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Vedmedyk [2.9K]
2 years ago
6

The math team wraps gifts as a way to raise money for traveling to competitions. They offer two choices: a plain wrapping or a d

ecorative wrapping with bows. The table represents the money raised over a busy shopping weekend.
Which statement describes the amounts the team charged for wrapping gifts?
Mathematics
2 answers:
VladimirAG [237]2 years ago
5 0
The information of the table permits you to state these equations:

10x + 9 y = 47

25x + 12 y = 86

16x + 12 y = 68


By subtracting the third equation from the first, you get:

9x = 18

=> x = 18 / 9 = 2


Now using any of the equations you can obtain the value of y.

I will use the first equation:

10x + 9y = 47 => 9y = 47 - 10 (2)  = 27

=> y = 27 / 3 = 3


Those results are interpreted as they charge $2 for each plain wrapping and $3 for each decorative wrapping.


Then, the correct choice is " the team charged $2 to wrap a gift with no bow and $3 to wrap a gift with no bow"
Mrrafil [7]2 years ago
5 0

Answer:

The team charged $2 to wrap a gift with no bow and $3 to wrap a gift with a bow. ( B.)

Step-by-step explanation:

I hope I help you.

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A new car is purchased for 22400 dollars. The value of the car depreciates at 11% per year. To the nearest tenth of a year , how
m_a_m_a [10]

Answer:

t= 12.9 years

Step-by-step explanation:

Value after t years = initial value ( 1 - r )^t

Where,

Value after t years= $5000

Initial value = $22,400

r= depreciation rate = 11%

t= length of time (years)

Value after t years = initial value ( 1 - r )^t

5000 = 22,400 ( 1 - 0.11)^t

5000 = 22,400(0.89)^t

Divide both sides by 22,400

(0.89)^t = 5000 / 22,400

(0.89)^t = 0.2232

Take the log of both sides

t log 0.89 = log 0.2232

t= log 0.2232 / log 0.89

= -0.6513 / -0.0506

= 12.87

t= 12.9 years

5 0
2 years ago
0.17 =<br> 0.1090 =<br> ,0.050 =
Pavel [41]

Step-by-step explanation:

I have no idea what you are asking to do lol

8 0
2 years ago
Add 4 to n then divide by 5
Ket [755]
The equation used for this is

\frac{(4+n)}{5}=

if you knew n then we could solve this equation 
4 0
1 year ago
You are testing the claim that the mean GPA of night students is different from the mean GPA of day students. You sample 30 nigh
lorasvet [3.4K]

Answer:

Step-by-step explanation:

This is a test of 2 independent groups. The population standard deviations are not known. Let μ1 be the mean GPA of night students and μ2 be the mean GPA of day students.

The random variable is μ1 - μ2 = difference in the mean GPA of night students and the mean GPA of day students.

We would set up the hypothesis.

The null hypothesis is

H0 : μ1 = μ2 H0 : μ1 - μ2 = 0

The alternative hypothesis is

H1 : μ1 ≠ μ2 H1 : μ1 - μ2 ≠ 0

Since sample standard deviation is known, we would determine the test statistic by using the t test. The formula is

(x1 - x2)/√(s1²/n1 + s2²/n2)

From the information given,

x1 = 2.35

x2 = 2.58

s1 = 0.46

s2 = 0.47

n1 = 30

n2 = 25

t = (2.35 - 2.58)/√(0.46²/30 + 0.47²/25)

t = - 1.82

The formula for determining the degree of freedom is

df = [s1²/n1 + s2²/n2]²/(1/n1 - 1)(s1²/n1)² + (1/n2 - 1)(s2²/n2)²

df = [0.46²/30 + 0.47²/25]²/[(1/30 - 1)(0.46²/30)² + (1/25 - 1)(0.47²/25)²] = 0.00025247091/0.00000496862

df = 51

We would determine the probability value from the t test calculator. It becomes

p value = 0.075

Alpha = 5% = 0.05

Since alpha, 0.05 < than the p value, 0.075, then we would fail to reject the null hypothesis.

4 0
2 years ago
It takes 48 pounds of seeds to completely plant a five acre field, how many acres can be planted per pound?
lana [24]

Answer:

9.6

Step-by-step explanation:

So you divide 48 Divided by 5 wich equals 9.6 HOPE THIS HELPS

4 0
2 years ago
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