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
victus00 [196]
2 years ago
13

A cafeteria charges $1.70 for breakfast and $2.60 for lunch. On a monday, a combined 1,300 breakfast and lunches were sold for $

3,087.50
create a system of eqations for ___b+___L =1,300
options for breakfast are 1, 1.7, 2.6 and the same options for lunch

Mathematics
1 answer:
Vikentia [17]2 years ago
4 0

Answer:1.7b+2.6l=1300

Step-by-step explanation:

You might be interested in
What is the value of x in the equation 3(2x+8)=0
maxonik [38]

Answer:

x = -4

Step-by-step explanation:

3(2x+8)=0

Divide each side by 3

3/3(2x+8)=0/3

2x+8 = 0

Subtract 8 from each side

2x+8-8=0-8

2x = -8

Divide by 2

2x/2 = -8/2

x = -4

7 0
3 years ago
Test the claim that the mean GPA of night students is larger than 3.1 at the .10 significance level. The null and alternative hy
Alborosie

Answer:

H 0 : μ = 3.1    H 1 : μ > 3.1

And this test is defined a a right tailed test since the symbol for the alternative hypothesis H1 is >.

t = \frac{3.13-3.1}{\frac{0.03}{\sqrt{75}}}= 8.66

df = n-1=75-1 =74

The p value is:

p_v = P(t_{74} >8.66) =3.65x10^{-13}

The significance level is: 0.1 or 10%

And since the p value is very low compared to the significance level we have enough evidence to:

Reject the null hypothesis

Step-by-step explanation:

For this case we want to test the claim that mean GPA of night students is larger than 3.1 at the .10 significance level. The claim needs to be on the alternative hypothesis so then we have the following system of hypothesis:

H 0 : μ = 3.1    H 1 : μ > 3.1

And this test is defined a a right tailed test since the symbol for the alternative hypothesis H1 is >.

We have the following info given:

\bar X = 3.13 , s =0.03 , n =75

The statistic to check the hypothesis is given by:

t = \frac{\bar X -\mu}{\frac{s}{\sqrt{n}}}

Replacing the info given we got:

t = \frac{3.13-3.1}{\frac{0.03}{\sqrt{75}}}= 8.66

The degrees of freedom are given by:

df = n-1=75-1 =74

The p value since is a right tailed ted is given by:

p_v = P(t_{74} >8.66) =3.65x10^{-13}

The significance level is 0.1 or 10%

And since the p value is very low compared to the significance level we have enough evidence to:

Reject the null hypothesis

6 0
3 years ago
Which of the following is an example of an improper fraction?
mote1985 [20]
The answer is D. 10/3 
The numerator cannot be more than the denominator.
3 0
3 years ago
Read 2 more answers
HELP I BEGGGGggggggg
Masteriza [31]

Answer:

c = 25m + 40

Step-by-step explanation:

3 0
3 years ago
PLEASE HELP URGENT WILL GIVE BRAINLIEST
Vadim26 [7]
The answer is 2.3716 have a great day y’all
4 0
3 years ago
Other questions:
  • Leonardo correctly answered 0.8 of the questions on his message Liam correctly answered 9/10 of the questions Kiara correctly an
    10·2 answers
  • A bag of grass seed weight 1/7 of a gram. That was enough to cover 1/6 of the lawn. How many grams of seed do they need to cover
    10·1 answer
  • There are three exams in your linear algebra class, and you theorize that your score in each exam (out of 100) will be numerical
    10·1 answer
  • How much would it cost to fence in this property if fencing costs $5.00 per foot?
    11·1 answer
  • What is the least common multiple of 3 and 10
    13·2 answers
  • Hello please help thanks
    11·1 answer
  • The average person's stride lenghth the distance covered by one step is aproximently 2.5 feet long. How many steps would the ave
    14·1 answer
  • M-137.25=30.75<br><br> What number is m?
    11·2 answers
  • The necklace charm below consists of two triangles with the same dimensions. Which equation represents the area of the necklace
    11·1 answer
  • Graph a line to represent the linear equation y=32x−6.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!