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3 years ago

Butch, Harry, and Nicky are playing a game. Harry has half as many points as

Mathematics

1 answer:

ryzh [129]3 years ago

4 0

Answer:

Step-by-step explanation:

H=1/2 * B

N=H-5= 1/2 * B-5

B+H+N= B+(1/2 *B) + (1/2 *B-5)=31

2B-5=31

B=18

H=1/2 *B=9

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In a class, 42 students, there are 8 more boys than girls write and solve a system of 3 equations

zhenek [66]

Answer:

x = 17

Step-by-step explanation:

x + x + 8 = 42 because x = boys and x + 8 = girls

2x = 34 because 2x = 42 - 8

x = 17

i hope this helps! you don't need the 2x = 42 - 8 to be an equation ;)

8 0

3 years ago

FiftyFifty adult men in the United States are randomly selected and measured for their body mass index (BMI). Based on that sa

Fynjy0 [20]

Answer: $(23.3,\ 29.7)$

Step-by-step explanation:

The confidence interval for population mean is given by :-

$\overline{x}\pm ME.$ , where $\overline{x}$ is the sample mean and ME is the margin of error .

Given : The sample mean : $\overline{x}=26.5$

Margin of error : $ME=3.2$

Then , the range of values (confidence interval) likely to contain the true value of the population parameter will be :-

$26.5\pm 3.2=(26.5-3.2,\ 26.5+3.2)=(23.3,\ 29.7)$

Hence, the range of values likely to contain the true value of the population parameter = $(23.3,\ 29.7)$

3 0

3 years ago

Read 2 more answers

The ratio of Dobermans to terriers is 2:7. There are 774 dogs altogether.

kaheart [24]

Answer:

172-602 I think

Step-by-step explanation:

6 0

2 years ago

Please help!!<br>Solve each inequality. Graph and check your solution. t -5 ≥ -13

Kisachek [45]

T= -8 because -8-5 equals -13

7 0

3 years ago

I need help on this I don’t know what to do

nadya68 [22]

Answer:

x=9

Step-by-step explanation:

logx (531441) = 6

Changing this to an exponential

x^6 =531441

Take the 6th root of each side

(x^6)^1/6 = (531441)^1/6

x =9

8 0

2 years ago