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3 years ago

15

A man has 16 coins in his pocket, all of which are nickels and quarters. If the total value of his change is $1.40, how many of

each coin does he have?

2 answers:

salantis [7]3 years ago

8 0

Answer:

3 quarters 13 nickels

Step-by-step explanation:

Anettt [7]3 years ago

7 0

Answer:

3 quarters and 13 nickels

Step-by-step explanation:

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Line 1 passes through the points -2,7 and 3,3. Line 2 passes through the points 5,1 and 9,1. Find the slope of each line. Which

RSB [31]

Answer:

The slope of the given line 1 is -4/5.

The slope of the given line 2 is 0.

The line 2 has a greater slope then line 1.

Step-by-step explanation:

The slope of a line with points (x1,y1) and (x2,y2) is given as:

$m = \frac{y_2- y_1}{x_2-x_1}$

Now, Here the, points of the line 1 are A (-2,7) and B (3,3)

So, here, the slope of line AB is $m = \frac{3 -7}{3-(-2)} = \frac{-4}{3 +2} = \frac{-4}{5}$

Hence, the slope of the given line 1 is -4/5.

Now, Here the, points of the line 2 are P (5,1) and Q (9,1)

So, here, the slope of line PQ is $m = \frac{1-1}{9-5} = \frac{0}{4} = 0$

Hence, the slope of the given line 2 is 0.

Now, as we can see 0 > ( -4 / 5)

So, the line 2 has a greater slope then line 1.

5 0

3 years ago

Use the substitution method to solve the system of equations

yarga [219]

Answer:

C. (3,2)

Step-by-step explanation:

to begin the substitution method, we can begin by substituting the answer choice value into the given system or equations to determine if the values make the equation true.

the first choice is (2,1)

3(2) + 2(1) = 13

6 + 2 is not equal to 13. Therefore this answer choice is incorrect.

second choice (1,2)

3(1) + 2(2) = 13

3 + 4 is not equal to 13. This answer is also incorrect.

third choice (3,2)

3(3) + 2(2)

9 + 4 = 13 is true!

we can also substitute these x and y values for the equation underneath:

y = x - 1

2 = 3 - 1

2 = 2 is true! Therefore, C. (3,2) is correct!

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3 years ago

Which choices are in the solution set of the equation below? Check all that

Marysya12 [62]

I believe the answer to this is F and i think D also

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3 years ago

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The surface area of a square pyramid is 136 square inches. The base length is 4 inches. What is the slant height?

aivan3 [116]

The surface area is 13630=1/2(4)(height)30=2(height)and from there we can solve. 30/2=15the height of the triangle is 15, which is also the slant heightto check our work, 1/2(4)(15)=304x15=601/2x60=30

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3 years ago

I need some help ill give brainly

anastassius [24]

Answer:

Step-by-step explanation:

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4 years ago