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3 years ago

What type of solution do you get if you solve an equation and the last like says 12 = 12

Mathematics

2 answers:

lorasvet [3.4K]3 years ago

7 0

Step-by-step explanation:

simultaneous equation

Fofino [41]3 years ago

3 0

Answer:

Step-by-step explanation:

The term is called <em>Infinitely Many Solutions</em>. Basically no matter what you plug into the equation, the solution will always come out to be true

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Nuts Galore sells a trail mix containing dried banana chips, roasted almonds, and chocolate chips that sells for $6.52 per pound

KengaRu [80]

Answer:

$x = 28$ ----- Banana

$y = 54$ ----- Almonds

$z = 18$ ---- Chocolate

Step-by-step explanation:

Let

$x \to$ banana

$y \to$ almonds

$z \to$ chocolate

So, we have:

$x + y + z = 100$ --- total used

$4x + 8y + 6z = 652$ -- i.e. 6.52 * 100 --- total sales from 100 pounds

$y = 3z$

Required

The number of pounds of each (i.e. x, y and z)

Substitute $y = 3z$ in $x + y + z = 100$

$x + 3z + z = 100$

$x + 4z = 100$

Make x the subject

$x = 100 - 4z$

Substitute $y = 3z$ in $4x + 8y + 6z = 652$

$4x + 8 * 3z + 6z = 652$

$4x + 24z + 6z = 652$

$4x + 30z = 652$

Substitute $x = 100 - 4z$

$4(100 - 4z) + 30z = 652$

$400 - 16z + 30z = 652$

Collect like terms

$- 16z + 30z = 652-400$

$14z = 252$

Divide by 14

$z = 18$

Substitute $z = 18$ in $x = 100 - 4z$

$x = 100 - 4 * 18$

$x = 100 - 72$

$x = 28$

To calculate y, we have:

$y = 3z$

$y = 3 * 18$

$y = 54$

6 0

3 years ago

Write 1.875 as a mixed number.

Andrej [43]

Answer:

1 7/8

Step-by-step explanation:

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3 years ago

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The heights of 6 randomly selected students in a classroom are 64 inches, 73 inches, 67 inches, 70 inches, 69 inches, and 65 inc

sveta [45]

The answer is 68 inches. The mean is the average, so you would need to add all the numbers (408), and divide by how many there are (6) which will give you 68.

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4 years ago

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7 + 9x - x2 in standard form

matrenka [14]

Standard form would be 7+9x-x^2

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3 years ago

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A random sample of 100 people finds that 25 are in favor of a new park. Estimate the total number out of 400 who are in favor of

Gekata [30.6K]

100 people.
100 * 4 = 400
25 * 4 = 100

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3 years ago