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Setler [38]
2 years ago
9

Roberto has $71 to buy baseballs for his little league team. Each baseball

Mathematics
2 answers:
Daniel [21]2 years ago
8 0

Answer:

10

Step-by-step explanation:

he can buy 10 because 7×10=70

Semenov [28]2 years ago
5 0

Answer:

10

Step-by-step explanation:

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Please Help!!!
Mkey [24]
The equation looks like this:

26=x*3.5+8.50

where x is the number of pen you bought.

We solve it like this:
first, we subtract 8.50 from both sides:

17.50 =3.5*x

now we divide both sides by 3.5:
5=x

so you purchased 5 pens.

3 0
3 years ago
Una persona asegura que su casa tiene forma rectangular y que el perímetro de la misma es de 18 m y que además, su área es de 21
leva [86]

Considerando las fórmulas para el perímetro y el área de un rectángulo, hay que se chega en una <u>eccuación cuadrática sin solución</u>, o sea, las medidas no son posibles y la persona estaba mintiendo.

<h3>¿Cuál es la fórmula para el perímetro y el área de un rectángulo?</h3>

Considerando que las dimensiones son l y w, hay que:

  • El perímetro es: P = 2(l + w).
  • El área es: A = lw.

El <u>perímetro es de 18 m</u>, o sea:

2(l + w) = 18

l + w = 9

l = 9- w.

El <u>área es de 21 m²</u>, o sea:

lw = 21

(9- w)w = 21

-w² + 9 - 21 = 0

w² - 9w + 21 = 0

El discriminante es dado por:

D = 9² - 4 x 1 x 21 = -3.

El discriminante negativo implica que la <u>eccuación cuadrática no tiene solución</u>, o sea, las medidas no son posibles y la persona estaba mintiendo.

Puede-se aprender más a cerca de el perímetro y el área de un rectángulo en brainly.com/question/26475963

#SPJ1

4 0
2 years ago
Which of these best describes a scientific theory
Sidana [21]

Answer:

B.

Step-by-step explanation:

Have a good day i hope this helps :)

4 0
3 years ago
A² +6²<br> a-b<br> if a = 3 and b = 4<br> Evaluate each expression using the variable replacements.
Arturiano [62]
Knowing what the variables are means that all we have to do is substitute:
[ ( 3 ) ^2 + ( 4 ) ^2 ] / 4 - 3 =
( 9 + 16 ) / 1 =
25
3 0
3 years ago
Read 2 more answers
Priorities are important in making Financial decisions because they _______.
ivann1987 [24]

The best answer is D!

Please give me the brainliest answer :)



5 0
3 years ago
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