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3 years ago

What is written as a decimal?A. 0.24 B. 0.333 C. 0.375 D. 0.38 E. 0.75

Mathematics

1 answer:

Allushta [10]3 years ago

7 0

Answer:

0.75

Step-by-step explanation:

i do not completely understand what you are asking.

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What is the standard form of 13.8

Evgen [1.6K]

10+3+.8

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3 years ago

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Several times a week, Chuck goes to the gym to run andswim. When running, heburns 35 calories per minute. When swimming,he burns

ICE Princess25 [194]

Answer:

Chucks spent 8 minutes running and 15 minutes swimming

Step-by-step explanation:

Here, we want to know the amount of time Chuck spends on individual activities.

since the total time spent for the burning is 23 minutes;

then ;

r + w = 23 ••••••••(i)

Now, the number of calories burnt to running for r minutes will be r * 35 = 35w calories

The number of calories burnt to swimming for w minutes will be w * 30 = 30w calories

The addition of both gives the total calories burnt;

Hence;

35r + 30w = 730 ••••••••(ii)

So we have two equations to solve simultaneously ;

From i; r = 23-w

Substitute this into ii

35(23-w) + 30w = 730

805 -35w + 30w = 730

35w -30w = 805-730

5w = 75

w = 75/5

w = 15 minutes

but r = 23 - w

r = 23 -15

r = 8 minutes

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3 years ago

Oleta has five times as many pennies as quarters. Altogether she has $1.80 how many of each coin does she have

Vaselesa [24]

She has 45 pennies and 9 quarters

5:1

P:Q

0.01:0.15

0.05:0.15 0.1:0.3 0.15:0.45 0.2:0.6 0.25:0.75 0.3:0.9 0.35:1.05 0.4:1.2
0.45:1.35

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3 years ago

An elementary school is offering 2 language classes: one in Spanish (S) and one in French (F). Given that P(S) = 50%, P(F) = 40%

nikklg [1K]

Answer:

(a) Probability that a randomly selected student is taking Spanish given that he or she is taking French = 0.5 .

(b) Probability that a randomly selected student is not taking French given that he or she is not taking Spanish = 0.6 .

Step-by-step explanation:

We are given that an elementary school is offering 2 language classes ;

Spanish Language is denoted by S and French language is denoted by F.

Also we are given, P(S) = 0.5 {Probability of students taking Spanish language}

P(F) = 0.4 {Probability of students taking French language}

$P(S\bigcup F)$ = 0.7 {Probability of students taking Spanish or French Language}

We know that, $P(A\bigcup B)$ = $P(A) + P(B) -$ $P(A\bigcap B)$

So, $P(S\bigcap F)$ = $P(S) + P(F) - P(S\bigcup F)$ = 0.5 + 0.4 - 0.7 = 0.2

$P(S\bigcap F)$ means Probability of students taking both Spanish and French Language.

Also, P(S)' = 1 - P(S) = 1 - 0.5 = 0.5

P(F)' = 1 - P(F) = 1 - 0.4 = 0.6

$P(S'\bigcap F')$ = 1 - $P(S\bigcup F)$ = 1 - 0.7 = 0.3

(a) Probability that a randomly selected student is taking Spanish given that he or she is taking French is given by P(S/F);

P(S/F) = $\frac{P(S\bigcap F)}{P(F)}$ = $\frac{0.2}{0.4}$ = 0.5

(b) Probability that a randomly selected student is not taking French given that he or she is not taking Spanish is given by P(F'/S');

P(F'/S') = $\frac{P(S'\bigcap F')}{P(S')}$ = $\frac{1- P(S\bigcup F)}{1-P(S)}$ = $\frac{0.3}{0.5}$ = 0.6 .

Note: 2. A pair of fair dice is rolled until a sum of either 5 or 7 appears ; This question is incomplete please provide with complete detail.

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3 years ago

3 Ingrid earns $200 each week in salary plus a 20% commission (bonus) on her total sales. If Ingrid wants to earn a total of $40

mezya [45]

Answer:

400 = 200 + 0.20x

Step-by-step explanation:

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2 years ago

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