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kirill115 [55]
2 years ago
12

In a class 2/5 of the children are boys.What fraction are girls

Mathematics
2 answers:
RideAnS [48]2 years ago
6 0

Answer:

3/5

Step-by-step explanation:

para cosas tan simples solo resta 2 -5 y te da tres lo que significa que es 3/5

Bas_tet [7]2 years ago
3 0

Answer:

3/5

Step-by-step explanation:

Self explanatory.

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Trejon rides his bike 27 miles each day. Which equation can be used to find r, the number of miles he will ride in 8 days? 24 r
Leona [35]

Answer:

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3 0
3 years ago
Please help me with these.
frozen [14]

18. The perimeter is simply √3 + √3 + √3 + √3 or 4√3cm, since the perimeter is just all sides added together. You could add the decimal numbers together using a calculator, which I'm not sure if you're supposed to do in your class.

The area is just width times length, so √3 • √3 = 3cm².

19. The perimeter is 2√5 + 2(9 - √5).

This can also be written as 2√5 + 18 - 2√5, which leaves you with a perimeter of 18ft.

The area would be √5 • (9 - √5), which leaves you with (9√5 - 5)ft².

20. The formula for the perimeter (or circumference) of a circle is π times the diameter of the circle. Using the radius of the circle, 1/π, the diameter is 2/π, so

π • 2/π = 2. The circumference of the circle is 2 inches.

The area of the circle is calculated with the equation πr², so

π(1/π)² = π • 1/(π²) = π/(π²) = π. The area is simply π in².

8 0
3 years ago
Solve using substitution.<br> x - 7y = 13<br> x + 4y = 2
belka [17]

Answer:

second is 1.50 first is 11.15

Step-by-step explanation:

see if it works for you I changed my fractions into decimals

7 0
3 years ago
Karen has to buy 8 people gifts, and she wants to spend the same amount on each person. Which equation would help her determine
ValentinkaMS [17]
$32/8=Answer
Answer=$4
She can spend $4 on each person.

Hope this helps!
5 0
3 years ago
Read 2 more answers
If f(x) is a linear function, f( - 1) = 5, and f(2) = 3, find an equation for 8 (2)<br> =<br> f(x) =
Leno4ka [110]
5
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3 0
2 years ago
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