1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Luda [366]
2 years ago
15

John had $165 in savings. He spent 20% of his savings on a new video game.

Mathematics
2 answers:
Oksi-84 [34.3K]2 years ago
8 0

Answer:John spent $33.00


Step-by-step explanation: Just multiply:    165 * 0.20= 33

quester [9]2 years ago
4 0
He spent 33$ because 165*0.2=33
You might be interested in
Divide <br><br> (x^2 - 13x +40) divided by (x- 6)
kodGreya [7K]

Answer:

The quotient is: x-7

The remainder is: -2

Step-by-step explanation:

We need to divide (x^2 - 13x +40) divided by (x- 6)

The quotient is: x-7

The remainder is: -2

The division is shown in the figure attached

3 0
3 years ago
Does the bathroom have enough water and shampoo for 888 long-haired members and 777 short-haired members?
Dovator [93]

Complete question :

Members of the swim team want to wash their hair. The bathroom has less than 5600 liters of water and at most 2.5 liters of shampoo. 70L+ 60S < 5600 represents the number of long-haired members L and short-haired members S who can wash their hair with less than 5600 liters of water. 0.02L + 0.01S < or equal to 2.5 represents the number of long-haired members and short-haired members who can wash their hair with at most 2.5 liters of shampoo. Does the bathroom have enough water and shampoo for 8 long-haired members and 7 short -haired members?

Answer:

Yes , there is enough water and shampoo

Step-by-step explanation:

Given that:

Number of long and short hair member who can wash their hair with less than 5600 litres of water.

70L+ 60S < 5600

Number of long and short hair member who can wash their hair with at most 2.5 litres of shampoo

0.02L + 0.01S ≤ 2.5

To check if bathroom has enough water and shampoo for 8 long haired and 7 short haired members.

Water check:

70L+ 60S < 5600

L = 8 ; S = 7

70(8) + 60(7) < 5600

560 + 420 < 5600

980 < 5600

Inequality constraint is satisfied ; There is enough water.

Shampoo check:

0.02L + 0.01S ≤ 2.5

L = 8 ; S = 7

0.02(8) + 0.01(7) ≤ 2.5

0.16 + 0.07 ≤ 2.5

0.23 ≤ 2.5

Inequality constraint is satisfied ; There is enough shampoo

8 0
3 years ago
What are the properties to the following
masya89 [10]

Answer:

1. Associative Property of Multiplication

2. Multiplicative Identity Property

3. Multiplicative Inverse Property

4.Additive Identity Property

5. Associative Property of Addition

6. Additive Inverse Property

8 0
3 years ago
Read 2 more answers
5
sashaice [31]

Answer:

An 8-pack of frozen waffles costs $6.91. What is the unit price, rounded to the nearest cent?

Step-by-step explanation:

it is jashdsdhkjasdhjsd

6 0
3 years ago
The average yield of the standard variety off soybeans per acre on a farm in a region is 48.8 bushels per acre, with a standard
I am Lyosha [343]

Answer:

z=\frac{53.4-48.8}{\frac{12}{\sqrt{36}}}=2.3  

p_v =P(Z>2.3)=1-P(Z  

If we compare the p value and the significance level given \alpha=0.01 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, so we can conclude that the true mean is not significantly higher than 48.8 at 1% of signficance.  

Step-by-step explanation:

1) Data given and notation  

\bar X=53.4 represent the sample mean

\sigma=12 represent the population standard deviation assumed

n=36 sample size  

\mu_o =48.8 represent the value that we want to test  

\alpha=0.01 represent the significance level for the hypothesis test.  

z would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

2) State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the true mean is higher than 48.8, the system of hypothesis would be:  

Null hypothesis:\mu \leq 48  

Alternative hypothesis:\mu > 48  

Since we assume that know the population deviation, is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:  

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}} (1)  

z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

3) Calculate the statistic  

We can replace in formula (1) the info given like this:  

z=\frac{53.4-48.8}{\frac{12}{\sqrt{36}}}=2.3  

4)P-value  

Since is a right tailed test the p value would be:  

p_v =P(Z>2.3)=1-P(Z  

5) Conclusion  

If we compare the p value and the significance level given \alpha=0.01 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, so we can conclude that the true mean is not significantly higher than 48.8 at 1% of signficance.  

3 0
3 years ago
Other questions:
  • When writing a two column proof you should always start with ________ Information.
    10·2 answers
  • If r=12 and t=20, find S.
    14·2 answers
  • Find the area of a triangle whose base is 5cm and whose height is 12cm.
    15·2 answers
  • Two less than the quotient of a number and 3 is 17. What is the number? Let n be the unknown number. The equation is . The numbe
    6·1 answer
  • Reagan can walk 24 dogs in 8 hours. How many dogs can Regan walk in 10 hours?
    13·2 answers
  • p(a) = 0.60, p(b) = 0.20, and p(a and b) = 0.15 what is p(a or b) choices: A. 0.12, B. 0.65, C. 0.40, or D. 0.80 (Note- This is
    11·1 answer
  • What is the answer? (Number 8)
    9·2 answers
  • Helppppppp pleaseeee!!!!!!!!!!!!!!!
    10·1 answer
  • Natalia can serve 120 volleyballs in 8 minutes and 330 volleyballs in 22 minutes. How many volleyballs can Natalia serve per min
    12·1 answer
  • I will give brainliest to whoever helps me with this question. Also, if you could please explain to me how you solved it I would
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!