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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

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4 0
2 years ago
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Answer:

(4x+5y=7

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3 0
2 years ago
A company is evaluating a new reading program that is supposed to improve test scores. The box plots show the results of reading
Zepler [3.9K]

Answer:

I would go with C.  

Step-by-step explanation:

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8 0
2 years ago
Carli and Angela share a cell phone plan and split the bill each month. Last month, their total bill was $109. Carli went over h
Vikentia [17]
For this case, the first thing we must do is define variables.
 We have then:
 x = Carli's bill
 y = Angela's bill
 We have then:
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 "Carli went over her data limit on her phone, so her share of the bill was $ 15 more than Angela's"
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 Answer:
 
A system of equations that represents this situation is:
 
x + y = 109
 
x = y + 15
8 0
3 years ago
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vladimir1956 [14]

Answer:

6

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2 years ago
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