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3 years ago

What is 40 meters in 8 seconds?

2 answers:

4 0

5 meters/ 1 second because if you 40 and 8 you will get 5 and divided 8 by 8 and you get 1, you just divide the denominator by both numerator and denominator.

Scilla [17]3 years ago

3 0

Answer:

Step-by-step explanation:

distance over time you divide

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For a back to school sale the price of a calculator is reduceded from 70% to $59.50. What is the answer

Leona [35]

Thats what i came up with $25.50

7 0

3 years ago

Usmg Cire SOIULIONI LU a LILETAI Equatre

natulia [17]

Answer:

5 – 6x = 8x + 17

⇔ 5 - 17 = 8x + 6x

⇔ -12 = 14x

⇔ x = -6/7

Step-by-step explanation:

7 0

3 years ago

The points with coordinates (x, -1), (2,2), and (4,3) lie on the same line. What is the value of x?

borishaifa [10]

Find the slope of the line passing throught the points (2, 2) and (4, 3).

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

Substitute:

$m=\dfrac{3-2}{4-2}=\dfrac{1}{2}$

If the point (x, -1) lie on the same line, then the slope of line passing through the points (2, 2) and (x, -1) the same:

Substitute:

$m=\dfrac{-1-2}{x-2}=\dfrac{-3}{x-2}$

We have the equation:

$\dfrac{-3}{x-2}=\dfrac{1}{2}$ <em>cross multiply</em>

$(1)(x-2)=(-3)(2)$

$x-2=-6$ <em>add 2 to both sides</em>

$x=-4$

<h3>Answer: x = -4.</h3>

7 0

3 years ago

2. Find the volume of the prism. Round to the nearest tenth.

natita [175]

$\huge\mathcal\pink{ANSWER}$

$\mathsf \purple{ v = \frac{1}{2} (a + b) \times h \times l}$

$\mathsf \pink{v = \frac{1}{2} (5 + 12) \times 6.1 \times 16}$

$\mathsf \purple{v = \frac{1}{2} (17) \times 6.1 \times 16}$

$\mathsf \pink{v = 8 \frac{1}{2} \times 6.1 \times 16}$

$\mathsf \purple{v = 829.6 {mi}^{3} }$

7 0

2 years ago

In the following system of equations, determine whether the system has a unique

Rina8888 [55]

Answer:

the system has a unique solution

Step-by-step explanation:

Start with an equation of a line in standard form,

$ax + by = c$

Solve it for y to put it into the slope-intercept form:

$by = -ax + c$

$y = -\dfrac{a}{b}x + \dfrac{c}{b}$

The slope is -a/b.

Now look at your system of equations. The slope of the first equation is -a/b = -2/3. The slope of the second equation is -a/b = -6/5.

You have a system of two linear equations with two lines with different slopes, so the lines must intersect at a single point.

Answer: the system has a unique solution

5 0

3 years ago