3 years ago

Here is a number line:

Mathematics

1 answer:

cricket20 [7]3 years ago

6 0

Answer:

1/4 is A as a fraction

2/8 is an equivalent fraction to A

Step-by-step explanation:

Count the lines :)

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18. Curry powder is sold at $7.45 per 100 g. How much money will Thuy need in order to buy 3 kg of curry powder?

MissTica

Answer:

Step-by-step explanation:

$7.45 = 100g

x = 3kg( 3 × 1000) = 3000g

∵ $7.45 = 100g

x = 3000g

(100 × x) = (7.45 × 3000)

100x = 22350

100x/100 = 22350/100

x = $223.5

4 0

2 years ago

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In 2009 the life expectancy is about 80 life expectancy gains 5.7 years every decade. From 2009 in how many years would humanity

Dmitry [639]

Answer:

about 70 years

Step-by-step explanation:

Life expectancy (e) improves by 5.7 years every 10 years, so 5.7/10 = 0.57 years per year. For t years after 2009, it can be modeled by ...

e = 0.57t +80

We want to find when that is 120:

120 = 0.57t +80

40 = 0.57t

40/0.57 = t ≈ 70.2

About 70 years from 2009, humanity may achieve a life expectancy of 120 years.

3 0

3 years ago

2. Find the measure of each numbered angle

miskamm [114]

2) 4 = 90
5 = 45
6 = 45

16) this one's a bit long :)

PLEASE READ
I MADE A DUMB MISTAKE WHEN WORKING OUT THE HEIGHT
ITS NOT 8.41 ITS 9
SORRY ABOUT THAT

3 0

3 years ago

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The first term of an arithmetic sequence is -3 and the fifteenth term is 53. What is the common difference of the sequence?

Maru [420]

C: 4 is the right answer

Step-by-step explanation:

Given

a1 = -3

a15 = 53

We know that explicit formula for the arithmetic sequence is:

$a_n=a_1+(n-1)d$

For the 15th, term it will be

$a_{15}=-3+(15-1)d\\53=-3+14d$

Adding 3 on both sides

$53+3 = -3+3 + 14d\\56 = 14d$

Dividing both sides by 14

$\frac{56}{14}=\frac{14d}{14}\\d=4$

Hence,

C: 4 is the right answer

Keywords: Arithmetic sequence, Common Difference

Learn more about arithmetic sequence at:

#LearnwithBrainly

4 0

3 years ago

Mike spent half of his weekly allowance playing arcade games. To earn more money his parents let him wash the car for $5.32. Wha

Flura [38]

$13.26 - $5.32= $7.94

8 0

3 years ago