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DedPeter [7]
3 years ago
14

Plz help asap... Explain as much as possible to me plz

Mathematics
1 answer:
Solnce55 [7]3 years ago
3 0

Answer:

see explanation

Step-by-step explanation:

Since the 2 figures are similar then the ratios of corresponding sides are equal, that is

\frac{8}{x} = \frac{18}{6} ( cross- multiply )

18x = 48 ( divide both sides by 18 )

x = \frac{48}{18} = \frac{8}{3} = 2 \frac{2}{3}

Similarly

\frac{5}{y} = \frac{18}{6} ( cross- multiply )

18y = 30 ( divide both sides by 18 )

y = \frac{30}{18} = \frac{5}{3} = 1 \frac{2}{3}

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I don't really get this the one on the bottom but you use the top to solve
Vera_Pavlovna [14]

The percentages for each acid are:

  • 0% acid ⇒ percentage disolved = 0%
  • 33% acid ⇒ percentage disolved = 1%
  • 66% acid ⇒ percentage disolved = 2%
  • 100% acid ⇒ percentage disolved = 4.2%

<h3>How to get the percentages?</h3>

Here we just need to use the given formula:

percent\ disolved = \frac{initial\ mass - \ final \ mass}{initial \ mass}*100 \%

For the 0% acid, the initial and final mass are the same:

initial mass = final mass = 10.3g

Then the percent dissolved is:

percent\ disolved = \frac{10.3g - 10.3g}{10.3g}*100 \% = 0 \%

For the 33% acid we have:

  • initial mass = 10.1g
  • final mass =  10g

Then:

percent\ disolved = \frac{10.1g - 10g}{10.1g}*100 \% = 1 \%

For the 66% acid:

  • initial mass = 10g
  • final mass =  9.8g

percent\ disolved = \frac{10g - 9.8g}{10g}*100 \% = 2 \%

for the 100% acid:

  • initial mass = 9.9g
  • final mass =  9.5g

percent\ disolved = \frac{9.9g - 9.5g}{9.9g}*100 \% = 4.2 \%

If you want to learn more about percentages:

brainly.com/question/843074

#SPJ1

5 0
2 years ago
1, I cannot fail this if I do I have a F in math!! Please make sure u know it’s correct I can’t do it alone.
Anton [14]

Answer:One way of knowing the correct answers, we substitute the ordered pairs to the function and see whether it would make the function true.

3x – 4y = 21

A. (−3, 3)

3(-3) – 4(3) = 21

-21 = 21 ---------------> not equal

B. (−1, −6)

3(-1) – 4(-6) = 21

21 = 21 ---------------> equal

C. (7, 0)

3(7) – 4(0) = 21

21 = 21 ---------------> equal

D. (11, 3)

3(11) – 4(3) = 21

21 = 21 ---------------> equal

3 0
3 years ago
A bucket of candy contains 24 Jolly Ranchers, 18 Hershey Kisses, 12 packs of Smarties, and some Starburst. The probability of re
Papessa [141]

Complete question:

A bucket of candy contains 24 Jolly Ranchers, 18 Hershey Kisses, 12 packs of Smarties, and some Starburst. The probability of reaching in and pulling out a pack of Smarties is 1/6.How many Starburst are in the bucket?

Answer:

18

Step-by-step explanation:

Give the following :

Number of jolly ranchers = 24

Number of Hershey kisses = 18

Number of smarties = 12

Number of Starburst = s

Probability of pulling out a smarties ; P(smarties) = 1/6

Probability = required outcomes / total possible outcomes

Required outcome = 12

Total possible outcomes = (24 + 18 + 12 + s) = 54 + s

P(smarties) = 12 / (54 + s)

1/6 = 12 / 54 + s

1 × (54 + s) = 12 × 6

54 + s = 72

s = 72 - 54

s = 18

Hence number of smarties = 18

5 0
3 years ago
Madison used 4 pears and 12 apples to make a fruit salad. What is the ratio of the
kobusy [5.1K]
The answer is 4

So the ratio would be 12/4
Then u simplify into 4/1 ( I divided each number by 4)
7 0
3 years ago
Given the data presented in the bar graph, which fruit represents 10% of the fruit for the people surveyed? A) Apple B) Banana C
Angelina_Jolie [31]

It must be B banana because it is the smallest compared to the other ones

8 0
4 years ago
Read 2 more answers
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