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
SCORPION-xisa [38]
2 years ago
13

Last week Sally had thirty-nine dollars. She washed cars over the weekend and now has sixty-four dollars. Write an equation that

represents this situation.
Mathematics
1 answer:
mafiozo [28]2 years ago
4 0

Answer:

64= 39+x

Step-by-step explanation:

x represents the unknown or in this case the money made to get to 64

39 is what she started with and 64 is the final total

You might be interested in
Please help me on part a and after part a I will send you part b​
Effectus [21]
To be honest i’m probably the worst at math lol good luck
5 0
3 years ago
Kamis fitness trainer recommends that she drinks 12 fluid ounces of water 8 times a day. How many cups does kami drink in one da
alexdok [17]

Answer:

12 cups

Step-by-step explanation:

1 cup equals 8 ounces, 1.5 cups equal 12 ounces. Multiply that by 8 you get 12 cups.

5 0
3 years ago
Read 2 more answers
A chemist examines 15 geological samples for potassium chloride concentration. The mean potassium chloride concentration for the
NikAS [45]

Answer:

0.376-2.145\frac{0.0012}{\sqrt{15}}=0.375    

0.376+2.145\frac{0.0012}{\sqrt{15}}=0.377    

And we are 95% confident that the true mean of chloride concentration is between 0.375 and 0.377 cc/ cubic meter

Step-by-step explanation:

Data provided

\bar X=0.376 represent the sample mean for the chloride concentration

\mu population mean (variable of interest)

s=0.0012 represent the sample standard deviation

n=15 represent the sample size  

Confidence interval

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

Since we need to find the critical value first we need to begin finding the degreed of freedom

df=n-1=15-1=14

The Confidence is 0.95 or 95%, the significance would be \alpha=0.05 and \alpha/2 =0.025, and the critical value for this case with a t distribution with 14 degrees of freedom is t_{\alpha/2}=2.145

And the confidence interval is:

0.376-2.145\frac{0.0012}{\sqrt{15}}=0.375    

0.376+2.145\frac{0.0012}{\sqrt{15}}=0.377    

And we are 95% confident that the true mean of chloride concentration is between 0.375 and 0.377 cc/ cubic meter

7 0
3 years ago
What is the volume of this right prism?<br><br> 96 in³<br><br> 60 in³<br><br> 48 in³<br><br> 44 in³
yulyashka [42]

Answer:

96 in³

Step-by-step explanation:

Volume = 2(BHD) / 2

The 2s cancel out

Volume = 3(8)4

Volume = 96

4 0
2 years ago
The cost for a company to produce x t-shirts can be modeled by C(x)=21x-98 and the revenue for selling these shirts can be model
mixer [17]

Answer:

The Answer is C

Step-by-step explanation:

It's C for Apex

5 0
3 years ago
Read 2 more answers
Other questions:
  • 3 please it would really help (4 would give u brainliest)
    12·1 answer
  • If x/2+x=3, then x is what =
    13·2 answers
  • A+b-c=180 Solve the equation
    8·2 answers
  • Which expression defines the arithmetic series 2.3 + 2.6 + 2.9 + for five terms
    11·2 answers
  • - 3 1/5 + (-6 1/2)<br> A -3 2/7<br> B-3 7/10<br> C-9 2/7<br> D-9 7/10
    12·1 answer
  • find the standard deviation of binomial random variable. A die is rolled 18 times and the number of fours that comes up is talli
    7·1 answer
  • 2(x+4)= -5x+1<br> Solve please
    11·1 answer
  • Using the data below, determine the angle for the part of the pie chart the represents the people who prefer dogs?
    15·1 answer
  • 40% of Kim's cookies are chocolate chip flavored. If Kim has 2 chocolate chip cookies, how many cookies does she have total?
    13·2 answers
  • 200% of __ is 26 <br><br> 20% of __ is 15 <br><br> I'm confused on these
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!