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Nana76 [90]
3 years ago
6

Finding the Percent of a Numbe Using a Diagram

Mathematics
2 answers:
adoni [48]3 years ago
8 0

Answer:

I got the answer 390 no sure if it's true

11Alexandr11 [23.1K]3 years ago
3 0

Answer: 325% & 25%

Step-by-step explanation:

A:30

B:390

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If y varies directly with x and y is 37.4 when x is 17, what is the value of x when y is 13.2?
borishaifa [10]

Answer:

6

Step-by-step explanation:

We have y ∝ x which is another way of saying y varies directly with x

We can rewrite the direct proportion relation y ∝ x as y = k.x where k is a constant - the constant of proportionality

So y = kx or x = y/k

using y and x values know, we can solve for k and then solve for any x given y

We have

y = 37.4 =  k (17)

Therefore k = (37.4/17) = 2.2

To find x given y = 13.2, use the second equation
x = y/k = 13.2 / 2.2 =  6

8 0
1 year ago
John's monthly paycheck consists of $4000 plus a 9% commission on all of his sales. During one month, John earned $11,650. What
jasenka [17]
Hey there!

Your question states:

 <span>John's monthly paycheck consists of $4000 plus a 9% commission on all of his sales. During one month, John earned $11,650. What were his sales during that month?
</span>
We don't want to 9% to really trick us.

We just do 11,650 - 4,000 = 7,650.

Now, we can adjust everything.

That 9% of the commission on the sales was worth . . . 

7,650

Your correct and clarified answer would be . . .

\boxed{\boxed{\boxed{7,650}}}

Hope this helps.
~Jurgen

7 0
3 years ago
Read 2 more answers
Mattie uses the discriminant to determine the number of zeros the q
enot [183]

Answer:for ax^2+bx+c=0 the discriminant is b^2-4ac

there are 3 basic cases of what happens for different discriminants

1. if the discriminant is less than 0, then there are no real zeroes

2. if the discriminant is 0, then it has 1 zero

3. if the discriminant is greater than 0, it has 2 zeroes

so given

0=3x^2-7x+4

a=3,b=-7,c=4

thus the discriminant is (-7)^2-4(3)(4)=49-48=1

the discriminant is 1. 1 is positive, thus the equation has 2 zeroes because the discriminant is greater than 0

the answer is the equation has two zeroes because the discriminant is greater than 0

Step-by-step explanation:

3 0
3 years ago
Resuelve por el perímetro.<br> 5 cm<br> 8 cm
olga55 [171]

Answer:

5cm

.

.

.

.

.

.

.

.

.

..

..

.

.

..

.

.

8 0
3 years ago
Read 2 more answers
Please help on 7 to be marked the brainliest
sweet [91]

Answer:

  D)  3.57%

Step-by-step explanation:

The percentage change is given by ...

  percent change = ((new value) -(old value))/(old value) × 100%

  = (3.19 -3.08)/3.08 × 100% = 0.11/3.08 × 100% = (11/3.08)% ≈ 3.57%

__

When dealing with percentages, you need to be clear about what number represents 100%, the reference value against which errors or changes are measured. Here, it is the π of the mug, 3.08.

7 0
3 years ago
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