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3 years ago

Can you reduce 155/96

Mathematics

1 answer:

Ugo [173]3 years ago

6 0

1.6145833333 is a calculator answer.

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-30=5(x+1)−30=5(x+1) proszę szybką odpowiedź :)

den301095 [7]

Answer:

x = -7

Step-by-step explanation:

The given equation is :

-30=5(x+1)

We need to solve the equation.

Use associative property on RHS.

-30 = 5x+5

Subtract 5 from both the sides.

-30-5 = 5x+5-5

-35 = 5x

x = -7

Hence, the value of x is -7.

7 0

3 years ago

Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors

tino4ka555 [31]

Answer:

$\chi^2 = \frac{(83-90)^2}{90} +\frac{(68-72)^2}{72}+\frac{(85-78)^2}{78}+\frac{(64-60)^2}{60} = 1.66$

And the answer would be:

c. 1.66

Step-by-step explanation:

We need to conduct a chi square test

The statistic to check the hypothesis is given by:

$\sum_{i=1}^n \frac{(O_i -E_i)^2}{E_i}$

the observed values for this case are:

$Freshemen=83$

$Sophomores=68$

$Juniors = 85$

$Seniors= 64$

The expected values for this case are:

$Fres_E =0.3*300= 90$

$Sop_E =0.24*300= 72$

$Jun_E = 0.26*300 =78$

$Sen_E = 0.20*300= 60$

Then the statistic would be given by:

$\chi^2 = \frac{(83-90)^2}{90} +\frac{(68-72)^2}{72}+\frac{(85-78)^2}{78}+\frac{(64-60)^2}{60} = 1.66$

And the answer would be:

c. 1.66

4 0

4 years ago

My mum has saved £12,000 would it be better to have a 1/5 or 1/10

alexgriva [62]

It would be better to have 1/5.
Because 12,000/5=2,400 and 12,000/10=1,200

7 0

3 years ago

I need help getting the answer please

____ [38]

This is the answer
$\frac{21}{1} \div \frac{3}{4} = \frac{21}{1} \times \frac{4}{3} \\ = \frac{84}{3} = 28$
or you can solve it like this
$21 \div \frac{3}{4} = 21 \div 0.75 = 28$
hope this helps

6 0

3 years ago

Please help I will reward brainliest

allochka39001 [22]

Answer:

38.5 m²

Step-by-step explanation:

$A=\frac{1}{2}bh$ when $b$ is the base length of the triangle and $h$ is its height

Plug in the base length, 11 m and the height, 7 m

$A=\frac{1}{2}(11)(7)\\A=\frac{1}{2}(77)\\A=38.5$

Therefore, the area of the figure is 38.5 m².

I hope this helps!

8 0

3 years ago