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2 years ago

What’s the sum of 4/10 + 32/100

Mathematics

2 answers:

Serggg [28]2 years ago

6 0

The answer is 0.72. Hope I helped!!

Marrrta [24]2 years ago

6 0

The answer should be 18/25 or 0.72

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What fraction is equal to the decimal 0.32

dangina [55]

8/25 is the answer. Hope this helps.

6 0

2 years ago

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Scientists have discovered a vaccine for a debilitating disease. This year there were 570,000 reported new cases of the disease

Ket [755]

Answer: There are approximately 853827 new cases in 6 years.

Step-by-step explanation:

Since we have given that

Initial population = 570000

Rate at which population decreases is given by

$\frac{2}{3}$

Now,

First year =570000

Second year is given by

$570000\times (\frac{1}{3})$

Third year is given by

$570000(\frac{1}{3})^2$

so, there is common ratio ,

it becomes geometric progression, as there is exponential decline.

so,

$570000,570000\times \frac{1}{3},570000\times( \frac{1}{3})^2,......,570000\times (\frac{1}{3})^6$

a=570000

common ratio is given by

$r=\frac{a_2}{a_1}=\frac{1}{3}$

number of terms = 6

Sum of terms will be given by

$S_n=\frac{a(1-r^n)}{(1-r)}$

We'll put this value in this formula,

$S_6=\frac{570000(1-(\frac{1}{3})^6}{(1-\frac{1}{3})}\\\\=853827.16$

So, there are approximately 853827 new cases in 6 years.

6 0

2 years ago

A company did a quality check on all the packs of nuts it manufactured. Each pack of nuts is targeted to weigh 18.25 oz. A pack

Harrizon [31]

X ∈ (real numbers symbol not in brackets) : 0<x<17.89 and 18.61<x

6 0

2 years ago

-x + 6y = -8 <br> x-6y=8

PilotLPTM [1.2K]

Answer:

inifinitely many solutions

Step-by-step explanation:

3 0

2 years ago

Find the value of the polynomial 5x – 4x^2 + 3 at x = 2 and x = –1

aliya0001 [1]

Answer:

Let the polynomial be f(x) = 5x – 4x^2 + 3

Now, for x = 2,

f(2) = 5(2) – 4(2)^2 + 3

=> f(2) = 10 – 16 + 3 = –3

Or, the value of the polynomial 5x – 4x^2 + 3 at x = 2 is -3.

Similarly, for x = –1,

f(–1) = 5(–1) – 4(–1^)2 + 3

=> f(–1) = –5 –4 + 3 = -6

The value of the polynomial 5x – 4x2 + 3 at x = -1 is -6.

Answered by GAUTHMATH

6 0

2 years ago

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