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3 years ago

7

How do you divide -5.2 by 3.9? (step by step) please my test is tomorrow

1 answer:

Arte-miy333 [17]3 years ago

3 0

I would suggest converting to fractions. -5.2 is equal to -52/10, and 3.9 is equal to 39/10. To divide -52/10 by 39/10, multiply -52/10 by the reciprocal of 39/10 (which is 10/39).
So you would set this up like:
-52 10
----- x ----- =
10 39

cancel out the 10s. just divide-52 by 39, and you have your answer.
or divide 52 by 39, just know that the answer will be negative.
52/39=1.33, or 4/3, or 1 1/3.

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Help plz dis is a lil importatnete

Goryan [66]

Following order of operations:

3^2 = 9

(10-2) = 8

Now you have :

9 + 8 x 5 -4

Multiplication is next:

9 + 40 -4

Now just add and subtract from left to right:

9 + 40 = 49

49-4 = 45

The answer is 45

8 0

2 years ago

Read 2 more answers

In rectangle ABCD, AC = -x + 21, BP = -9x + 19, and DP = -y + 5. Find the value of y.

creativ13 [48]

Answer:

y=-5

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The diagonals of a rectangle are equal and bisect each other

so

$BP=\frac{1}{2}AC$

$DP=BP$

step 1

Find the value of x

$BP=\frac{1}{2}AC$

substitute the given values

$(-9x+19)=\frac{1}{2} (-x+21)$

solve for x

Multiply by 2 both sides

$-18x+38=-x+21$

$18x-x=38-21\\17x=17\\x=1$

step 2

Find the value of y

$DP=BP$

we have

$BP=-9x+19$

$DP=-y+5$

substitute

$-y+5=-9x+19$

substitute the value of x

$-y+5=-9(1)+19\\-y+5=10\\y=5-10\\y=-5$

5 0

3 years ago

Add and subtract fractions with negative signs. -4/5 + 6/5=?

V125BC [204]

Answer:

2/5

Step-by-step explanation:

when adding a positive to a negative, you can reverse the order so that you can remove the addition sign:

so instead of -4/5 + 6/5

you can make it 6/5 - 4/5 which equals 2/5 or .4

4 0

2 years ago

Read 2 more answers

The following are the ages (years) of 5 people in a room:

MA_775_DIABLO [31]

Answer:

The person is 14 years old

Step-by-step explanation:

1. Multiply 6 times 18 which is 108

2. Add all numbers together in list which is 94

3. Subtract 94 from 108 which is 14

4. To check answer add 94 plus 14 and divide by 6 and you will get the median which is 18, now you know this answer is correct.

8 0

3 years ago

A painter mix 98.7 gallons of blue paint with 67.05 gallons of red paint in a paint mixing machine how much total paint is in th

Nat2105 [25]

67.05 plus 9807 equals 165.75
There is 165.75 gallons of paint in the machein

6 0

3 years ago