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
scoundrel [369]
4 years ago
11

4x-10=30 2n-7=30 S/3+2=4

Mathematics
1 answer:
emmasim [6.3K]4 years ago
6 0

Answer:

x=10 n=18.5 s=6

Step-by-step explanation:

4x-10=30

Add 10 to both sides

4x-10+10=30+10

4x=40

Divide by 4 on both sides

(4x)/4=40/4

x=10

2n-7=30

Add 7 to both sides

2n-7+7=30+7

2n=37

Divide by 2 on both sides

(2n)/2=37/2

n=18.5

(s/3)+2=4

Subtract 2 from both sides

(s/3)+2-2=4-2

(s/3)=2

Multiply by 3 on both sides

3s/3=2*3

s=6

You might be interested in
Can 3 times the sum of r and d squared minus 2 times the sum of r and d squaredbe simplified
ohaa [14]
Yes You Can Add On 3 Twice Which Is 10
8 0
3 years ago
Read 2 more answers
Somebody who knows how to do this?? plz answer all the questions correctly thanks!
Ksju [112]

Answer:

a) 5/21

b) 4/21

c) 4/21

d) 8/21

Step-by-step explanation:

total number of coins: 21

a) number if dollars: 5

therefore fraction is 5/21

b) number of quarters: 4

therefore fraction is 4/21

c) number of dimes: 4

therefore fraction is 4/21

d) number of nickels: 8

therefore fraction is 8/21

4 0
3 years ago
Ghdhdjdjdhdghxgxhxhsbzhshzbshzhhz
Ipatiy [6.2K]
8/10= 0.8 tests per minute
4 0
3 years ago
A group of 85 people were asked whether or not they prefer a bagel or a muffin for breakfast and whether or not they prefer milk
gladu [14]

Answer:

The answer(s) would be WY/WZ, or WYZ (If this is multiple choice)

Step-by-step explanation:

The reasoning is that in the "IRL Equation" the polls showed that orange juice was prefered over milk, and didn't matter whether they wanted a bagel or muffin. All that matters in this equation is that it is one sided (For the 1st poll that is) and now you are able to narrow down the possibilities of the answer(s).

5 0
3 years ago
Points (3,1) and (1,4) lie on line k. What is the slope of the line that is perpendicular to k?
denis-greek [22]
First we need to find the slope of line k.  Using the slope formula, we fill in accordingly: m= \frac{4-1}{1-3}.  The slope is -3/2.  The slope of a line that is perpendicular to line k will have the opposite sign (so, positive) and will be the reciprocal of the line k's slope (so, 2/3).  You could also say, more "mathematically legal", that the product of the slopes of perpendicular lines is -1, but it's easier to just say that they are opposite reciprocals.  The slope you're looking for is 2/3.  Choice 3 above.
6 0
3 years ago
Other questions:
  • How many terms are in the expression a3 + 3a2b - 4ab - 11b + 7?<br><br> 7<br> 4<br> 5<br> 6
    12·2 answers
  • Please answer.........
    6·1 answer
  • Sam and Maria were shopping for school supplies. Each purchased different quantities of the same notebook and thumb drive. Sam b
    15·1 answer
  • What is the simplified form of the equation fraction 3 over 5 n minus fraction 4 over 5 equals fraction 1 over 5 n?
    13·2 answers
  • Which inequality is equivalent to -3x &lt; -12?
    8·1 answer
  • Complete the comparison below. <br> 0.65 ? 68%
    10·2 answers
  • Can someone explain to me what b means? im confused
    8·1 answer
  • The formula K=C+273.15
    14·2 answers
  • Palawbhehrht awnser yes or mo
    13·1 answer
  • Rearrange the formula below to make x the subject. α y+1=2x - 10/x+1​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!