All categories

3 years ago

VVVVVVVVVVVVVVVVVVVVVVVVVV

Mathematics

2 answers:

ki77a [65]3 years ago

7 0

X=15 is your answer. Give brainliest if possible.

Step2247 [10]3 years ago

6 0

X=15, 7×3=21, 5×3=15

You might be interested in

The sum of two numbers is −24. One number is 104 less than the other. Find the numbers.

velikii [3]

Answer:

the answer is 80

Step-by-step explanation:

104-24

5 0

3 years ago

Which of the following lists of ordered pairs is a function? A. (2, 4), (0, 2), (2, -4), (5, 3) B. (1, 2), (1, -2), (3, 2), (3,

Blababa [14]

B
..........................

8 0

3 years ago

Read 2 more answers

The sum of two numbers is 21.

mafiozo [28]

Answer:

Pretend that x and y represents the 2 numbers that we need to find.

According to the information, we know that:

x + y = 21

6x = y

Replace y in the first equation with 6x (because they are equal to each other according to the second equation):

x + y = 21

x + 6x = 21

7x = 21

x = 21/7 = 3

Now have two ways to find y, both will give us the same result:

3 + y = 21 ⇔ y = 21 - 3 = 18

6 · 3 = y ⇔ y = 18

So the numbers that we need to find are 3 and 18.

7 0

3 years ago

Read 2 more answers

48% of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually

oksian1 [2.3K]

Answer:

There is no sufficient evidence to support the executive claim

Step-by-step explanation:

From the question we are told that

The population proportion is $p = 0.48$

The sample proportion is $\r p = 0.45$

The sample size is $n = 300$

The level of significance is $\alpha = 0.02$

The null hypothesis is $H_o : p= 0.48$

The alternative hypothesis is $H_a : p \ne 0.48$

Generally the test statistics is mathematically evaluated as

$t = \frac{\r p - p }{ \sqrt{ \frac{p(1 - p )}{n} } }$

=> $t = \frac{0.45 - 0.48 }{ \sqrt{ \frac{0.48 (1 - 0.48 )}{300} } }$

=> $t = -1.04$

The p-value is mathematically represented as

$p-value = 2P(z > |-1.04|)$

Form the z-table

$P(z > |-1.04|) = 0.15$

=> $p-value = 2 * 0.15$

=> $p-value = 0.3$

Given that $p-value > \alpha$ we fail to reject the null hypothesis

Hence we can conclude that there is no sufficient evidence to support the executive claim

5 0

3 years ago

I neeed heeelppppppppp

zheka24 [161]

Answer:

P(x) = $-2x^{2}$ + 304x - 8510

x = 37 smallest B.E.P

Step-by-step explanation:

P = R - E

P = $-2x^{2}$ + 317 x

E = 13x + 8510

P = $-2x^{2}$ + 317 x - 13x - 8510

P(x) = $-2x^{2}$ + 304x - 8510

B.E.P.(X) where R=E

$-2x^{2}$ + 304 x - 8510 = 0

2(x-37)(x-115)

4 0

2 years ago