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irga5000 [103]
3 years ago
11

What is the value of 4 1/2 - 2 3/4

Mathematics
1 answer:
Ivenika [448]3 years ago
3 0

Answer: 1 3/4

Step-by-step explanation: First, convert 4 1/2 and 2 3/4 to have like denominators.

4 1/2 = 4 2/4 because 1 x 2 = 2 and 2 x 2 = 4 = 2/4

2 3/4 stays the same.

Now, subtract 4 2/4 - 2 3/4             (4 x 4 = 16 + 2 = 18) and (2 x 4 = 8 + 3 = 11)

18/4 - 11/4 = 7/4 or 1 3/4

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What do you divide 32 to get 96
creativ13 [48]

Answer:

You divide 32 by 1/3.

Step-by-step explanation:

This is because 96/32 equals to 3/1 so the reciprocal of that is what you divide 32 by to get 96.

8 0
3 years ago
Read 2 more answers
insurance company checks police records on 559 accidents selected at random and notes that teenagers were at the wheel in 91 of
ss7ja [257]

Answer: (13.22\%,\ 19.34\%)

Step-by-step explanation:

Given : Sample space : n= 559

Sample proportion : \hat{p}=\dfrac{91}{559}=0.162790697674\approx0.1628

=16.28\%

Significance level : \alpha= 1-0.95=0.05

Critical value : z_{\alpha/2}=1.96

Confidence level for population proportion:-

\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.1628\pm (1.96)\sqrt{\dfrac{0.1628(1-0.1628)}{559}}\\\\=0.1628\pm0.030604971367\\\\\approx 0.1628\pm0.0306=(0.1322,\ 0.1934)=(13.22\%,\ 19.34\%)

Hence, 95% confidence interval for the percentage of all auto accidents that involve teenage drivers.= (13.22\%,\ 19.34\%)

7 0
4 years ago
Simplify:<br> 8+(-13)-18=
Nuetrik [128]

Answer:

-23

Step-by-step explanation:

You combine the numbers

8+(-13)-18=

add 8 to -13

-5

add -18 to -5

-23

8 0
3 years ago
Read 2 more answers
7/28 in reduced fraction
Bess [88]
7/28
(Now we divide both sides by 7 since they can easily be divided by 7)
7÷7=1
28÷7=4

Since we can't divide 1/4 anymore, 7/28 as a simplified fraction is 1/4.
3 0
3 years ago
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Someone please help me
Elena-2011 [213]
You have to combine the y intervals with the ratio of x times y. So you could use the sun of the cube root of X, and divide that by the square root of x. That way you could find the integer of the tester number and divide that to get the coordinate.
4 0
3 years ago
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