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2 years ago

Can someone please help me with this

Mathematics

1 answer:

oee [108]2 years ago

6 0

Answer:

165 pennies

Step-by-step explanation:

250/1.52=164.473684211, but just round it to the nearest whole number whitch would be 165!

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Selena and Drake are evaluating the expression , when . Selena's Work Drake's Work Who is correct and why? Selena is incorrect b

Shtirlitz [24]

Answer:

Selena is correct because she simplified correctly and then evaluated correctly after substituting the values for the variables.

I did this lesson i asked my teacher to help me but i did this problem on my own so i hope its right :)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Solve the logarithmic equation. Be sure to reject any value of x that is not in the domain of the original logarithmic expressio

Sidana [21]

9514 1404 393

Answer:

x = 16/3

Step-by-step explanation:

a) The rewritten equation is ...

$\dfrac{x-2}{x+8}=\dfrac{x-1}{x+12}$

b) The solution can be found as ...

$\dfrac{x-2}{x+8}-\dfrac{x-1}{x+12}=0\\\\(x-2)(x+12)-(x+8)(x-1)=0 \qquad\text{numerator of the difference}\\\\(x^2+10x-24)-(x^2+7x-8)=0\\\\3x-16=0\qquad\text{simplified}\\\\x=\dfrac{16}{3}\qquad\text{one solution}$

The solution set is {16/3}.

_____

The applicable rule of logarithms is ...

log(a) -log(b) = log(a/b)

8 0

3 years ago

Read 2 more answers

Please help!!! Ella and Margaret were at a carnival. They each got a ticket for the Ferris wheel. Ella got a snow cone, and Marg

seraphim [82]

Answer:

(B) $5.25

Step-by-step explanation:

We can create an equation to represent this problem.

Let's assume $f$ is the cost of a ferris wheel ticket, $s$ is the cost of a snow cone, and $c$ is the cost of a cotton candy.

We bought two ferris wheel tickets, one snow cone, and one cotton candy. After a discount of 6 dollars, the price was 12.75.

This makes the equation $2f + s + c - 6 = 12.75$

Since we know the value of each ferris wheel ticket and the snow cone, we can simplify our equation by substituting in these values.

$2(5) + 3.50 + c - 6 = 12.75\\\\10 + 3.50 + c - 6 = 12.75\\\\7.5 + c = 12.75$

We can now subtract 7.5 from both sides to get the value of $c$ , the cotton candy price.

$7.5 + c - 7.5 = 12.75 - 7.5\\\\c = 5.25$

So the cotton candy cost $5.25.

Hope this helped!

3 0

2 years ago

Read 2 more answers

Simplify. Show your work.<br> (2√(5)+3√(7))^2

frozen [14]

Answer:

The answer is: 83 + 12√35

(a + b)² = a² + 2ab + b²

In (2√5 + 3√7)², a = 2√5, b = 3√7

Just substitute a and b:

(a + b)² = a² + 2ab + b² = (2√5)² + 2 * 2√5 * 3√7 + (3√7)² =

= 2²√5² + 2 * 2 * 3 * √5 * √7 + 3²√7² =

= 4 * 5 + 12 * √(5*7) + 9 * 7 =

= 20 + 12 *√35 + 63 =

= 83 + 12√35

Step-by-step explanation:

3 0

3 years ago

Solve the system of equations using the linear combination method.

IceJOKER [234]

J=25/5+7 and those are your answers i hope i helped
k=2j-13

3 0

3 years ago