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zloy xaker [14]
2 years ago
11

26 over 35 plus 20 over 25

Mathematics
2 answers:
puteri [66]2 years ago
8 0
\frac{26}{35} +  \frac{20}{25}    →  1\frac{19}{35}
Olenka [21]2 years ago
6 0
26/35 + 20/25
130/175 + 140/175
270/175
54/35
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Yoku Is putting on sunscreen. He uses 2 ml to cover 50 cm² of his skin. He wants to know how many milliliters of sunscreen he ne
Temka [501]
Alright so here it is

325/50=6.5
6.5*2=13
It would take 13 millimeters of sunscreen to cover 325 cm of skin
4 0
3 years ago
Read 2 more answers
The heights of a random sample of 100 women are recorded. The sample mean is 65.3 inches and the sample standard deviation is 3
Keith_Richards [23]

Answer: B. 65.3\pm(2)(0.3)

Step-by-step explanation:

The confidence interval for the population mean is given by :-

\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 100

Sample mean : \overline{x}=65.3\text{ inches}

Standard deviation: \sigma=3 \text{ inches}

Level of confidence = 0.95

Significance level : \alpha=1-0.95=0.05

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

Then, 95% confidence interval for the population mean will be :-

65.3\pm (1.96)\dfrac{3}{\sqrt{100}}\\\\\approx65.3\pm(2)(\dfrac{3}{10})=65.3\pm(2)(0.3)

8 0
3 years ago
Read 2 more answers
Evaluate 5x-\dfrac xy5x−
olga2289 [7]

Answer:

5x - (x/y) = 18 when x=4 and y=2

Step-by-step explanation:

5x - (x/y)

When x=4 and y=2

Substitute the value of x=4 and y=2 into the expression

5x - (x/y)

5(4) - (4/2)

Multiply 5 by 4 and divide 4 by 2

=20 - 2

Subtract 2 from 20

=18

5x - (x/y) = 18 when x=4 and y=2

7 0
3 years ago
Which sum is equivalent to (11k2 + 3k + 1)?
BabaBlast [244]

a) 4k^2 + k – 5) + (7k^2 + 2k + 6)

  11k^2 +3k +1


Choice A

4 0
3 years ago
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A van can travel 18 miles on each gallon of gasoline. At that rate, how many miles can the van travel on 15 gallons of gasoline?
postnew [5]

Answer:

270

Step-by-step explanation:

you would do 18x15

3 0
3 years ago
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