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frozen [14]
2 years ago
13

0.8-4x=-0.4y 6x+0.4y=4.2 Which of the following shows the system with like terms aligned? 4x - 0.4y = -0.8 6x + 0.4y = 4.2 -4x +

0.4y = 0.8 6x + 0.4y = 4.2 -4x + 0.4y = -0.8 6x + 0.4y = 4.2 -4x + 0.4y = -0.8 6x - 0.4y = 4.2
Mathematics
2 answers:
Brut [27]2 years ago
3 0

Answer: The correct option is option third .

Explanation:

The given equation are,

0.8-4x=-0.4y\\6x+0.4y=4.2

In the second equation the like terms are aligned, therefore, we have to aligened only first equation.

The first equation is,

0.8-4x=-0.4y

Subtract 0.8 from both the sides.

0.8-4x-0.8=-0.4y-0.8

-4x=-0.4y-0.8

Add 0.4y on both the sides.

-4x+0.4y=-0.4y-0.8+0.4y

-4x+0.4y=-0.8

So, after aligned the system of equation have two equations.

-4x+0.4y=-0.8

6x+0.4y=4.2

Both equation are show in third option, So third option is correct.

earnstyle [38]2 years ago
3 0

Answer:

The answer is the 3rd option

Step-by-step explanation:

just got it right on the quiz

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7 0
3 years ago
The quotient of h and 4 is 5 less than h
Genrish500 [490]

Answer:

h/4=h-5

Step-by-step explanation:

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5 0
3 years ago
I'm very confused on this....please answer thank you!!
inessss [21]
It would be y=8x+2/3

Explanation:
Y=|3/4x| is an absolute value
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5 0
2 years ago
An economy pack of highlighters contains 12 yellow, 6 blue, 4 green, and 3 orange highlighters. An experiment consists of random
Serhud [2]

Answer:

The probability of choosing a blue or yellow highlighter when one yellow highlighter is picked is 17/25.

Step-by-step explanation:

Here, according to the question:

Total number of yellow highlighters  = 12

Total number of blue  highlighters  = 6

Total number of green highlighters  = 4

Total number of orange  highlighters  = 3

So, the total number of highlighters  =  12 + 6 + 4 + 3  = 25

Let E1 : Event of selecting a yellow highlighter.

P(E1)  = \frac{\textrm{Total number of yellow highlighters}}{\textrm{Total Highlighters}}  = \frac{12}{25}

Let E2 : Event of selecting blue or yellow highlighter ONCE yellow highlighter is selected.

So, the total yellow highlighters left after selecting one = 12 -1  = 11

Also, the number of blue highlighter  =  6

So, the TOTAL FAVORABLE options to E2 = 6+ 11 = 17

P(E2)  =

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Hence, the probability that a blue or yellow highlighter is selected given that a yellow highlighter is selected is 17/25.

7 0
3 years ago
Jaquan practices soccer every three days. He practices basketball every five days Jaquan practiced both today. How many days unt
Svetach [21]

Answer: He will practice both on every 15 days.

Step-by-step explanation:

Given: Jaquan practices soccer every 3 days.

He practices basketball every 5 days Jaquan practiced both today.

The number of days until he practices both = Least common multiple of 3 and 5

= 3 x 5    [Both are primes]

= 15

Hence, he will practice both on every 15 days.

  • Least common multiple  of two numbers p and  q is the smallest number that is divisible by both p and q.
7 0
3 years ago
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