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
hjlf
3 years ago
12

10 – 7x = 2 – 8x What is x

Mathematics
2 answers:
SVETLANKA909090 [29]3 years ago
7 0

Answer:

x = 12

Step-by-step explanation:

10 – 7x = 2 – 8x

– 7x + 8x = 2 + 10

x = 12

Nuetrik [128]3 years ago
4 0
-8
You first have to subtract and add from both sides meaning 10-7x=2-8x
+8x +8x
10+x=2
-10 -10
X=-8
Then you check 10-7(-8)=2-8(-8)
66=66
You might be interested in
A pyramid has a base 16 inches x 16 inches and a slant height of 10 inches. what is the volume in cubic inches
gizmo_the_mogwai [7]

Answer:

  512 in³

Step-by-step explanation:

The height perpendicular to the base is the leg of a right triangle with hypotenuse 10 in and other leg 8 in. Using the Pythagorean theorem, we can find it as ...

  h² +8² = 10²

  h² = 100 -64 . . . . . subtract 8²

  h = 6 . . . . . . . . . . . . take the square root of 36

Then the volume is found using ...

  V = (1/3)Bh = (1/3)(16 in)²(6 in) = 512 in³

The volume is 512 cubic inches.

_____

The 8-inch dimension used above comes from half the distance between the center of one side of the base to the center of the opposite side. (16 in)/2 = 8 in.

4 0
3 years ago
BRAINLIST BRAINLIST BRAINLIST
musickatia [10]

Answer:

0.5 onces

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Answer all parts in the question below. Be sure to show all your work. Remember NO WORK, NO CREDIT EVEN IF THE ANSWER IS CORRECT
liraira [26]

I'm sorry I need the points lol anyways I hope you got the answer to it

3 0
3 years ago
The Wall Street Journal reported that automobile crashes cost the United States $162 billion annually (2008 data). The average c
ivanzaharov [21]

Answer:

n=(\frac{2.326(500)}{120})^2 =93.928 \approx 94

So the answer for this case would be n=94 rounded up to the nearest integer

Step-by-step explanation:

Information given

\bar X represent the sample mean

\mu population mean (variable of interest)

\sigma= 500 represent the population standard deviation

n represent the sample size  

Solution to the problem

The margin of error is given by this formula:

ME=z_{\alpha/2}\frac{s}{\sqrt{n}}    (a)

And on this case we have that ME =120 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (b)

The confidence2 level is 98% or 0.98 then the significance level would be \alpha=1-0.98=0.02 and \alpha/2=0.01, the critical value for this case would be z_{\alpha/2}=2.326, replacing into formula (b) we got:

n=(\frac{2.326(500)}{120})^2 =93.928 \approx 94

So the answer for this case would be n=94 rounded up to the nearest integer

8 0
3 years ago
What is 7.75 in word form?
iris [78.8K]
Seven and Seventy-Five Hundredths
3 0
3 years ago
Read 2 more answers
Other questions:
  • Five friends had lunch together. Their lunch bill included these amounts: $8.79, $5.15, $11.73, $2.49, and $9.05. Estimate the t
    7·2 answers
  • Please help!
    14·2 answers
  • What is the value of the expression 3\cdot2+2^33⋅2+2 <br><br> 3
    5·1 answer
  • To bake one cake, Drew uses 18 ounces of flour. He has 850 ounces of flour. Let y represent the ounces of flour left and x repre
    11·2 answers
  • Mr. Frankel bought 7 tickets to a puppet show and spent $43. He bought a combination of child tickets for $4 each and adult tick
    8·2 answers
  • The following table shows the percentage of children in the United States between the ages of 3 and 5 who are enrolled in prepri
    6·1 answer
  • An empty can weighs 30 grams. The weight of the same can filled with liquid is 47.3 grams. Which equation could be used to find
    13·1 answer
  • Solve: 3/x-4 &gt;0<br> x &lt; 4<br> x &gt; -4<br> x &gt; 4<br> x &lt; -4
    12·2 answers
  • The diameter of a circle is 8 cm. find it's area in terms of pi​
    13·2 answers
  • Which polynomial is represented by the algebra tiles?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!