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topjm [15]
3 years ago
14

» Which three cards have equal values?

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
5 0

Answer:  3 x 42 , 3(40 +2), (3 x 40) + (3 x 2)

Step-by-step explanation:

3 x 42 = 126

4 x 32 = 128

3 ( 40 + 2) = 3 x 40 + 3 x 2 = 126

4x ( 30 + 20) = 4x x 30 + 4x x 20 = 200x

(3 x 40) + (3 x 2) = 126

( 4 x 3) + ( 4 x 2) = 20

You might be interested in
(03.02 MC)The number of pages that Ana, Hillary, Roger, and Juan can read in a day is shown below:
IgorLugansk [536]

Answer:

Juan

Step-by-step explanation:

The number of pages that Ana, Hillary, Roger, and Juan can read in a day is shown below:

For Ana

Ana read 15% of her 46-page book.

= 15% × 46 pages

= 6.9 pages

For Hillary

Hillary read 11% of her 72-page book.

= 11% × 72 pages

= 7.92 pages

For Roger

Roger read 12% of his 68-page book.

= 12% × 68 pages

= 8.16 pages

For Juan

Juan read 14% of his 69-page book.

= 14% × 69 pages

= 9.66 pages

The person who can read greatest number of pages in a day also means the person who read the highest number of pages in a day.

From the calculation above, that person in JUAN because she can read 9.66 pages of her book in one day.

5 0
3 years ago
Factor completely X⁴-10x²+9. Please show all work.​
Tanya [424]

Answer:

Let y=x² . Then:

x4−10x2+9=y2−10y+9

y²-10y+9=(y-9)(y-1)

Substitute x² for y:

x4−10x2+9=(x2−9)(x2−1)

x²-9=(x+3)(x-3)

x²-1=(x+1)(x-1)

x4−10x2+9=(x+3)(x−3)(x+1)(x−1)

3 0
4 years ago
Ad claims 5 out of 6 students prefer talking than texting. Is the prediction correct is 500 out of 60? Explain why predicting is
balandron [24]

Answer:

Step-by-step explanation:5/6 is 0.83 as a decimal you need to multiply that by 500 to see that 415 out of 500 would prefer talking to texting

5 0
3 years ago
13.) An electrician has a piece of wire that is 3 feet long (36 inches). She needs a piece that is exactly 31.05 inches to fit p
iren [92.7K]

Answer:  4.95 inches

Subtract:  36 - 31.05 = 4.95

Step-by-step explanation:

<em>Whoever created this question hasn't done much real electrical work! </em>

<em>An outlet (also known as a receptacle) usually requires about 4 to 6 inches of wire within the </em><u><em>junction box</em></u><em> to make the connections, depending on what else may be connected in the box. We don't have to measure to 0.05 of an inch. The insulation may have to be stripped precisely to 3/8, 1/2 or 5/8 inch for connections.  </em>

The electrician used 3 feet of cable between junction boxes, and had 8 ¹/₂ inches pulled through the junction box. She needed 4 inches to connect the receptacle. How much the excess did she have to cut off?

Math questions should be realistic.

3 0
3 years ago
Question 15(Multiple Choice Worth 1 points) (06.04 MC) The expression to find the perimeter of a rectangle is 2(length + width).
vodomira [7]

Answer: 1 2/3

Step-by-step explanation:

The expression to find the perimeter of a rectangle is 2(length + width)

Length = 1/3

Width = 1/2

Perimeter = 2( 1/3 + 1/2)

Lowest common factor = 6

Perimeter = 2 [ (2 + 3) / 6]

Perimeter = 2 [ 5/6]

Perimeter = 10/6

Perimeter = 1 4/6 = 1 2/3

5 0
3 years ago
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