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Shtirlitz [24]
3 years ago
9

Randy bought 30 marbles. 40% of them are blue. How many blue marbles are there

Mathematics
2 answers:
-BARSIC- [3]3 years ago
7 0

Answer:

12 Blue Marbles

Step-by-step explanation:

30 times 0.40 is 12.

Salsk061 [2.6K]3 years ago
6 0

Answer:14

Step-by-step explanation:if it was 50% it would've been 15

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maks197457 [2]
3v-9v is -6v
-6v=30 Divide each side by -6
v=-5
To check: substitute -5 back into the equation wherever you see v
3(-5)-9(-5)=30
-15+45=30
30=30

4 0
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My question is this can you help me​
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Step-by-step explanation:

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Step-by-step explanation:

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8 0
4 years ago
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A pair of pants that regularly sells for $80 is on sale for 25% off. What is the sale price of the pair of pants?
Ipatiy [6.2K]

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3 0
3 years ago
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NEED HELP ASAP HELP ME
Roman55 [17]

Answer:

The answer to your question is: x = -7

Step-by-step explanation:

Data

                       y - x = 9

                      10 + 2x = -2y

1.- Change the form of the equations

       

                   - x + y   = 9                   ---- (1)

                   2x + 2y = -10                ---- (2)

Solve equation by elimination

Multiply (1) by 2

                 - 2x + 2y =  18

                   2x  + 2y = -10

                    0     4y = 8

                             y = 8/4

                             y = 2

Find the value of x (in equation 1)

                   - x + 2 = 9

                  - x = 9 - 2

                  - x = 7

                    x = -7

6 0
4 years ago
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