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vitfil [10]
3 years ago
13

jack has a collection of new nickels and quarters. he has a total of 50 coins worth $10.30. how many of each coin does he have?

Mathematics
1 answer:
gayaneshka [121]3 years ago
5 0
20  ejndkjdnkjewbdgfyrrrrrrrrrrrrqwofeyuhjw
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It was recently estimated that females outnumber males by about three or two. If there are 1770 people in a county, how many of
max2010maxim [7]

GIVEN

1) Females outnumber males by 3 to 2.

2) There are 1770 people in the city.

SOLUTION

Let the number of males be x and the number of females y. Therefore, the total number of people can be written to be:

x+y=1770\text{   -----------(1)}

If there are 3 females for every 2 males, we have that:

\begin{gathered} \frac{y}{3}=\frac{x}{2} \\ \therefore \\ x=\frac{2y}{3}\text{   ----------(2)} \end{gathered}

We can substitute equation (2) into equation (1) and solve for y:

\begin{gathered} \frac{2}{3}y+y=1770 \\ \frac{2y+3y}{3}=1770 \\ 5y=1770\times3 \\ 5y=5310 \end{gathered}

Dividing both sides by 5, we have

y=1062

There are 1062 females in the county.

3 0
1 year ago
11. You pay $24.50 for 10 gallons of gasoline and one
Cloud [144]
Ummm this confuses me a bit
6 0
3 years ago
What is the x intercept of the function x^3-5x^2-8x+48
Zinaida [17]

Answer:

(x+3)(x-4)^2

Step-by-step explanation:

= (x+3)(x^3-5x^2-8x+48)/(x+3)

= x (x^3-5x^2-8x+48)/(x+3)

= x^2-8x+16

= (x+3)(x-4)(x-4)

= (x+3)(x-4)^2

4 0
3 years ago
Read 2 more answers
Define Complementary and Supplementary Angles.
Alla [95]

Answer:

Complementary angles: the angles whose sum is 90° are called complementary angles.

Supplementary angles: the angles whose sum is 180° are called supplementary angles.

Step-by-step explanation:

hope it might help....

3 0
3 years ago
Plz help quick!!!!!!!!!!!!!!!!!!!!!!!
4vir4ik [10]

Answer:

Step-by-step explanation:

well... all the least common factor have to write in the increasing order.

So, following this picture, we have to write in this order:

2 x 2 x 2 x 3 x 5

5 0
3 years ago
Read 2 more answers
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