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shtirl [24]
3 years ago
10

If lauras uncle eats 2 out of 90 crackers how many students can go and theres 120 drinks,how many students can go

Mathematics
1 answer:
NARA [144]3 years ago
7 0
60 students will be able to go if they get 2 drinks each.
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Type the correct answer in the box use/ for the fraction bar
Zarrin [17]

Answer:

see explanation

Step-by-step explanation:

given the 2 equations

y = x² - 2x - 19 → (1)

y + 4x = 5 → (2)

substitute y = x² - 2x - 19 into (2)

x² - 2x - 19 + 4x = 5 ( subtract 5 from both sides )

x² + 2x - 24 = 0 ← in standard form

(x + 6)(x - 4) = 0 ← in factored form

equate each factor to zero and solve for x

x + 6 = 0 ⇒ x = - 6

x - 4 = 0 ⇒ x = 4

substitute each value of x into (1) for corresponding y- coordinate

x = - 6 : y = (- 6)² - 2(- 6) - 19 = 36 + 12 - 19 = 29 ⇒ (- 6, 29)

x = 4 : y = 4² - 2(4) - 19 = 16 - 8 - 19 = - 11 ⇒ (4, - 11)

the solutions are (- 6, 29), (4, - 11)


6 0
3 years ago
An important factor in selling a residential property is the number of people who look through the home. A sample of 20 homes re
egoroff_w [7]

Answer:

Step-by-step explanation:

7 0
3 years ago
Two factors of 18 add up to 12. What are they?
stepladder [879]

Answer:

3 and 9

Step-by-step explanation:

The factors of 18 can be listed as

1, 2, <u>3</u>, 6, <u>9</u>, 18

The two which sum to 12 are 3 and 9

7 0
3 years ago
Organize the following polynomial expressions from least to greatest based on their degree: x 2xyz 9x3y2 18x2 5ab − 6y 4x4 3x2 −
Advocard [28]

The order will be IV, III, I, and II.

<h2>Polynomial</h2>

Polynomial is an algebraic expression that consists of variables and coefficients. Variable are called unknown. We can apply arithmetic operations such as addition, subtraction, etc. But not divisible by variable.

Given

 I.  x + 2xyz

II.  9x³y²

III.  18x² + 5ab - 6y

IV. 4\rm x^{4} + 3x² - x - 4

<h3>To find </h3>

The polynomial expressions from least to greatest are based on their degree.

<h3>How to organize?</h3>

4\rm x^{4} + 3x² - x - 4 is a biquadratic ploynolmial.

18x² + 5ab - 6y is a cubic polynomial.

x + 2xyz is a quadratic polynomial.

9x³y² is a monomial polynomial.

So the order will be IV, III, I, and II.

More about the polynomial link is given below.

brainly.com/question/17822016

8 0
2 years ago
Which amount is greater:50% of 40 or 40% of 50?
Rina8888 [55]
50% of 40 is 20, and 40% of 50 is 20, neither one is greater, they're equal
3 0
3 years ago
Read 2 more answers
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