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
DaniilM [7]
3 years ago
12

PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!

Mathematics
1 answer:
balu736 [363]3 years ago
5 0

x equals 4 and y equals 5 . so the formula would be 5x+12y=80 and if we need 4 of the small boxes we sub x for 4 and we get 5(4) =20. Next, 80 minus 20 is 60, and the equation would now be 12y=60. we now divide both sides by 12 and we get left with y=5.  5x + 12y = 80  5(4) + 12(5)=80  20+60=80. That is all.  I hope that doesn't sound confusing

You might be interested in
Find 100%, given that 40% is 98
Pavlova-9 [17]
If 40% reps 98
100% will rep (98/50)*100 = 245
5 0
3 years ago
A private and a public university are located in the same city. For the private university, 1038 alumni were surveyed and 647 sa
Snezhnost [94]

Answer:

The difference in the sample proportions is not statistically significant at 0.05 significance level.

Step-by-step explanation:

Significance level is missing, it is  α=0.05

Let p(public) be the proportion of alumni of the public university who attended at least one class reunion  

p(private) be the proportion of alumni of the private university who attended at least one class reunion  

Hypotheses are:

H_{0}: p(public) = p(private)

H_{a}: p(public) ≠ p(private)

The formula for the test statistic is given as:

z=\frac{p1-p2}{\sqrt{{p*(1-p)*(\frac{1}{n1} +\frac{1}{n2}) }}} where

  • p1 is the sample proportion of  public university students who attended at least one class reunion  (\frac{808}{1311}=0.616)
  • p2 is the sample proportion of private university students who attended at least one class reunion  (\frac{647}{1038}=0.623)
  • p is the pool proportion of p1 and p2 (\frac{808+647}{1311+1038}=0.619)
  • n1 is the sample size of the alumni from public university (1311)
  • n2 is the sample size of the students from private university (1038)

Then z=\frac{0.616-0.623}{\sqrt{{0.619*0.381*(\frac{1}{1311} +\frac{1}{1038}) }}} =-0.207

Since p-value of the test statistic is 0.836>0.05 we fail to reject the null hypothesis.  

6 0
3 years ago
Need help with number 60
vampirchik [111]
You could write 42/20 for #60.
5 0
3 years ago
A vertical pole 5ft long casts a shadow of 2ft at the same time a nearby tree casts a shadow of 10ft, how y’all is the tree?
SSSSS [86.1K]

Answer: The tree is 4 feet tall.

Step-by-step explanation: 5/2=x/10

2 x 10=20

20/5=4

5 0
3 years ago
A slice is made parallel to the base of a square pyramid.
Ivanshal [37]

Answer:

a) Triangle.

b) Triangle.

c) The area is 110 cm.

Step-by-step explanation:

The shape is given because it is a cross section of a Pyramid which we can see shaded in grey.

The area is given by the base times hight devided by 2. So 10cm * 22cm/2= 110cm.

Hope this helped ;)

6 0
3 years ago
Other questions:
  • What is the volume of the cylinder?
    5·2 answers
  • What is the answer to this problem
    15·2 answers
  • 6. You must start with what mathematical operator to create a formula? A. + B. - C. * D. =
    7·1 answer
  • Sonja went hiking for 4 hours. For how many minutes did she go hike
    10·2 answers
  • NEED HELP!! PLease!!
    8·2 answers
  • Simplify: 6 to the the 6th power multiplied by 6 to the second power​
    10·1 answer
  • On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21. What can you conclude? 2(0.21) = 0.4
    8·1 answer
  • 2. 8.SP.1.2
    15·1 answer
  • Yunika downloaded two applications for $2.99 each to her cell phone. The remaining applications that Yunika purchased cost $1.99
    9·2 answers
  • Find x in this 45°-45°-90° triangle.<br><br> x =
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!