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Aleks [24]
3 years ago
9

Mr. Haney has 11 coins in dimes and quarters. The value of his coins is $2.15. how many dimes does he have?

Mathematics
1 answer:
Anna11 [10]3 years ago
4 0

Answer:

4 dimes

Step-by-step explanation:

d+q=11  

10d+25q=215

15d=11(25)-215=60

d=60/15=4

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Multiply.<br> x2 -5x + 2<br> x 3x + 2x +3
Citrus2011 [14]

Answer: 3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Por favor ayudenme con explicacion
Alexeev081 [22]

Answer:

NA

a = 53

Step-by-step explanation:

A bisector creates two equal angles. Set them equal to each other.

5a - 160 = 2a - 1  ( subtract 2a from both sides)

3a = 159               (add 159 to both sides)

a = 53                   (divide by 3)

6 0
3 years ago
What is the average rate of change of the amount of the element over the 10-minute experiment? *
Dima020 [189]

Answer:

-2.7  g/min

Step-by-step explanation:

Given: a graph

To find: the average rate of change of the amount of the element over the 10-minute experiment

Solution:

A rate of change of one quantity with respect to another quantity is known as rate of change. If y is the dependent variable and x is the independent variable then average rate of change = change in y /change in x.

From the graph,

change in x (time) = 10-0=10 minutes

change in y ( amount of the element) = 3.22-30=-26.78 g

So, average rate of change = \frac{-26.78}{10} =-2.7  g/min

7 0
3 years ago
For the function f(x)= 1/x+1. which of these could be a value f(x) when x is close to -1
WITCHER [35]

Given the following question:

f(x)=\frac{1}{x+1}

Graph the function:

The value of the function of x is infinite as you see the line goes on forever. Which means your answer is option C or "10,000."

4 0
1 year ago
How o I get the awnser to 9s+3=57 I need help asap im in 8th grade
PIT_PIT [208]
First subtract 3 from both sides of the equal sign. 
9s + 3 = 57
      - 3     -3
9s = 54

Then divide both sides by 9.
9s = 54
/9     /9
s = 6

You can check it by plugging it back into the equation.
9s + 3 = 57
9 * 6  + 3= 57
54 + 3 = 37
57 = 57
Yep! It's correct! :)

Hope that helped. Algebra can be tricky sometimes I know but it's really just balancing equations. 
3 0
4 years ago
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