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2 years ago

Pls help i rly dont get this

Mathematics

2 answers:

Dvinal [7]2 years ago

4 0

Answer:

25x + 10y

Step-by-step explanation:

velikii [3]2 years ago

3 0

Answer:

25x + 10y

Step-by-step explanation:

if you replace x with 4 and y with 6, you will find out that it is equal to 160

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Two people spend $44 at a fair. There is an entrance fee of x dollars per person and each ride costs $3.50. If they went on the

almond37 [142]

I think its B
that's THINK i'm not completely sure

7 0

3 years ago

1 divided 5/12=-3/10

emmasim [6.3K]

Answer:

t = - 1/8

Step-by-step explanation:

t ÷ 5/12 = - 3/10

t × 12 ÷ 5 = - 3/10

12t/5 = - 3/10

12t × 10 = -3 × 5

120t = - 15

t = - 15/120

t = - 1/8

Thus, t divided 5/12 = - 3/10 => -1/8

-TheUnknownScientist

4 0

3 years ago

The fifth term of an arithmetic sequence is 11 and the tenth term is 41. what is the first term

Anna [14]

Answer:

Step-by-step explanation:

8 0

3 years ago

The mean and standard deviation of the number of practices are = 8 practices and sx = 4.47 practices. The mean and standard devi

ddd [48]

Least square regressions are used to find the equation of best fit between two variables.

The equation of the least-squares regression line is: $\mathbf{y = 9.414 - 0.213x}$

The given parameters are:

$\mathbf{\bar x = 8}$

$\mathbf{\sigma_x = 4.47}$

$\mathbf{\bar y = 7.71}$

$\mathbf{\sigma_y = 1.20}$

$\mathbf{r = -0.793}$

The equation of the least-squares regression line is represented as:

$\mathbf{y = a + bx}$

Where:

$\mathbf{b = r \times \frac{\sigma_y}{\sigma_x}}$

$\mathbf{a = \bar y - b\bar x}$

So, we have:

$\mathbf{b = r \times \frac{\sigma_y}{\sigma_x}}$

$\mathbf{b = -0.793 \times \frac{1.20}{4.47}}$

$\mathbf{b = -0.213}$

$\mathbf{a = \bar y - b\bar x}$

$\mathbf{a = 7.71 - (-0.213) \times 8}$

$\mathbf{a = 9.414}$

So, the equation is:

$\mathbf{y = a + bx}$

$\mathbf{y = 9.414 - 0.213x}$

Read more about equations of least squares regression at:

brainly.com/question/2141008

8 0

2 years ago

What is the quotient of 7.5 and 2.4

Liono4ka [1.6K]

Answer/Work:
7.5 divided by 2.4 is
equivalent to 75 divided by 24,
7.5/2.4 = 75/24 =3.125
calculating 3 decimal places.

Your answer is 3.125

3 0

3 years ago