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lord [1]
2 years ago
5

You have 400 cards stored 3/5 of them are from family. 1/4 of them are from friends. The rest you made. How many cards did you m

ake?
Mathematics
1 answer:
omeli [17]2 years ago
5 0
You made 3/20 of the 400 cards, which is 60 cards.
You might be interested in
I relly need help please please please
madam [21]

Answer:

I think answer is

5.X+11

7 0
3 years ago
1. Solve and verify each of the following systems of linear equations.
kakasveta [241]
5x - 2y = -6 ⇒ 10x - 4y = -12
2x - 1y =  1 ⇒ <u>10x - 5y =    5</u>
                                  y = -17
                   5x - 2(-17) = -6
                       5x + 34 = -6
                       <u>      - 34 - 34</u>
                               <u>5x</u> = <u>-40</u>
                                5       5
                                 x = -8
                           (x, y) = (-8, -17)

2x + 3y = 432 ⇒ 10x + 15y = 2160
5x + 2y =   16 ⇒ <u>10x +   4y =     32</u>
                                     <u>11y</u> = <u>2128</u>
                                      11       11
                                         y = 193.4545455
          2x + 3(193.4545455) = 432
              2x + 580.3636364 = 432
              <u>     - 580.3636364  - 580.3636364</u>
                                       <u>2x</u> = <u>-148.3636364</u>
                                        2                2
                                         x = -74.1818182
                                   (x, y) = (-74.1818184, 193.4545455)
6 0
3 years ago
Read 2 more answers
What is the value of this expression when a = 4, b= -5, and c= -7?<br> a + 2bc<br> 3a ?
sladkih [1.3K]

Answer:

1) -66

2)

Step-by-step explanation:

Given:

a=4

b=-5

c=-7

=a+2bc

=4+2*-5*7

=4+(-10*7)

=4-70

=-66

=3a

=3(4)

=12

Hope this helps ;) ❤❤❤

7 0
3 years ago
Read 2 more answers
How can we find the measure of an exterior angle if we know the measurement of an interior angle
Alik [6]

Step-by-step explanation:

Put the interior angle equal to 180.


It would look something like this:

x+45=180

-45     -45

180-45= 135 so the exterior angle would be 135!

3 0
2 years ago
Tell me how do you find out how many Calendar days are in 7 standard years
larisa86 [58]
2556.6975 days

Your answer would be
7 0
3 years ago
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