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
fgiga [73]
3 years ago
10

In Aunt Melly's attics there are also spiders and ants, the total of 136 legs and 20 heads. If a spider has 8 legs and an ant ha

s 6 legs, how many spiders and how many ants are there?
Mathematics
1 answer:
anzhelika [568]3 years ago
3 0

Answer:

Spiders=8

Ants=12

Step-by-step explanation:

Spider(s)=8 legs

Ants(a)=6 legs

Total legs=136

Total heads=20

8s+6a=136 (1)

s+a=20 (2)

From (2)

s=20-a

Substitute 20-a into (1)

8s+6a=136

8(20-a)+6a=136

160-8a+6a=136

160-2a=136

-2a=136-160

-2a=-24

a= -24/-2

a=12

Substitute a=12 into (2)

s+a=20

s+12=20

s=20-12

s=8

You might be interested in
What is the first operation used to evaluate 13-2x3+4 divided by 4+4
lisabon 2012 [21]

Answer:

  multiplication

Step-by-step explanation:

The evaluation of ...

  13 -2·3 +4/4 +4

starts with the multiplication, because there are no exponents or parentheses.

  13 -6 +4/4 +4

Next is the division:

  13 -6 +1 +4

Finally, the addition and subtraction:

  7 +1 +4

  8 +4

 12

_____

We have assumed your x is not a variable, but is intended to indicate multiplication. We have also assumed that your "divided by" implies no particular grouping, so that the numerator is the first preceding number and only the first following number is in the denominator.

6 0
3 years ago
What is the value of x?
julia-pushkina [17]

Answer:

B) 9

Step-by-step explanation:

\frac{2x-8}{2x-3} = \frac{x-3}{x}

x = 9

7 0
3 years ago
Read 2 more answers
2*4*8<br> Help again<br> please help
liq [111]
2*4*8 is 64 2*4 is 8 and 8*8 is 64
7 0
3 years ago
Problem 3
stich3 [128]
In the step after -6x+10=4x+20, he moved the terms incorrectly. you have to add 6x to both sides so it would be 10=4x+6x+20 which simplifies to 10=10x+20. subtract 20 from both sides to get -10=10x. divide both sides by 10. the answer is x=-1
8 0
3 years ago
Read 2 more answers
I need the answer please!!!!!!!<br><br><br><br> Solve: -2(x+4)-1=3(x-2)+4
spin [16.1K]

Answer: x= -7/5 procedure: -2x-8-1=3x-6+4       -2x-9=3x-2   -2x-3x= -2+9    -5x= 7   answer: x= -7/5

7 0
3 years ago
Other questions:
  • The table shows the steps for solving the given inequality for x.
    5·1 answer
  • the volume of a candle is 8 cubic inches. what is th volume of a similar candle that is larger by its scale factor of 1.5
    5·1 answer
  • What is x exponent 2 + 3x - 4 = 6X
    5·2 answers
  • Solve for height
    8·1 answer
  • Ben has 18 pears. Sophia has a number of pears two less than Ben. How many pears Sophia has?
    12·2 answers
  • What is 3(m+5)-6=3(m+3)
    14·1 answer
  • WILL GIVE BRAINLIEST Solve for x
    5·1 answer
  • Find the area of this
    11·2 answers
  • Please answer this thanks<br><br>(●´⌓`●)(●´⌓`●)(●´⌓`●)​
    14·1 answer
  • I need help with all question, I will give brainliest.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!