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3 years ago

I WILL MAKE YOU THE BRAINLIEST EASY QUESTION

Mathematics

2 answers:

Effectus [21]3 years ago

5 0

Answer:

2 9/40

Step-by-step explanation:

1. Convert 1 1/2 to an improper fraction

2. Find a common factor so that the denominators are the same.

2. Add numerators.

3. Simplify.

ki77a [65]3 years ago

3 0

First, change $1 \frac{1}{2}$ to $\frac{3}{2}$ .

Then, you can start adding.

$\frac{3}{2}+\frac{3}{5}=\frac{15}{10}+\frac{6}{10}=\frac{21}{10}$

$\frac{21}{10}+\frac{1}{8}=\frac{84}{40}+\frac{5}{40}=\frac{89}{40}$

$\frac{89}{40} = 2 \frac{9}{40}$

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There are 5 4/5 cups of milk left in a carton write 5 4/5 as an improper fraction

olga_2 [115]

29/5 should be the correct answer

5 0

3 years ago

Refer to the previous exercise. The researchers wanted a sufficiently large sample to be able to estimate the probability of pre

Maru [420]

Answer:

The large sample n = 117.07

Step-by-step explanation:

Step(i):-

Given that the estimate error (M.E) = 0.08

The proportion (p) = 0.75

q =1-p = 1- 0.75 =0.25

Level of significance = 0.05

Z₀.₀₅ = 1.96≅ 2

Step(ii):-

The Marginal error is determined by

M.E = $\frac{Z_{0.05} \sqrt{p(1-p)} }{\sqrt{n} }$

$0.08 = \frac{2 X \sqrt{0.75(1-0.75)} }{\sqrt{n} }$

Cross multiplication , we get

$\sqrt{n} = \frac{2 X \sqrt{0.75(1-0.75)} }{0.08 }$

√n = $\frac{2 X0.4330}{0.08} = 10.825$

squaring on both sides , we get

n = 117.07

Final answer:-

The large sample n = 117.07

6 0

2 years ago

600,000 1/10 of what? Please help!!

igor_vitrenko [27]

600000 is 1/10 of "x", that means x = 10/10 or a whole, what is "x"?

$\bf \begin{array}{ccll}
amount&fraction\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
600000&\frac{1}{10}\\\\
x&\frac{10}{10}
\end{array}\implies \cfrac{600000}{x}=\cfrac{\frac{1}{10}}{\frac{10}{10}}\implies \cfrac{600000}{x}=\cfrac{1}{10}
\\\\\\
\cfrac{600000\cdot 10}{1}=x$

8 0

3 years ago

#12 with explanation please

4vir4ik [10]

Answer:

30.01 units

Step-by-step explanation:

Given vertices WXYZ:

W(-4,5), X(2,4), Y(3, -4), Z(-1, -6)

Perimeter is the sum of the side length.

Use distance formula to find each side:

WX = $\sqrt{(2+4)^2+(4-5)^2} =\sqrt{37}$ ≈ 6.08
XY = $\sqrt{(3-2)^2+(-4-4)^2} =\sqrt{65}$ ≈ 8.06
YZ = $\sqrt{(-1-3)^2+(-6+4)^2} =\sqrt{20}$ ≈ 4.47
WZ = $\sqrt{(-1+4)^2+(-6-5)^2} =\sqrt{130}$ $\sqrt{(-1+4)^2+(-6-5)^2}=\sqrt{130}$ ≈ 11.40