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kobusy [5.1K]
2 years ago
10

3. A pharmacist needs a blend of chemical containing 35% of manganese but she has one vial

Mathematics
1 answer:
Gennadij [26K]2 years ago
7 0
Mi hermano me dice que no tengo nada que ver con el que no me deja
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Blake and Ned work for a home remodeling business. They are putting the final touches on a home they renovated. Working alone, B
gizmo_the_mogwai [7]

Answer: The time taken by both of them if they work together is given by

3\dfrac{3}{5}\ hours

Step-by-step explanation:

Since we have given that

Time taken by Blake to paint one room = 9 hours

Time taken by Ned to paint one room = 6 hours

Work done by Blake  = \dfrac{1}{9}

Work done by Ned = \dfrac{1}{6}

Total work done by both of them together is given by

\dfrac{1}{6}+\dfrac{1}{6}\\\\=\dfrac{3+2}{18}\\\\=\dfrac{5}{18}

So, the time taken by both of them if they work together is given by

\dfrac{18}{5}=3\dfrac{3}{5}\ hours

7 0
3 years ago
Read 2 more answers
In the following, after distributing and solving, find the error.
larisa86 [58]
After 6x+48=72, you have to subtract 48 on both sides not add. Your final answer will be x=4. 72-48=24.. 24/6= 4.
8 0
3 years ago
9). Four friends earned $4.20 for washing a car. They decided to split the money equally. How much money did each friend get?​
V125BC [204]

Answer:

1.05

Step-by-step explanation:

4 0
3 years ago
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Solving equations -3x+7=28?
AURORKA [14]

Answer:

x = - 7

Step-by-step explanation:

- 3x + 7 = 28

- 3x + 7 - 7 = 28 - 7

- 3x = 21

- 3x/3 = 21/3

- x = 7

x = - 7

3 0
3 years ago
Read 2 more answers
Use the formula to find the length of the base next to the goal given that the height of the trapezoid is 11ft and the base fart
Liono4ka [1.6K]

Answer:

b1 = 22 ft

the length of the base next to the goal is 22 ft

Step-by-step explanation:

From the given formula;

Area A = 1/2×(b1 + b2)h ........1

Given;

Area A = 275ft^2

base b2 = 28 ft

base b1 = ?

height h = 11 ft

From equation 1;

Making b1 rhe subject of formula;

A = 1/2×(b1 + b2)h

Multiply through by 2;

2A = (b1+b2)h

b1+b2 = 2A/h

b1 = 2A/h - b2 ...... 2

Substituting the given values into equation 2;

b1 = 2(275)/11 - 28

b1 = 50 - 28

b1 = 22 ft

the length of the base next to the goal is 22 ft

5 0
3 years ago
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