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Genrish500 [490]

3 years ago

11

Max Steel drives his 1969 Mustang 15 miles per hour. If there are 5280 feet in one mile and 60 seconds in one minute, how many f

eet can he go per second?

1 answer:

shutvik [7]3 years ago

8 0

Answer:

22 feet per second

Step-by-step explanation

15x5280=79,200

79,200/60=1320 feet per minute since 60 minutes per hour

1320/60=22 feet per second since 60 seconds per minute

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Olivia family drove to Disney land For spring break. Her mom and dad shared the driving duties for a total of 14 hours. her mom

Troyanec [42]

For this case we propose a system of equations:

x: Variable that represents the amount of hours that Olivia's mother drove

y: Variable that represents the amount of hours that Olivia's father drove

So, we have:

$x + y = 14\\65x + 60y = 895$

From the first equation we have:

$x = 14-y$

Substituting in the second equation:

$65 (14-y) + 60y = 895\\910-65y + 60y = 895\\-5y = 895-910\\-5y = -15\\y = \frac {15} {5}\\y = 3$

Thus, Olivia's father drove 3 hours.

$x = 14-3 = 11$

Olivia's mother drove 11 hours.

Answer:

$(x, y) :( 11,3)$

5 0

3 years ago

What is 70% of 45?????????

borishaifa [10]

Answer:

31.5

Step-by-step explanation:

4 0

3 years ago

In the xy-plane, line l has a y-intercept of -13 and is perpendicular to the line with the equation y=-2/3x. If the point (10, b

AlekseyPX

Answer:

The value of $b$ is 2.

Step-by-step explanation:

The standard form of the equation of the line is of the form:

$y = m\cdot x + k$

Where:

$x$ , $y$ - Independent and dependent variable, dimensionless.

$m$ - Slope, dimensionless.

$k$ - y-intercept, dimensionless.

Given that line $l$ is perpendicular to $y = -\frac{2}{3}\cdot y$ , the slope is equal to:

$m = -\frac{1}{m_{\perp}}$

Where $m_{\perp}$ is the slope of the perpendicular line, dimensionless.

If $m_{\perp} = -\frac{2}{3}$ , then:

$m = -\frac{1}{\left(-\frac{2}{3}\right) }$

$m = \frac{3}{2}$

If $x = 0$ and $y = -13$ , the y-intercept of the line $l$ is:

$-13 = \frac{3}{2}\cdot (0) +k$

$k = -13$

The equation of the line $l$ is $y = \frac{3}{2}\cdot x -13$ . Given that $y = b$ and $x = 10$ , the value of $b$ is:

$b = \frac{3}{2}\cdot (10)-13$

$b = 15-13$

$b = 2$

The value of $b$ is 2.

5 0

3 years ago

How many miles will a person run during a 10 kilo run

alina1380 [7]

A person will run 6.2137 miles since you can convert 10 km or kilo to miles

I hope this helped

4 0

4 years ago

Read 2 more answers

One side of a kite is 8 cm less than four times the length of another side. The perimeter of the kite is 78 cm. Find the lengths

Yuliya22 [10]

Answer:

$9.4\:\mathrm{cm},\\9.4\:\mathrm{cm},\\29.6\:\mathrm{cm},\\29.6\:\mathrm{cm}$

Step-by-step explanation:

A kite consists of two pairs of congruent adjacent sides. Therefore, we have the following equation:

$2x+2(4x-8)=78$ , where $x$ is the length of the shorter sides.

Solving, we get:

$2x+8x-16=78,\\10x=94,\\x=\fbox{$9.4\:\mathrm{cm}$}$ .

Plugging in $x=9.4$ into $4x-8$ , we get:

$4(9.4)-8,\\37.6-8,\\\fbox{$29.6\:\mathrm{cm}$}$ .

Therefore, two sides have length $9.4\:\mathrm{cm}$ and two sides have length $29.6\:\mathrm{cm}$ .

3 0

3 years ago