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8_murik_8 [283]

3 years ago

11

Kevin reads 5 pages in 15 minutes at this rate how many pages will he read in 45 minutes

1 answer:

Aleksandr-060686 [28]3 years ago

4 0

Answer:

15 pages

Step-by-step explanation:

45/15=3

3x5=15

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What is the unit rate of 20 and four?

ch4aika [34]

20
---- = 5
4

hope helped

6 0

3 years ago

A student wants to buy a violin and take lessons.

Over [174]

Answer:

All together it will be 160

Step-by-step explanation:

3 0

2 years ago

The 190° arc measures 25 mm. What is the diameter of the entire circle?

Ilia_Sergeevich [38]

You can start by converting from degrees to radians and using the relation

$L=r\theta=\dfrac12d\theta$

Or just set up the proportion equation,

$\dfrac{\text{arc length}}{\text{circumference}}=\dfrac{25\text{ mm}}{180^\circ d}=\dfrac{190^\circ}{360^\circ}=\dfrac{\text{angle subtended by arc}}{\text{one revolution}}\implies d=\dfrac5{19}$

5 0

3 years ago

Is 5/4 a solution to the problem: 3(+9)=4−7+7.

Alik [6]

Answer:

No the soultion is not equal to 1 1/4

The solution to the given question is either 6 3/4 or 4 /27

Step-by-step explanation:

Let

3(+9)=(4−7+7)x

27 = 4x

x= 27/4

x= 6 3/4 is the answer

or

Let

3(+9) x=(4−7+7)

27x = 4

x= 4/27

The plus sign inside the bracket indicates that 3 is multiplied with positive nine and -7 and +7 are cancelled and 4 is left behind.

If x is on the left side the answer will be 6 3/4 and if it is on the right side the answer is 4/27 .

In both cases the answer is not equal to 5/4 .

5/4 means 1 1/4 which is not equal to either 6 3/4 or 4/27

5 0

3 years ago

Parallelogram ABCD has vertices at A(2,-3), B(8,-6), Cl14,-3), and D(8,0)

OlgaM077 [116]

Answer:

The correct option is C.

Step-by-step explanation:

The vertices of ABCD are A(2,-3), B(8,-6), C(14,-3), and D(8,0).

Distance formula:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

The length of sides are

$AB=\sqrt{(8-2)^2+(-6+3)^2}=\sqrt{36+9}=\sqrt{45}$

$BC=\sqrt{(14-8)^2+(-3+6)^2}=\sqrt{36+9}=\sqrt{45}$

$CD=\sqrt{(8-14)^2+(0-3)^2}=\sqrt{36+9}=\sqrt{45}$

$AD=\sqrt{(8-2)^2+(0+3)^2}=\sqrt{36+9}=\sqrt{45}$

Since length of all sides are equation therefore the given parallelogram cannot be a rectangle.

Slope formula:

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

Slope of AB is

$m_1=\frac{-6-(-3)}{8-2}=\frac{-3}{6}=\frac{-1}{2}$

Slope of BC is

$m_2=\frac{-3-(-6)}{14-8}=\frac{3}{6}=\frac{1}{2}$

Since the slopes of two consecutive sides are not opposite reciprocals, therefore the given parallelogram is a rhombus. Option C is correct.

8 0

2 years ago