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2 years ago

Which value of x makes the equation 3x = 36 true? A. 10 B. 12 C. 14 D.16

Mathematics

2 answers:

oee [108]2 years ago

7 0

Answer:

B. 12

x = 12

Also you can use mathpapa to help you with math.

lana [24]2 years ago

3 0

Answer:

B, 12

Step-by-step explanation:

there are many ways to solve this problem, I will state 2:

divide 36 by 3, your answer would be 12

simply multiply 3 by each number on the question, your answer as well will be 12.

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please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

DIA [1.3K]

Answer:

There are 4 boys for every 6 girls (4 : 6 ratio)

5 0

2 years ago

X+21+3x+9 solve for x

frez [133]

Answer:

This is not an equation. It is an expression, you can't solve for x in an expression

7 0

2 years ago

A bivariate data set has x = 21, sx = 13, y = 55, sy = 27, and r = .88. What is the equation for the regression line of y on x?

earnstyle [38]

Answer:

c) $y=16.57+1.83x$

Step-by-step explanation:

Equation for regression line of y on x is given as

$\hat{y}=mx+b --- (1)$

where

$\hat{y}$ = predicted value

m = slope of line

b = intercept

m and b are found as

$m=r\frac{S_{y}}{S_{x}}---(2)\\\\b=\bar{y}-m\bar{x}---(3)$

r = correlation coefficient = 0.88

Sx = standard deviation for independent variable x = 13

Sy = standard deviation for dependent variable y = 27

$\bar{x}$ = mean value of independent variable x = 21

$\bar{x}$ = mean value of dependent variable y = 55

Substituting these values in (2) and (3)

$m=r\frac{S_{y}}{S_{x}}\\\\m=(0.88)\frac{27}{13}\\\\m=1.83$

$b=\bar{y}-m\bar{x}\\\\b=55-(1.827)(21)\\\\b=16.57$

Putting these values of m and b in (1)

$y=1.83x+16.57$

5 0

2 years ago

A fair spinner has 9 equal sections: 2 red, 3 blue and 4 green.

Alex17521 [72]

Answer:

The Probability of not getting two consecutive reds is 0.9506

Step-by-step explanation:

Number of sections = 9

Number of red sections = 2

Number of blue sections = 3

Number of green sections = 4

Probability of getting two consecutive reds = $\frac{2}{9} \times \frac{2}{9}=\frac{4}{81}$

So,The Probability of not getting two consecutive reds = $1- \frac{4}{81}=\frac{77}{81}=0.9506$

Hence The Probability of not getting two consecutive reds is 0.9506

3 0

3 years ago

Q1) Ms. Garcia baked a 12 pound cake for a birthday party. Bryant ate 1/4 of 1 point

olga55 [171]

Answer:

3 pounds

Step-by-step explanation:

12/4=3 (because we need to see how much bryant ate first)

12-3=9 (original - what bryant ate)

9/3=3 (what was left after bryant finish and what 1/3 of 9 is)

3 0

2 years ago