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ad-work [718]
3 years ago
15

Daikwon and Chris are about to record a new CD. They have a choice between two back up bands. One band charges $50 plus $20 for

each take. The second band charges S20 plus $25 for each take.
Mathematics
1 answer:
MrRa [10]3 years ago
5 0

Answer:

The second band

Step-by-step explanation:

50+20=70

20+25=45

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HELP REAL QUICK PLS TY
Veronika [31]

Answer:

Step-by-step explanation:

the area is L x W so its 42cm

7 0
3 years ago
The function g(x) = 12,500(0.91)x represents the value of a piece of farm equipment after x years. Approximately when will its v
topjm [15]

Answer:

B. 7.3 years

Step-by-step explanation:

The question is wrong. The correct function is :

g(x)=12500(0.91)^{x}

We have the function g(x) that represents the value of a piece of farm equipment after x years.

This means that when x=0 its original value is :

g(0)=12500(0.91)^{0}=12500

Now we want to calculate approximately when will its value be half its original value. Then, we write :

\frac{12500}{2}=6250

6250 is half of its original value. We need to find x that satisfies the following equation :

g(x)=6250=12500(0.91)^{x}

Solving for x :

6250=12500(0.91)^{x} ⇒

0.5=(0.91)^{x}

Now we apply natural logarithm to each side of the equation :

ln(0.5)=ln[(0.91)^{x}]

Using logarithm properties :

ln(0.5)=ln[(0.91)^{x}] ⇒

ln(0.5)=x[ln(0.91)]

x=\frac{ln(0.5)}{ln(0.91)} ⇒

x ≅ 7.3496

The correct option is B. 7.3 years

4 0
3 years ago
PLEASE HELLLP!!!!! If x+7=2y and y=2x−1, what is the value of y? (NOT 13)
oee [108]

Answer:

(C) 5

Step-by-step explanation:

x+7=2y

<em>Subtract 7 from both sides</em>

x=2y-7

2y-7=x

<em>Multiply both sides by 2</em>

4y-14=2x

y=2x−1

<em>Add 1 to both sides</em>

y+1=2x

<u>Combine equations:</u>

y+1=4y-14

<em>Add 14 to both sides</em>

y+15=4y

<em>Subtract y from both sides</em>

15=3y

3y=15

<em>Divide both sides by 3</em>

y=5

<u>The answer is </u><u>(C) 5.</u>

5 0
3 years ago
How can i determine the sale price if you were given the regular price and percent of markdown
algol [13]
You would multiply the sales regular price by the percent and then subtract your answer from the regular sale price. For example, if something cost $499 and the sales price was 15% off, you would multiply 499 by 0.15 and then you would get 74.85.
7 0
3 years ago
Read 2 more answers
Solve the following equation-7x-4y=-4 -9x-5y=-6
maks197457 [2]

Answer:

\boxed{x = 4~~and~~ y = -6}

.

Step-by-step explanation:

-7x - 4y = -4 (times 5) -35x - 20y = -20

-9x - 5y = -6 (times 4) -36x - 20y = -24

.

Eliminate both equations

-35x - 20y = -20

<u>-36x - 20y = -24 </u>  <u>  </u>

x = 4

.

Substitute the value of x to one of equations

-7x - 4y = -4

-7(4) - 4y = -4

-28 - 4y = -4

-4y = - 4 + 28

-4y = 24

y = \frac{24}{-4}

y = -6

3 0
3 years ago
Read 2 more answers
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