. one day he counted them and found there were 81 coins worth 5.55. how many nick

els and how many dimes were in the jar
Mathematics
2 answers:
Svetlanka [38]3 years ago
6 0
There were 30 dimes($3.00) and 51 nickles($2.55) which makes a total of $5.55 and 81 coins in all.
ad-work [718]3 years ago
4 0
It  will be  50 dimes which equals 5 dollars then 11 nickels which equals 55 cents which makes 5 dollars and 55 cent 
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If f(x)= 3x-1 and g(x)=2x-3, for which value of x does g(x)= f(2)
gregori [183]

Answer:

g(4)=f(2)

Step-by-step explanation:

f(2)=3(2)-1

f(2)=6-1

f(2)=5


We then get:

g(x)=f(2)

subsitute 5 for f(2)

g(x)=5

now solve

5=2x-3

add 3

8=2x

divide 2

4=x

so the answer is x=4 or  

g(4)=f(2)

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3 years ago
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Greeley [361]
Z=82 vertical or opposite angle theorem
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3 years ago
Solve the equation: 3(x - 4) = -21 *
romanna [79]

Answer:

x = -3

Step-by-step explanation:

simplify

3(x - 4) = -21

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7 0
3 years ago
Read 2 more answers
What is the perimeter, in units, of polygon UVWXYZ? Enter your answer in the box.
nikitadnepr [17]

Given:

Consider the below figure attached with this question.

To find:

The perimeter of the polygon UVWXYZ.

Solution:

All sides and vertical and horizontal. So, we can easily find the side lengths of the given polygon by counting the boxes between two points.

From the figure it is clear that,

UV = 9 units

VW = 2 units

WX = 3 units

XY = 3 units

YZ = 6 units

ZU = 5 units

Now, perimeter is the sum of all the sides.

Perimeter=UV+VW+WX+XY+YZ+ZU

Perimeter=9+2+3+3+6+5

Perimeter=28

Therefore, the perimeter of UVWXYZ is 28 units.

6 0
3 years ago
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fomenos

Answer:

A

Step-by-step explanation:

Put brackets around the first two tems.

y = (x^2 - 8x) + 29

Take 1/2 coefficient of the linear term -8. Square that result. Add it inside the brackets.

1/2 (- 8) = - 4

(- 4)^2 = 16

y = (x^2 - 8x + 16) + 29

Subtract 16 outside the brackets.

y = (x^2 - 8x + 16) + 29 - 16  

Do the subtraction

y = (x^2 - 8x + 16) + 13

Represent what is inside the brackets as a square.

y = ( x - 4)^2 + 13

The answer is A

7 0
3 years ago
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