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elena-s [515]
3 years ago
11

Can you solve a system by substitution without a given variable?

Mathematics
1 answer:
VMariaS [17]3 years ago
5 0
I think so. But, the only way you can simplify is is if you add the like terms, in this case, -4x and -11x. #1 will simplify to -15x=36. you cannot simplify the other one any further. <span />
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HENRY COUNTED 350 LOCKERS IN HIS SCHOOL.
telo118 [61]
Using the method of checking each answer to see if it is possible that they are correct. 

The 3 in the 350 can also be referred to as just 300 because it a 3 in the hundreds place. Also because if the rest of the numbers following the "3" were zeros the number would be 300.
The 3 in the 403 can be just referred to as 3 because there are no other numbers following it, and the 3 is in the ones place. 

A. THE 3 IN 350 IS 10 TIMES THE VALUE OF THE 3 IN 403
-Saying that 300 is ten times greater than 3-
To check that would mean that:
300 = 3x10
300=30
300≠30
ANSWER A DOES NOT WORK BECAUSE 300 DOES NOT EQUAL 30

B: THE 3 IN 350 IS 100 TIMES THE VALUE OF THE<span> 3</span><span> IN 403
</span>-Saying that 300 is one hundred times greater than the 3-
To check that would mean that:
300=3(100)
300=300
ANSWER B WORKS AND IS THE CORRECT ANSWER BECAUSE 300=300

C: THE 3 IN 403 IS 10 TIMES THE VALUE OF THE 3 IN 350
-Saying that the 3 in ten times greater than the value of 300-
To check that would mean that:
3=300x10
3=3000
3≠3000
ANSWER C DOES NOT WORK BECAUSE 3 IS NOT EQUAL TO 3000

<span>D: THE 3 IN 403 IS 100 TIMES THE VALUE OF THE 3 IN 350
-Saying that 3 is one hundred times greater than 300-
To check that would mean that:
3=300(100)
3=30000
3</span>≠30000
ANSWER D DOES NOT WORK BECAUSE 3 IS NOT EQUAL TO 30000

THE CORRECT ANSWER IS B

5 0
3 years ago
Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Grace [21]

Answer:

20%

Step-by-step explanation:

9/45

4 0
3 years ago
Evaluate the polynomial for x=-4
kap26 [50]

Answer:

The answer is

<h2>1225</h2>

Step-by-step explanation:

4x² + 5 - 6x³ + 3x⁴ - x

x = - 4

Substitute the value of x into the expression

That's

4(-4)² + 5 - 6(-4)³ + 3( 4 )⁴ - - 4

Simplify

4(16) + 5 - 6( -64) + 3( 256) + 4

64 + 5 + 384 + 768 + 4

We have the final answer as

<h3>1225</h3>

Hope this helps you

8 0
3 years ago
Between which 2 integers does the negative square root of 33 lie?
igomit [66]
Umm I think it’s b -6 and -7 or -5 and -6
4 0
3 years ago
Read 2 more answers
Aaron scored 452.65 marks out of 600 in the final examination. How many marks did he lose?
lana [24]

Answer:

He lost 147.35 marks

Step-by-step explanation:

Take the total marks and subtract the marks he got to find the marks he lost

600-452.65= 147.35

7 0
3 years ago
Read 2 more answers
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