MATHEMATICS MIDDLE SCHOOL

What is the answer of y=1\3x-10 if x=12

Answers

Answer 1
Answer:

y= 1/3x-10

if x= 12

Y=1/3(12)-10

Y= 12/3 -10

divide 12/3 by 3

12/3 = 4

Y= 4-10

Y= -6

I hope that's help and please if you have questions just let me know !


Answer 2
Answer: y=1/3·12-10

1/3·12=4

=4-10

=-6

y=-6

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Of the students in your class, 12% are left-handed. What fraction of the students are left-handed? Are there more right-handed or left-handed students? Explain. Write your answers in simplest form.I need to know how many people are in what catergory please

Answers

Fraction of students left-handed: (3)/(25)

There are more right-handed students

Step-by-step explanation:

To solve the problem, we call:

p(L) the fraction of students in the class that are left-handed

p(R) the fraction of students in the class that are right-handed

We know that:

p(L) = 12\% is the fraction of students which are left-handed

we can convert this value into fractional form dividing by 100:

p(L)=(12)/(100)

Simplifying by 4,

p(L)=(3)/(25)

We also know that

p(L)+p(R)=1, because the fraction of students that are either left or right-handed must be 100%

Therefore, the fraction of students that are right-handed is

p(R)=1-p(L)=1-(3)/(25)=(22)/(25)

Therefore, there are more right-handed than left-handed students.

Learn more about fractions:

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You have 3/5 cup of oatmeal in your cupboard. A recipe for cookies calls for 1/4 cup of oatmeal . How much oatmeal would you have left if you made the cookies ??

Answers

Answer:

The recipe calls for 4/3 cups of oatmeal and 9/2 cups of flour.

If we convert them to a common denominator, we have 8/6 cups of oatmeal and 27/6 cups of flour, so, the ratio is 8:27.

If you use 6 cups of oatmeal and 9 cups of flour, the ratio will become 2:3 and will no longer be proportional

If the 9th term of an A.P is 0, prove that its 29th term is twice its 19th term

Answers

Let the first term, common difference and number of terms of an AP are a, d and n respectively.

Given that, 9th term of an AP, T9 = 0 [∵ nth term of an AP, Tn = a + (n-1)d]

⇒ a + (9-1)d = 0

⇒ a + 8d = 0 ⇒ a = -8d ...(i)

Now, its 19th term , T19 = a + (19-1)d

= - 8d + 18d [from Eq.(i)]

= 10d ...(ii)

and its 29th term, T29 = a+(29-1)d

= -8d + 28d [from Eq.(i)]

= 20d = 2 × T19

Hence, its 29th term is twice its 19th term

Answer:

Proved below.

Step-by-step explanation:

a9 = a1 + 8d = 0          where a1 = first term and d = common difference.

we need to prove that

a1 + 28d = 2(a1 + 18d

simplifying:-

a1  + 36d - 28d = 0

a1 + 8d = 0 which is what we are given.

Therefore  the proposition is true.

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Answers

Answer:

The novel has 180 pages.

Step-by-step explanation:

108 pages is 60% of the novel.

108 / 3 = 36.

20% of the novel is 36 pages.

36 * 5 = 180 pages

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Answers

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you spend $50 on a meal for you and your friends. graph the equation 1.5y+4x=50. x=number of sandwiches bought and x=number of drinks bought.

Answers

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For x=8 y is 12
For x=11 y is 4
Allowing change, x cannot go over 12 (since y must be at least 0), and neither y could go over 32 (since x must be at least 0)

Answer:

use calculator to divide.

Step-by-step explanation:
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Help me PLEASE! I got that answer but I think I'm WRONG