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3 years ago

3+2x=17 I’m taking a test

Mathematics

2 answers:

mihalych1998 [28]3 years ago

8 0

Answer: x=7

Step-by-step explanation:

2x=17-3

2x=14

X=7

SCORPION-xisa [38]3 years ago

7 0

3 + 2x = 17
-3 + 2x = 17 -3
2x = 14
2x/2 = 14/2
x = 7

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What is the slope passing through the points (6,5) and (5,3)

Rus_ich [418]

Answer:

$m=2$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (6, 5)

Point (5, 3)

Step 2: Find slope m

Substitute [SF]: $m=\frac{3-5}{5-6}$
Subtract: $m=\frac{-2}{-1}$
Divide: $m=2$

5 0

3 years ago

A.J. and her sister are entering a 200‑mile bike race on their bicycle built for two. On a training ride, they traveled 60 miles

IrinaK [193]

(180 miles=7.5 hours, 20 miles=2.5/3=0.8333) 7.5+0.8333=8.3333 or 8h and 20 minutes.

3 0

3 years ago

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Andre45 [30]

The answer would be the first one

4 0

3 years ago

Read 2 more answers

A man has n keys on a key ring, one of which opens the door to his apartment. Having celebrated a bit too much one evening, he r

schepotkina [342]

Answer:

The value is $P(3) = \frac{1}{n}$

Step-by-step explanation:

From the question we are told that

The number of keys is n

The number of keys remaining after the first key is chosen is n-1

The probability that he gains entrance with the first key he selects is $\frac{1}{n}$

Generally the probability that the first key does not open the door is

$p(F_1) = 1 - \frac{1}{n} = \frac{n-1}{n}$

Generally the number of keys remaining after the second key is chosen is

n-2

Generally the probability that he gains entrance with the second key he selects is

$\frac{1}{n-1}$

Generally the probability that the second key does not opens the door is

$P(F_2) = 1- \frac{1}{n-1} = \frac{n-2}{n-1}$

Generally the probability that he gains entrance with the third key he selects is

$\frac{1}{n-2}$

Generally the probability that the door opens with the third key

$P(3) = p(F_1) * P(F_2) * \frac{1}{n-2}$

=> $P(3) = \frac{n-1}{n} * \frac{n-2}{n-1} * \frac{n-2}{n-1}$

=> $P(3) = \frac{1}{n}$

Note :

All the outcome of the events are independent

7 0

4 years ago

40 min + 1 hour + 35 minutes =.........h.......min......

Ratling [72]

Answer:

2 hour 15 min

Step-by-step explanation:

60 min = 1 hour

1 hour + 35 min + 40 min

1 hour + 75 min

1 hour + 1 hour + 15 min

= 2 hour 15 min

3 0

3 years ago