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3 years ago

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Suppose you spend $23, and you pay with a $50 bill. The cashier gives your change in bills. List all the different ways you can

receive your correct change if you will not take more than 10 bills, and the cashier only has 1s, 5s, and 10s. Show your work.

1 answer:

Aleksandr [31]3 years ago

3 0

Here are some answer i can think of: 2-10$ 1-5$ 2-1$, 6-5$ 2-1$, 27-1$, 1-10$ 3-5$ 2-1$

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Not easy help me please

Yuki888 [10]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

In the number line attached in my attachment,

The red line represents point :

$\dfrac{10}{2}$

The blue line represents point :

$\dfrac{ - 9}{2}$

I hope it helps ~

3 0

2 years ago

There’s more options but what’s the answer for now

mel-nik [20]

<h3><u>Answer</u><u>:</u><u>-</u></h3>

$\sqrt[3]{125x^{12}y^6}\\\\\\ \to \sqrt[3]{(5x^{4}y^{2})^{^{3}}}\\\\\\ \to 5x^4y^2$

4 0

2 years ago

F(x)=x^2 what is g(x)?<br><br> pls help me

Lady bird [3.3K]

G(x) = ax^2
y = ax^2
5 = a(1)^2
a = 5
Therefore, g(x) = 5x^2

8 0

3 years ago

Prove algebraically that the straight line with equation x=2y+5 is a tangent to the circle with equation x^2+y^2=5

zmey [24]

Differentiate both sides of the equation of the circle with respect to $x$ , treating $y=y(x)$ as a function of $x$ :

$x^2+y^2=5\implies2x+2y\dfrac{\mathrm dy}{\mathrm dx}=0\implies\dfrac{\mathrm dy}{\mathrm dx}=-\dfrac xy$

This gives the slope of any line tangent to the circle at the point $(x,y)$ .

Rewriting the given line in slope-intercept form tells us its slope is

$x=2y+5\implies y=\dfrac12x-\dfrac52\implies\mathrm{slope}=\dfrac12$

In order for this line to be tangent to the circle, it must intersect the circle at the point $(x,y)$ such that

$-\dfrac xy=\dfrac12\implies y=-2x$

In the equation of the circle, we have

$x^2+(-2x)^2=5x^2=5\implies x=\pm1\implies y=\mp2$

If $x=-1$ , then $-1=2y+5\implies y=-3\neq2$ , so we omit this case.

If $x=1$ , then $1=2y+5\implies y=-2$ , as expected. Therefore $x=2y+5$ is a tangent line to the circle $x^2+y^2=5$ at the point (1, -2).

7 0

3 years ago

Read 2 more answers

C(x) = -5x^2+x<br> Find c(4)

Alchen [17]

Answer:

c(4) = -76

Step-by-step explanation:

c(x) x=4 so plug 4 in for x

-5(4)² + (4)

Do parentheses first so... 4² = 16

-5(16) + 4

-5(16) = -80

-80+4 = -76

c(4) = -76

7 0

3 years ago