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Tamiku [17]
2 years ago
7

Wats da distance between 13 and -5

Mathematics
2 answers:
levacccp [35]2 years ago
6 0
You would add them together if it’s on a number line bc u have to go 5 to get to 0 then another 13 so 13+5=18
enyata [817]2 years ago
3 0

Answer:

8

Step-by-step explanation:

131211109876543210-1-2-3-4-5

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Solve mixture problems. George wishes to increase the percent of acid in 50m / of a 15% acid solution in water to 25% acid, how
fenix001 [56]

Answer:

x = amount of pure acid to be added = 6.67ml

Step-by-step explanation:

George wishes to increase the percent of acid in 50ml of a 15% acid solution in water to 25% acid, how much pure acid must you add?

let

x = amount of pure acid to be added

15% of 50 + x = 25% of 50 + x

(0.15 * 50) + x = 0.25(50 + x)

7.5 + x = 12.5 + 0.25x

Collect like terms

x - 0.25x = 12.5 - 7.5

0.75x = 5

x = 5/0.75

x = 6.6666666666666

Approximately,

x = 6.67

x = amount of pure acid to be added = 6.67ml

7 0
3 years ago
What is the solution to the system below? <br> x + 3y = 0<br> 2x - y = -7
sasho [114]

( x, y ) = ( -3, 1 )

hope it helps!

8 0
2 years ago
Diane has $20 in a savings account that earns 5 % annually. How much will she earn in interest in 1 year?
natta225 [31]

Answer:

$21

Step-by-step explanation:

Given data

Principal= $20

Rate = 5%

time= 1 year

Required

The final amount A

Applying the simple interest formula

A= P(1+rt)

substitute

A=20(1+0.05*1)

A=20(1.05)

A=20*1.05

A=$21

Hence she will earn $21

8 0
3 years ago
Which is the graph of f(x) = Square root of x?
natka813 [3]

Answer:

Third option given

Step-by-step explanation:

On a coordinate plane, a parabola opens to the right with a vertex at (0, 0).

use the following x values to plot the associated y values on the x-y plane:

If x = 0,  then y=\sqrt{0}  =0

If x = 1,  then y=\sqrt{1}  =1

If x = 4,  then y=\sqrt{4}  =2

If x = 9,  then y=\sqrt{9}  =3

Join the points and you will find a branch of a parabola opening to the right.

7 0
3 years ago
Read 2 more answers
Find the length of GH.
Yanka [14]

Answer:

length ofGH

Step-by-step explanation:

distance=√{(-2+9)²+(-6+4)²}=√{7²+(-2)²}=√53=7.28=7.3 units

4 0
2 years ago
Read 2 more answers
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