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d1i1m1o1n [39]
3 years ago
12

he value of y varies directly with the value of x. When y = 32.5, x = 5. What is the value of y when x = 10? A) 1.5 B) 2.2 C) 37

.5 D) 65 WILL MARK BRAINLEST
Mathematics
2 answers:
xz_007 [3.2K]3 years ago
7 0

Answer:

D) 65

Step-by-step explanation:

The formula for direct variation is

y = kx

where k is the constant of variation.


If we know y=32.5 and x=5, we can substitute in to calculate k

32.5 = k * 5

Divide each side by 5

32.5/5 = k

6.5 = k

So the equation is

y = 6.5k

Given x =10

y = 6.5*10

y = 65

nignag [31]3 years ago
4 0
D) 65 is the best answer
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I think the answer is C
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I have a 79.43 and if I add 10% would it raise it to 80% grade wise
Nezavi [6.7K]

Answer:

87 grade

Step-by-step explanation:

if yo add a 10% overall grade to you 79.43 you will get an 87.373

79.43 x 10% = 7.943 (points added bc of your 10%added)

79.43 + 7.943 = 87.373

round it and you'll have 87 overall grade

4 0
2 years ago
I’m really confused somebody please help
Nady [450]
Answer: The mechanic worked for 4.25 hours for the fourth customer.

First find out the slope.
Y^2-y^1/x^2-x^1
210-90/3-1=60

Slope: 60

Then find out what the y-intercept is by plugging in values we know into y=mx+b

90=60(1)+b
30=b

Y=60x+30

Substitute the y with 285 to find out the x (hours)

285=60x+30
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5 0
3 years ago
The distance between -18 and 15 is equal to_______
ArbitrLikvidat [17]

Answer:

sorry I forgot try googling it

3 0
3 years ago
Why does it make sense that 4 x (-3) and -3 x 4 have the same product?
Contact [7]

Answer:

hello!!!

We will learn it simple method,we know that multiplication of whole numbers is repeated addition. For example

3*4= 4+4+4

in this same way we can say that

[-12]=(-3)+(-3)+(-3)+(-3)

also,

4(*-3)=(-12)

for the second equation we can take it same as the above one

So it make no diffrence when we multiplied integers as (positive)*(negative) OR (NEGATIVE)*(POSITIVE)

And so now we can say

FOR ANY TWO POSITIVE INTEGER a and b WE CAN SAY

 (-a) *(b) = (-b)*(a) = -(a*b)

HOPE FULLY U MAY LIKED MY ANSWER GIVE POSITIVE FEEDBACK AND IF WANTS ANYTHING OTHER YOU MAY ASK ME IN COMMENT

7 0
1 year ago
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