Answer:
y = 3x equation represent direct proportion.
Step-by-step explanation:
Direct Proportion:
If x value increases then y value also increases. This is called direct variation or y is directly proportional to x.
For y = 3x
x = 1 , then y = 3
x = 2 , then y = 6
So on, here x is increasing then y is also increases.
Hence, y = 3x equation represent direct proportion.
Inverse Proportion:
If x value increases then y value decreases. This is called indirect variation or y is inversely proportional to x.
For y = -2x + 1
x = 1 , then y = -1
x = 2 , then y = -3
So on, here x is increasing then y decreases.
Hence y = -2x + 1 is Indirect variation.
Answer:
x=3
y=4
Step-by-step explanation:
By moving x to the right-hand side of the first equation we get y=-x+7, which we then substitute for y in the second equation. Solving gives x=3, which we can then put into the first equation and get y=4.
Answer:
Step-by-step explanation:
It is not A because books + magazines is related to the 6
It is not C because books cost $5.5 and magazines cost $3
B and D are very similar, but is is not D because the ≤ $40 is incorrect since it clearly states that Bonney will spent less than 40 < 40
so that leaves B <<<-------------
5.5b + 3m < 40 5.5 times books plus 3 times mags will be less than 40
b + m ≥ 6 the total number of books plus mags will be at least 6
or could be more 6
The final 4 is in the numerator, not the denominator.
5² × 4 × 5 × 4² / 5 (4)
= 25 × 4 × 5 × 16 / 5 × 4 . . . . . exponents are computed first
= 100 × 5 × 16 / 5 × 4 . . . . . . . multiplication and division left to right in order
= 500 × 16 / 5 × 4
= 8000 / 5 × 4
= 1600 × 4
= 6400
Answer:
Step-by-step explanation: