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zaharov [31]
3 years ago
15

Emily added 5 grams of water into 20 grams of 50% salt solution.

Mathematics
1 answer:
atroni [7]3 years ago
5 0
Answers:
She made ___25___ grams of ___40___% salt solution

------------------------------------------------------------------

The given info "20 grams of 50% salt solution" tells us that we have 10 grams of pure salt
Since 50% of 20 = 0.50*20 = 10
Put another way, we have 10 grams of pure salt out of 20 total so 10/20 = 0.50 = 50% salt solution

The 20 grams of solution updates to 25 grams of solution when we add the 5 grams of water
We don't add any salt, assuming this water is fresh water

So we still have 10 grams of pure salt out of 25 grams now
10/25 = 2/5 = 0.40 = 40% is the new salt concentration

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When the input is 200 what is the output? Explain please.
anygoal [31]
The slope formula is delta y/delta x=m
You can choose any two points. Let's choose (0,25) and (1,30)
30-25/1-0=5/1=5
Slope intercept form is y=mx+b
b=the y intercept
y=5x+25 since (0,25) is the coordinates for the y inthercept.
Plug in 200: y=5(200)+25
Simplify and you get that y=1025
Your answer is 1025
Your welcome
4 0
3 years ago
A car rental firm has 410 cars. Sixty-five of these cars have defective turn signals and 35 have defective tires. (Enter your pr
ollegr [7]

Answer:

(a)

Number of cars with defective turn signals = 65

Number of cars with no defective turn signals = 410 - 65 = 345

<u>Required probability:</u>

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(b)

Number of cars with defects = 65 + 35 = 100

Number of cars with no defects = 410 - 100 = 310

<u>Required probability:</u>

  • P = 310/410*100% ≈ 75.61%
3 0
2 years ago
Mr. Johnson's lunch bill is $29.90, which includes a 15% tip. What is the price before the tip?
mr_godi [17]

Answer: it’s 26

Step-by-step explanation:

29.90 divided by 1.15= 26

8 0
3 years ago
Marla is making 6 bracelets for her friends, and she needs of a foot of string for each bracelet. How many feet of string does s
Inessa [10]

Answer:

6 Feet of String.

Step-by-step explanation:

Marla is making 6 Bracelets

Given that each  bracelet requires 1 foot of string

Therefore:

6 bracelets will require 6*1 foot =6 Feet of String.

She will need 6 Feet of String for the bracelets.

6 0
3 years ago
Whitney drinks 1.5liters of water each day what is the total of liquid in liters does Whitney drink each day?
Ganezh [65]
1.5 liters because it says she drinks 1.5 A DAY therefore she drink 1.5 liters of water each day
4 0
3 years ago
Read 2 more answers
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