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Kobotan [32]
2 years ago
5

Does 3/8 : 13/40 form a proportion

Mathematics
1 answer:
Len [333]2 years ago
7 0

Answer:

no ,its not proportion

Step-by-step explanation:

Welcome

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Of the fifth grade students 15/20 went to the book fair.Of the students who went to the book fair,12/16 bought at least one book
Vaselesa [24]

Answer:

\frac{9}{16}

Step-by-step explanation:

Let total number of students=x

Students went to the book fair:

Students went to book fair=\frac{15}{20}\times total\ number\ of\ students=\frac{15}{20}x

Students who bought book:

Students\ who\ bought\ book=\frac{12}{16}\times Number\ of\ students\ went\ to\ book\ fair=\frac{12}{16}\times \frac{15}{20}x=\frac{9}{16}x

Hence \frac{9}{16} of total students bought at least one book.

3 0
4 years ago
Madi has $8.80 in pennies and nickels.
shepuryov [24]
Let p = number of pennies.
Let n = number of nickels.

We are given that n= 2p and the total value is $8.80.

We know that a penny = $0.01 and that a nickel = $0.05.

So $0.01p + $0.05n = $8.80.

Substitute 2p for n:
$0.01p + $0.05*2p = $8.80

$0.01p + $0.10p = $8.80

$0.11p = $8.80

p = 80
So n = 2p = 2*80 = 160

Thus there are 80 pennies ($0.8) and 160 nickels ($8.00). The value of all the coins is $8.80.
7 0
3 years ago
What is the equation of a circle with a center (3, 3) and a area of 219π
katrin2010 [14]

Answer:

I don't know I'm really sorry please don't be angry

and if you want my social media cause your angry I'll give

8 0
3 years ago
1)There are whole numbers that are not integers.
tiny-mole [99]

Answer:

1).false 2). false 3).true 4). true

Step-by-step explanation:

1).All whole numbers are integers, so s...” That's right! All whole numbers are integers, so since 0 is a whole number, 0 is also an integer.

3).. Integers include all whole numbers and their negative counter part e.g. … -4, -3, -2, -1, 0,1, 2, 3, 4,… Where a and b are both integers. is a rational number but not an integer. 4). All integers are rational number. Since we can rewrite an integer into a fractional form by diving it by 1. For example, 4=41 4 = 4 1 . But not all rational numbers are integer.

6 0
3 years ago
Read 2 more answers
HELP ASAP!!!!!<br> What is the value of X? Enter your answer in the box
andre [41]

ANSWER:

48°

STEP BY STEP EXPLAINATION:

The opposite side of the angle X is 48° and with angles the opposite sides are equal

5 0
3 years ago
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