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vladimir1956 [14]
3 years ago
14

Marking brainliest

Mathematics
1 answer:
laiz [17]3 years ago
5 0

Answer:

23.1\%

Step-by-step explanation:

Stefanie's mixture of 18 grams has a 20% sugar content. Therefore, there are  grams of sugar in her syrup.

John's mixture of 30 grams has a 25% sugar content. Therefore, there are  grams of sugar in her syrup.

Therefore, if they mix their syrups together, there will be 11.1 grams of sugar and 48 total grams of content.

The concentration of sugar in the new mixture is \frac{11.1}{48}=\fbox{$23.1\%$}(rounded to one decimal place).

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20 POINTS FOR WHOEVER ANSWERS FIRST-
Komok [63]
Okay so you take the number of weekdays to the number of weekends the ratio is 5:2 one month, which usually has 30 days which is 4 weeks tops so that is about 21 week days and and 9 weekends then times both by 12 you get 108 weekends and 252 weekdays i know that only equals 360 but this is a rough estimate so write that as a fraction 3/7 so there is a third that it will be on a weekday 
4 0
4 years ago
PLEASE HELP AND GIVE AN EXPLANATION A rectangular prism has a volume of 170 cm the length of the prism is 5 cm in the height of
IgorC [24]

Answer:

The width of the prism is 2 cm

Step-by-step explanation:

The given parameters are;

The volume of the prism = 170 cm³

The length of the prism = 5 cm

The height of the prism = 17 cm

The volume of the prism is given by the  relationship v = Length, l × Height, h × Width, w

Therefore;

The volume of the prism = 5 cm × 17 cm × w = 170 cm³

Which gives;

w = 170 cm³/(5 cm × 17 cm) = 170 cm³/(85 cm) = 2 cm

∴ The width of the prism = 2 cm.

7 0
3 years ago
Gene is playing a game with a bag of marbles. 3 of the marbles are blue, 4 are green, and 7 are yellow. See below for awarded pr
jek_recluse [69]

Answer:

<h2><em>$23.5</em></h2>

Step-by-step explanation:

Gene is playing a game with a bag of marbles. If 3 of the marbles are blue, 4 are green, and 7 are yellow and awarded prices for the marbles are $2 green $0.5 yellow $4 blue, the expected payout for Gens game is expressed as shown;

If a blue marble costs $4, 3 blue marbles will cost 3*$4 = $12

If a green marble costs $2, 4 green marbles will cost 4*$2 = $8.0

If a yellow marble costs $0.5, 7 yellow marbles will cost 7*$0.5 = $3.5

Total payout for Gene's game will be the equivalent to $12+ $8 + $3.5 = $23.5.

<em>Hence Gene expected cost will be $21.5</em>

5 0
3 years ago
Is 0, 2, 4, 6, a arithmetic sequence
amid [387]
Yes, 0 + 2 = 2
2 + 2 = 4
4 + 2 = 6.
Since they're just ADDING 2, not MULTIPLYING by 2, it's arithmetic, not geometric.
6 0
3 years ago
Read 2 more answers
Information on a packet of seeds claims that 93% of them will germinate. Of the 200 seeds that I planted, only 175 germinated. (
Anvisha [2.4K]

Answer:

We reject H₀

we accept Hₐ seeds in the packet would germinate smaller than 93%

Step-by-step explanation:

Test of proportions

One tail-test  (left side)

93 %   =  0.93

p₀  =  0,93

1.- Hypothesis

<h3>H₀            ⇒ null  hypothesis                p₀ = 0.93</h3><h3>Hₐ            ⇒ Alternative hypothesis     p  = 0.875</h3><h3>2.-Confidence interval   95 %</h3><h3>α = 0,05  </h3><h3>and </h3><h3>z(c)  =  -  1.64</h3><h3>3.- Compute z(s)</h3><h3>z(s) = (p  -  p₀)/√(p₀*q₀)/n    z(s) = (0.875-0.93)/√0.93*0.07)200</h3><h3>z(s) =  -  0,055/ √0.0003255</h3><h3>z(s) =  - 0.055/ 0.018</h3><h3>z(s) =  - 3,06</h3><h3>4.-Compere z(c)   and  z(s)</h3><h3>z(s)  <  z(c)          -3.06  <  -1.64</h3><h3>z(s)  is in rejection region, we reject H₀</h3>
5 0
3 years ago
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