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andreev551 [17]

3 years ago

15

PLEASE HELP!! THANKS!! WILL GIVE BRAINLIEST!!

1 answer:

marishachu [46]3 years ago

7 0

Answer:

the third from the top option

Step-by-step explanation:

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Paul and Charlene are 420 miles apart. They start toward each other with Paul driving 16 mph faster than Charlene. They meet in

Thepotemich [5.8K]

Answer:

34 mph.

Step-by-step explanation:

Let x be speed of Charlene, then speed of Paul will be x+16 as we are given that Paul is driving 16 mph faster than Charlene.

Let y be distance covered by Charlene, then distance covered by Paul will be 420-y.

Now we will use formula $\text{Speed}=\frac{\text{Distance}}{\text{Time}}$ . Upon using our given information we will get two equation and two unknowns as:

$x+16=\frac{420-y}{5}...(1)$

$x=\frac{y}{5}...(2)$

Upon substituting $x=\frac{y}{5}$ in 1st equation we will get,

$\frac{y}{5}+16=\frac{420-y}{5}$

Upon multiplying both sides of our equation by 5 we will get,

$5(\frac{y}{5}+16)=420-y$

$5\times\frac{y}{5}+5\times 16=420-y$

$y+80=420-y$

$y+80+y=420-y+y$

$2y+80=420$

$2y=420-80$

$2y=340$

$y=\frac{340}{2}$

$y=170$

Upon substituting y=170 in 2nd equation we will get,

$x=\frac{170}{5}$

$x=34$

Therefore, Charlene's speed is 34 miles per hour.

6 0

3 years ago

If 20 articles cost ? 90, then the cost of 9 articles is ?<br> ? 45<br> ? 4.50<br> ? 40.50<br> ? 42

lapo4ka [179]

Answer:

40.50 is correct answer according to me

5 0

3 years ago

A bag contains 3 red pens 5 blue pens and 2 black pens a pen is selected at random and is not replaced what is the probability o

LUCKY_DIMON [66]

Answer: 1/6

Step-by-step explanation:

4 0

3 years ago

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What is the equation of the line that passes through the point (3,2) and has a slope of 2/3

Sladkaya [172]

Answer:

y= ⅔x +1

Step-by-step explanation:

$(3,2) = (x_1,y_1) \\ m = \frac{2}{3}$

Substitute values into point slope form

$y -y_1 = m(x - x_1) \\ y - 2 = \frac{2}{3} (x - 3) \\ y - 2 = \frac{2}{3} x - 1 \\$

$y = \frac{2}{3} x - 1 + 2 \\ y = \frac{2}{3} x + 1$

5 0

3 years ago

The hypotenuse of a right triangle is twice the length of one of its legs. The length of the other leg is three feet. Find the l

Alinara [238K]

Use Pythagorean theorem for side1 = a, side2 = 3, and hypotenuse = 2a
    a² + b² = c²
a² + (3)² = (2a)
a² + 9 = 4a²
      9 = 3a²
      3 = a²
   √3 = a

side1 = a = √3 ft
side2 = 3 ft (this was given in the problem)
hypotenuse = 2a = 2√3 ft

3 0

4 years ago

Read 2 more answers