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
Alexandra [31]
3 years ago
11

Solve each equation. 1.) 7x=8x+12 2.) 34-2x=7x 3.) -x=7x-56

Mathematics
2 answers:
lutik1710 [3]3 years ago
8 0
1) 7x-8x=8x+12-8x= -12 (x=-12)
2) -2x+34=7x x=34/9
3)-x-7x=7x-56-7x x=7
Elza [17]3 years ago
4 0

Answer:

1: -12

2: 3 7/9

3: 7

Step-by-step explanation:

You might be interested in
What is the product?
IRINA_888 [86]
The answer for the product is D) 2X10^5

4 0
3 years ago
Read 2 more answers
PLZZ HELPP!! Water is poured from a 1.5 L water bottle into an empty glass until both the glass and the bottle are 3/4 full. Wha
Natalka [10]

Answer:

0.5 L

Step-by-step explanation:

volume of bottle: 1.5 L

amount of water = 1.5 L

volume of glass: x

3/4 full is the same as 0.75 full

vol of water in bottle + vol of water in glass = total vol of water

      0.75(bottle)          +       0.75(glass)          =           1.5

0.75(1.5) + 0.75x = 1.5

0.75x = 0.375

x = 0.5

5 0
3 years ago
Read 2 more answers
Suppose a researcher is estimating the proportion of trees showing signs of disease in a local forest. They randomly sample 150
Serhud [2]

Answer:

0.167 - 1.96 \sqrt{\frac{0.167(1-0.167)}{150}}=0.107

0.167 + 1.96 \sqrt{\frac{0.167(1-0.167)}{150}}=0.227

And the 95% confidence interval would be given (0.107;0.227).

Step-by-step explanation:

Information given

X= 25 number of trees with signs of disease

n= 150 the sample selected

\hat p=\frac{25}{150}= 0.167 the proportion of trees with signs of disease

The confidence interval for the true proportion would be given by this formula

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

For the 95% confidence interval the significance is \alpha=1-0.95=0.05 and \alpha/2=0.025, and the critical value would be

z_{\alpha/2}=1.96

And replacing we got:

0.167 - 1.96 \sqrt{\frac{0.167(1-0.167)}{150}}=0.107

0.167 + 1.96 \sqrt{\frac{0.167(1-0.167)}{150}}=0.227

And the 95% confidence interval would be given (0.107;0.227).

6 0
3 years ago
What is the range of the function shown in the graph below?
navik [9.2K]

Answer:

A

Step-by-step explanation:

5 0
2 years ago
What is 29.99 after sales tax of 6.25
irakobra [83]
Your tax will be $1.87 and your total cost will be $31.86
3 0
3 years ago
Other questions:
  • The table shows the number of students in a class who have allergies and/or have asthma:
    15·2 answers
  • Write Standard from <br> y=-9/5x+3 ??
    6·2 answers
  • What value of z makes 7+5(z-3)=22 a true statement
    5·1 answer
  • What is the area of an isosceles right triangle with a hypotenuse of 16cm
    12·1 answer
  • heSellsSeaShells is an ocean boutique offering shells and handmade shell crafts on Sanibel Island in Florida. Find the price She
    15·1 answer
  • what is the volume of is a rectangular prism that is 14 inches long, 7 inches wide, and 10 inches high?
    11·1 answer
  • Find the area of each regular polygon. Round your answer to the nearest tenth if necessary.
    12·1 answer
  • George wants to rent a car for a road trip with his friends. He checked the rentals with two companies. Company A charges a non-
    5·1 answer
  • I need help solving #9 &amp; #11! It's geometry but I'm just really stuck<br><br>​
    13·1 answer
  • Write the Inequality shown in the diagram below
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!