2 years ago

How do I do this??

Mathematics

2 answers:

Pachacha [2.7K]2 years ago

7 0

Step-by-step explanation:

please mark me as brainlest

Gwar [14]2 years ago

5 0

Answer:

Well i hope i helped you

Step-by-step explanation:

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Jimmy’s age is one year less than the sum of the ages of his siblings Serena and Tyler. Which equation represents Jimmy’s age?

andriy [413]

I think it is d because the questions says: j-1+s+t

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3 years ago

How does the value of the digit 2 in the number 32,000 compare with the value of the digit 2 in the number 26,000?

julsineya [31]

Answer:

the second value is ten times higher then the refference one

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3 years ago

11. Jim travelled at a speed of 18km/h for 2 hours. What was the distance covered?

Igoryamba

Answer:

d = 36 km

Step-by-step explanation:

Speed of Jim, v = 18 km/h

Time, t = 2 hours

We need to find the distance covered. We know that the speed of an object is equal to the distance covered by it divided by total time taken.

$v=\dfrac{d}{t}\\\\d=v\times t\\\\d=18\ km/h\times 2\ h\\\\=36\ km$

So, he will cover 36 km.

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3 years ago

A ribbon is cut into n parts. The length of each part increases such that they form a geometric progression. SPM Given the lengt

emmainna [20.7K]

Answer:

Step-by-step explanation:

$Let\ say\ r \ the \common\ ratio:\\a)a_4=r^2*a_2=9*a_2\Longrightarrow\ r=3\ (not\ -3\ since\ parts\ are\ positive)\\\\b)\\\displaystyle \sum_{i=1}^{n} a_i =a_1+a_2+a_3+...+a_n\\\\=a_1+a_1*r+a_1*r^2+a_1*r^3+...+a_1*r^{n-1}\\\\=a_1*(1+r+r^2+...+r^{n-1})\\\\=a_1*\dfrac{r^n-1}{r-1} \\\\147620=5*\frac{(3^n-1)}{3-1} \\\\3^n-1=\frac{2*147620}{5} \\\\3^n=59049 \\\\n*ln(3)=ln(59049)\\\\n=\dfrac{ln(59049)}{ln(3)} \\\\n=10\\\\a_n=5*3^{10-1}=5*19683=98415(cm)$

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2 years ago

Translate the sentence into an inequality.

Liula [17]

Answer:

Step-by-step explanation:

<u>sentence</u> <u>—————————-——————></u> <u>math expression</u>

Ten increased by —————————————> 10 +

the product of a number ‘x’ and 5 —————> 5x

less than -15 —————————-——————> ...... ≤ -15

<em>Conclusion</em>:

10 + 5x ≤ -15

8 0

2 years ago