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saw5 [17]
3 years ago
13

9. Which method would be the best to solve the following system of equations?

Mathematics
1 answer:
kotykmax [81]3 years ago
3 0
I think it’s A Substitution
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Steve buys 21lbs of grapefruit and 3lbs of oranges for $7.20. Kennedy buys 4lbs of grapefruit and 2lbs or oranges for $8.80. How
dalvyx [7]

Answer:

19.6

Step-by-step explanation:

21+3=24

24-7.20=16.8

4+2=6

6-8.80=-2.8

19.6

7 0
3 years ago
Read 2 more answers
What is the dollar value of 2 pennies and 3 dimes? What is the dollar value of p
Alex Ar [27]

Answer:

32 cents? This is a weird phrased question!

Step-by-step explanation:

6 0
3 years ago
AT the local zoo, the aquarium can be seen from the Reptile Room and the Amphibian Arena. What is the total area of both rooms a
BartSMP [9]

Answer:

The total area of both rooms and the aquarium is equal to 10,932 ft²

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

the length sides of Aquarium are

(83-32) x (72-52)-----> 51 ft x 20 ft

Area reptile room=(83*72)-area of aquarium----> 83*72-51*20---> 4,956 ft²

[ total area of both rooms]=2*4,956-----> 9,912 ft²

I'm assuming that the two areas are equal

Area of aquarium=51*20=1,020 ft²

therefore

the total area of both rooms and the aquarium is equal to

9,912 ft²+1,020 ft²=10,932 ft²

6 0
3 years ago
A tree 7ft tall grows an average pf 6in each year. which equation models the trees height h after x years?
sergejj [24]

Answer:

A)  h=0.5x+7

Step-by-step explanation:

given

initial height = 7 feet

growth rate = 6 in = 0.5 feet / year

let # of growing years = x

For a linear growth rate:

height after x years, h = initial height + (# of growing years) * (growth rate)

substiuting the values above into this equation

h = 7 feet + (x years) * (0.5 feet/year)

or

h = 7 + 0.5x (rearranging)

h = 0.5x + 7

3 0
4 years ago
What is the ratio 8 to 14 as a fraction in dimplest form
irga5000 [103]

Answer:

\frac{4}{7}

Step-by-step explanation:

8:14

divide by 2

4:7

so 4/7

7 0
3 years ago
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