All categories

3 years ago

20 points

Mathematics

2 answers:

gavmur [86]3 years ago

6 0

Answer:

Michael buys 800 hockey cards from jackson

bezimeni [28]3 years ago

3 0

Answer:

<u>480 cards</u>

Step-by-step explanation:

<u>Step 1: No. of cards Jackson is selling</u>

=> 1000 x 60%

=> 1000 x 0.6

=> 600 cards

<u>Step 2: No. of cards Michael buys</u>

=> 600 x 80%

=> 600 x 0.8

=> <u>480 cards</u>

You might be interested in

Maddie took a rock-climbing course at Boulder Bend Rock Gym. In addition to the fee for the 8 classes she took, the rock gym cha

Anika [276]

Answer:$9

Step-by-step explanation:

65+8x=137

137-65=72

72/8=9

3 0

3 years ago

3. y=37x+11y=37x+11 -3x + 7y = 13 Part A: Convert the second equation to slope-intercept form. Show your work! Part B: Determine

melamori03 [73]

We are given first equation y= $\frac{3}{7}$ x+11.

Second equation is -3x + 7y = 13.

Part A: We need to convert that second equation in slope-intercept form y=mx+b.

In order to convert it in slope-intercept form, we need to isolate it for y.

-3x + 7y = 13

Adding 3x on both sides, we get

-3x+3x + 7y = 3x+13

7y = 3x +13.

Dividing both sides by 7, we get

7y/7 = 3x/7 +13/7.

Slope for first equation y=3/7 x +11 is 3/7 and slope of second equation y= 3/7 x + 13/7 is also 3/7.

Slopes are same for both equations.

<h3>Part B: Therefore, lines are parallel due to equal slopes.</h3>

7 0

3 years ago

The function V(S) = 0.094S can be used to find the approximate volume of a sphere (V, in cubic units) in terms of its surface ar

trasher [3.6K]

<span>We have V= 0.094 S.
We also have V = 1930.75 cm^3.
Plug in this value in the formula </span>V= 0.094 S, to get

1930.75 = 0.094 S
>> 1930.75 / 0.094 = S
>> S = 20539.89 cm^2
<span>

</span>

5 0

3 years ago

Find the missing part.

Katarina [22]

Answer:

$z = 15[\frac{\sqrt{3}}{2}]$

Step-by-step explanation:

To find the Z-side, we must take the cosine of the 30-degree angle of the main triangle

We know that the cosine of an angle is defined as:

$cos(30) = \frac{adjacent\ side}{hypotenuse}$

$cos(30) = \frac{\sqrt{3}}{2}$

$\frac{\sqrt{3}}{2}} = \frac{z}{15}$

Then:

$z = 15[\frac{\sqrt{3}}{2}}]$

Finalmente the side z is:

$z = 15[\frac{\sqrt{3}}{2}}]$

7 0

4 years ago

Read 2 more answers

If you can help please do! Thank you!

Aleks [24]

Answer:

see explanation

Step-by-step explanation:

The diagonals of a parallelogram bisect each other , then

CO = OA = b

DO = OB = a

(a)

CA = CO + OA = b + b = 2b

(b)

DC = DO + OC = a - b

(c)

CB = CO + OB = b + a = a + b

7 0

3 years ago