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3 years ago

5 3 4 7 26 30

Mathematics

2 answers:

erik [133]3 years ago

8 0

Ok so it goes up by 2 then by 1 then 3 then 4 then down 21

Furkat [3]3 years ago

4 0

Please explain more to the question where do the numbers go

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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

1/2r+2(3/4r-1)=1/4r+6

bixtya [17]

I think r should equal 32/7

3 0

3 years ago

Determine the coordinates for the intersection of the diagonals in RSTU with vertices at R(-8,-2),S(-6,7), T(6,7) and U(4,-2)

irina [24]

It is answer choice A. (-1, 2.5)

6 0

3 years ago

Read 2 more answers

I need help with my math

Tresset [83]

What is the question

3 0

3 years ago

The options are<br> 40<br> 80<br> 120<br> 140

Nataly [62]

According to given figure,

$\qquad \sf \dashrightarrow \: \angle ABC + 60° = 180°$

$\qquad \sf \dashrightarrow \: \angle ABC = 180 \degree - 60 \degree$

[ By linear pair ]

$\qquad \sf \dashrightarrow \: \angle ABC = 120 \degree$

now, we can see that :

$\qquad \sf \dashrightarrow \: \angle ABC + \angle BAC = \angle 1$

[ By Exterior angle property of Triangle ]

$\qquad \sf \dashrightarrow \: \angle 1 = 20 \degree + 120 \degree$

$\qquad \sf \dashrightarrow \: \angle 1 = 140 \degree$

4 0

2 years ago