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2 years ago

The equation below has one solution 9X -10 equals 3X +2 what is the solution to the equation

Mathematics

1 answer:

djyliett [7]2 years ago

5 0

Answer:

X= 2

Step-by-step explanation:

9x-10

(9*2)-10

18-10

3x+2

(3*2)+2

6+2

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Naomi wants to make smoothies for her friends.each servings the smoothie contains 7/8 cup of blueberries and 8/9 cups of strawbe

STatiana [176]

Answer:

Step-by-step explanation:

Blueberries

7/8 + 8/9 = 1 55/72

1 55/72 x 4 =

1 = 72

72 + 55 = 127

127/72 x 4/1 = 504/288

504/72 = 7/1

Even tho 7 isn´t an option I would pick A. because it is the closest

4 0

2 years ago

What is the relative minimum of the function?<br><br> Enter your answer in the box.

trapecia [35]

Answer:

-5

Step-by-step explanation:

The minimum is at the vertex. This is at (1, -5)

The minimum value is -5

5 0

2 years ago

The national average for the math portion of the College Board’s Scholastic Aptitude Test

Alex73 [517]

Answer:

a) 0.1587

b) 0.023

c) 0.341

d) 0.818

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 515

Standard Deviation, σ = 100

We are given that the distribution of SAT score is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) P(score greater than 615)

P(x > 615)

$P( x > 615) = P( z > \displaystyle\frac{615 - 515}{100}) = P(z > 1)$

$= 1 - P(z \leq 1)$

Calculation the value from standard normal z table, we have,

$P(x > 615) = 1 - 0.8413 = 0.1587 = 15.87\%$

b) b) P(score greater than 715)

$P(x > 715) = P(z > \displaystyle\frac{715-515}{100}) = P(z > 2)\\\\P( z > 2) = 1 - P(z \leq 2)$

Calculating the value from the standard normal table we have,

$1 - 0.977 = 0.023 = 2.3\%\\P( x > 715) = 2.3\%$

c) P(score between 415 and 515)

$P(415 \leq x \leq 515) = P(\displaystyle\frac{415 - 515}{100} \leq z \leq \displaystyle\frac{515-515}{100}) = P(-1 \leq z \leq 0)\\\\= P(z \leq 0) - P(z < -1)\\= 0.500 - 0.159 = 0.341 = 34.1\%$

$P(415 \leq x \leq 515) = 34.1\%$

d) P(score between 315 and 615)

$P(315 \leq x \leq 615) = P(\displaystyle\frac{315 - 515}{100} \leq z \leq \displaystyle\frac{615-515}{100}) = P(-2 \leq z \leq 1)\\\\= P(z \leq 1) - P(z < -2)\\= 0.841 - 0.023 = 0.818 = 81.8\%$

$P(315 \leq x \leq 615) = 81.8\%$

4 0

3 years ago

What is the equation of the following line?

arlik [135]

The correct answer is f

3 0

2 years ago

What is a set of three numbers that have a gcf of 13?

ipn [44]

There are an infinite number of correct answers to that question.
Here are 5 answers ... one for each point:

13, 26, 39

13, 39, 52

13, 39, 130

65, 91, 117

39, 169, 299

4 0

2 years ago