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Lilit [14]
3 years ago
13

How do i show the substitution method to solve x=5y-7 and 3y+2y=12

Mathematics
1 answer:
Katena32 [7]3 years ago
5 0

Answer:x=-20  y=4

Step-by-step explanation:

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What is 32 divided by 0.06?
Alex787 [66]

Answer:

800

Step-by-step explanation:

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2 years ago
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the sum of the 10th and 11th terms of an arithmetic sequence is 65 what is the sum of its first 20th terms​
Dmitriy789 [7]

Answer:

this is the answer

Step-by-step explanation:

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6 0
2 years ago
Please help me solve this problem.
Tasya [4]

Let

x-------> total peanuts originally from the bag

we know that

1) Phillip took 1/3 of the peanuts from the bag--------> (1/3)*x

remaining=x-(1/3)*x-------> (2/3)*x

2) Joy took 1/4 of the remaining peanuts-------> (1/4)*[(2/3)*x]----> (1/6)*x

remaining= (2/3)*x-(1/6)*x------> (1/2)*x

3) Brett took 1/2 of the remaining peanuts------> (1/2)*(1/2)*x-----> (1/4)*x

remaining= (1/2)*x-(1/4)*x-------> (1/4)*x

4) Preston took 10 peanuts------> 10

(1/4)*x-10=71----> multiply by 4 both sides----> x-40=284----> x=324 peanuts

5) Total originally peanuts from the bag is equal to 324 peanuts

6) Phillip took (1/3)*x-----> (1/3)*324=108 peanuts

7) Joy took (1/6)*x------> (1/6)*324=54 peanuts

8) Brett took (1/4)*x------> (1/4)*324=81 peanuts

9) Preston took 10

so

check

108+54+81+10=253

remaining=324-253------> remaining=71-------> is correct

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3 years ago
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What are the words?
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