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Nitella [24]
3 years ago
8

If x/7 =y/5, then 5x=

Mathematics
1 answer:
DIA [1.3K]3 years ago
3 0
X/7 = y/5 then
5x = 7y (just cross-multiply)

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Solve equation. Verify answer 14=-2w
notka56 [123]

Answer:

w = -7

Step-by-step explanation:

Isolate the variable, w. Note the equal sign, what you do to one side, you do to the other.

Divide -2 from both sides:

(14)/-2 = (-2w)/-2

(14)/-2 = w

Note that when you are dividing:

  • 1 negative & 1 positive sign will result in a negative answer
  • 2 negative sign will result in a positive
  • 2 positive sign will result in a positive

In this case:

(14)/-2 = -7

-7 is your answer for w.

~

8 0
3 years ago
4x+12=0 how do you solve
Olenka [21]
Here is how you solve 
4x+12-12=0-12
4x=-12
x=-3
3 0
3 years ago
Read 2 more answers
I need help with penut butter mnm
krok68 [10]

Answer:Peanut butter, Carmel, plain, peanut

Step-by-step explanation:

Each equality is divided by its own mass

3 0
3 years ago
In a certain university, 12 out of 250 first year students like to listen to classical music. We want to test if the percentage
Rudik [331]

Answer:

Therefor it is clear that  the percentage of first year student like to listen classical music is less than 10 %

Step-by-step explanation:

Given as ;

The total number of first year students in an university = 250

The number of student who like to listen classical music = 12 out of 250

Let x % of student like to listen classical music

So, x% of 250 = 12

or, \frac{x}{100} × 250 = 12

or, x × 250 = 12 × 100

Or, x = \frac{1200}{250}

∴   x = 4.8

I.e the percentage of first year student like to listen classical music is 4.8%

Now, Again

The 10% of the total number of student is

I.e 10% of 250

or,   \frac{10}{100} × 250

Or ,  \frac{2500}{100}

I.e The 10% of the total number of student = 25

Since 4.8 % of total number of students is 12 and 10% of total number of students is 25

Therefor it is clear that  the percentage of first year student like to listen classical music is less than 10 %  . answer

3 0
4 years ago
What is an equation of the line, in point-slope form, that passes through the given point and has the given slope? point: (8,-8)
creativ13 [48]
Point slope is y-y1= m(x-x1) where m is slope

Plug the values in:
y-(-8)=3(x-8)

Simplify:
y+8=3(x-8)
3 0
4 years ago
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