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diamong [38]
2 years ago
11

Negative six times a number, increased by 17, is – 19. Write an equation

Mathematics
1 answer:
Zolol [24]2 years ago
3 0

Answer:

( - 6 \times x) + 17 =  - 19

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Ashley, Frank, and Chang sent a total of 73 text messages over their cell phones during the weekend. Frank sent 7 more messages
jenyasd209 [6]

Answer:

Ashley=13 messages

Frank=20 messages

Chang=2x+14=40 messages

Step-by-step explanation:

Number of texts sent by each person;

Ashley=x

Frank=x+7

Chang=2(x+7)=2x+14

Total number of text messages=Number sent by Ashley+Number sent by Frank+Number sent by Chang

where;

Total number of text messages=73

Replacing;

73= x+(x+7)+(2x+14)

x+x+2x+7+14=73

4x+21=73

4x=73-21

4x=52

x=52/4

x=13

Ashley=13 messages

Frank=x+7=13+7=20 messages

Chang=2x+14=(2×13)+14=40 messages

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3 years ago
Is there any Indian active right now?​
Vera_Pavlovna [14]

Answer:

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7 0
2 years ago
Please help me! :( Will mark as brainliest !!
aev [14]

\frac{(x + 1)(x - 1)}{(x + 3)(x - 3)}  \times  \frac{(x + 3)(x + 5)}{(x - 1)(x + 4)}  =  \frac{(x + 1)(x + 5)}{(x - 3)(x + 4)}
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Which of the following is a Geometric Series?
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I dont know the answer

Step-by-step explanation:

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8 0
3 years ago
There are two boxes containing red and blue balls. For box A, there are 3red balls and 7blue balls. For box B, there are 6red ba
Brums [2.3K]

Answer:

0.3333 = 33.33% probability that this red ball is from box A.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Red ball

Event B: From box A.

Probability of a red ball:

3/10 = 0.3 of 1/2 = 0.5(box A)

6/10 = 0.6 of 1/2 = 0.5(box B). So

P(A) = 0.3*0.5 + 0.6*0.5 = 0.45

Probability of a red ball from box A:

0.3 of 0.5, so:

P(A \cap B) = 0.3*0.5 = 0.15

What is the probability that this red ball is from box A?

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.15}{0.45} = 0.3333

0.3333 = 33.33% probability that this red ball is from box A.

8 0
3 years ago
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