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Oksi-84 [34.3K]
2 years ago
11

See attachment. Please give step by step solution. Thank you

Mathematics
1 answer:
Dmitry_Shevchenko [17]2 years ago
7 0

Answer:

x=19

Step-by-step explanation:

cross multiply

(−3)(+5)(3+5)=(−3)(+5)⋅2−3

(−3)⋅3=(+5)⋅2

3(−3)=(+5)⋅2

=19

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Rational numbers with distribute property
Svetradugi [14.3K]

I'm not sure what this means. If you have choices you should list them.

(1/2)*(1/4 + 1/6) is an example of what should be given. There are two ways to solve this.

1. Use the distributive property.

1/2*1/4 + 1/2* 1/6

1/8 + 1/12 Which can be added using the LCD of 24

3/24 + 2/24 = 5/24

Method 2

Add what is inside the brackets first.

1/2 ( 1/4 + 1/6)

1/2(3/12 + 2/12 = 5/12

Now multiply by 1/2

1/2(5/12) = 5*1/(12 * 2) = 5 / 24 Same answer.

4 0
3 years ago
X = -2y + 300 3y = 800 - 4x
devlian [24]

Answer:

<h2>x = 140, y = 80</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}x=-2y+300&(1)\\3y=800-4x&(2)\end{array}\right\\\\\text{Substitute (1) to (2):}\\\\3y=800-4(-2y+300)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\3y=800+(-4)(-2y)+(-4)(300)\\\\3y=800+8y-1200\\\\3y=8y-400\qquad\text{subtract}\ 8y\ \text{from both sides}\\\\-5y=-400\qquad\text{divide both sides by (-5)}\\\\y=80\\\\\text{Put it to (1):}\\\\x=-2(80)+300\\\\x=-160+300\\\\x=140

8 0
3 years ago
Read 2 more answers
A small black cloth bag holds two red counters, two green counters, two
pentagon [3]

Answer:

1/14

Step-by-step explanation:

P(red, then black) = \frac{2}{8} · \frac{2}{7} = \frac{4}{56} = \frac{1}{14} (simplifed form)

7 0
2 years ago
Over a four day period, Alice received four injections, each containing 22 milliliter of penicillin. In total how many cubic cen
vitfil [10]
The answer is 88 penicillin

5 0
3 years ago
Read 2 more answers
you deposit 1,750 into an interestmemt account that will produce 6.05% annual interest the money was left in the account for 2 y
Ymorist [56]

Answer:

i dont know mabey someone else knows

5 0
3 years ago
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