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algol13
3 years ago
9

May I get help on this I am struggling with math

Mathematics
2 answers:
Travka [436]3 years ago
7 0
The answer is 10 milligrams of Medication A. When you divide 18 by 3 for Medication B, you get 6. Then you have to divide 60 by 6 and you get 10 milligrams.
Vesna [10]3 years ago
5 0
60/18 = A/3....60 in A to 18 in B = x in A to 3 in B
cross multiply because this is a proportion
(18)(A) = (60)(3)
18A = 180
A = 180/18
A = 10 milligrams <===
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What should be added to both sides of this equation to solve for the variable? r + (-12) = 19
Slav-nsk [51]

Answer:

12

Step-by-step explanation:

Then the -12 and +12 will cancel out, so you're left with a clean isolated r on the left:

r -12 +12 = 19 + 12

r = 31

5 0
3 years ago
Read 2 more answers
the rectangular post shown at the right measures 2w-30 by w. the poster has an area of 5400 cm^2. what is The value of w ?
borishaifa [10]

Step-by-step explanation:

w(2w - 30) = 5400

2w²- 30w = 5400

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therefore w = 60

3 0
2 years ago
Write an equation for each line.
Tems11 [23]

Answer:

Step-by-step explanation:

Equation of blue line:

blue line is parallel to y-axis

⇒ x = 5

Equation of green line:

Green line is parallel to x-axis.

y = 2

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At y-intercept x = 0. Point on red line is (0,5)

So, y-intercept = 5

y = mx + b Here,  m is slope any b is y-intercept.

y = mx + 5

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7 = m*1 + 5

7 - 5 = m

m = 2

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Equation of black line:

Black line and red line are parallel and so, they have same slope.

y = 2x + b

y-intercept (0,-6) ; b = -6

y = 2x - 6

5 0
2 years ago
Help with geometry will mark brainliest for correct anwsers
Veseljchak [2.6K]
The first one is (-2,1)
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4 0
3 years ago
If you want brainiest and thanks and 10 points please help me with this question... Evaluate a+(−b) where a=4 and b=2
Vesna [10]

Answer:

a + (-b) = 4 + (-2) = 4 - 2 = 2


6 0
3 years ago
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