notchasedeibel5935 notchasedeibel5935

16-06-2020
Mathematics

contestada

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 has 6 legs, how many spiders and how many ants are there?

Respuesta :

adioabiola adioabiola

18-06-2020

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

Answer Link

Otras preguntas

for what values of x does the graph of f(x) have a vertical asymptote? f(x)=3/x²+x-2 a. 1, -2 b. 3, 0 c. 3, -2 d. -1, 2

Flying against the jetstream a jet travels 8100 miles in nine hours flying with the jet stream the same jet travels 6100 miles in five hours what is the rate of

How did imperialism Spain change the Philippines

Gianna is going to throw a ball from the top floor of her middle school. When she throws the ball from 48feet above the ground, the function h(t)=−16t2+32t+48 m

Which of the following expressions are equivalent? I. 4(6 - x) II. 4 + (6 - x) III. 6(4 - x) IV. (6 - x) + (6 - x) + (6 - x) + (6 - x) A. I and IV B. I, I

What is 240 divided by 6 using a double number line

Abigail bought 15 chicken wings for $3. What was the cost of the wings in wings per dollar? Express your answer in simplest form.

17 is 85% of WHAT number

1. What are the four Middle Colonies?

please help!!!!!!!!!!!!!!!!!!!!Write the expression as a cube of a monomial.a64x^9Write the expression as a cube of a monomial.c–0.008b^6Write the expression as