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3 years ago

13

Please Help :

1 answer:

anyanavicka [17]3 years ago

8 0

the answer is 30 because Shamika sold twice as much balloons as Crystal which is 60. 30+60=90 then Aliya sold 2 more balloons than Crystal which 32+90=122

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Charmaine, Ravi, and Deon sent a total of 107 text messages over their call phones during the weekend. Ravi sent 7 more messages

galina1969 [7]

Number of messages sent by Charmaine=x=12

Number of text messages sent by Ravi = x+7 = 12+7 = 19

Number of text messages sent by Deon = 4(x+7) = 19*4 = 76

Step-by-step explanation:

Let

x be the number of messages Charmaine sent

Then

Ravi sent 7 more messages than Charmaine = x+7

Deon sent 4 times as many messages as Ravi = 4(x+7)

In total they sent 107 messages

So,

$x+(x+7)+4(x+7)=107\\x+x+7+4x+28=107\\6x+35=107\\Subtracting\ 35\ from\ both\ sides\\6x+35-35=107-35\\6x=72\\Dividing\ both\ sides\ by\ 6\\\frac{6x}{6}=\frac{72}{6}\\x=12$

Number of messages sent by Charmaine=x=12

Number of text messages sent by Ravi = x+7 = 12+7 = 19

Number of text messages sent by Deon = 4(x+7) = 19*4 = 76

Keywords: Linear equations in one variable

Learn more about linear equations at:

#LearnwithBrainly

8 0

3 years ago

Find five solutions for the linear equations 2x+y=5, and plot the solutions as points on a coordinate plane. Did i do this right

beks73 [17]

For the second row i think it should be 2 + y = 5 because 2 x 1 equals 2

7 0

3 years ago

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Please help I'm in hurry

nordsb [41]

Answer:

its twenty five

Step-by-step explanation:

25

4 0

3 years ago

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What value of y satisfies the system of equations below?<br> 2x - y = 6<br> 2x + 3y = 14

Oksana_A [137]

Answer: y=2

Step-by-step explanation:

2x+3y=14 - 2x-y=6 = 4y=8

y=2

If you need x, just insert y into the equation and work out x from there

2x-2=6

2x=8

x=4

5 0

2 years ago

Evaluate 5|x^3 - 2| + 7 when x = -2

Dafna1 [17]

Answer:

57

Step-by-step explanation:

5 |-2^3 - 2| + 7

-2^3 = -8

-8 - 2 = -10

absolute value of -10 = 10

5 * 10 = 50

50 + 7 = 57

7 0

3 years ago

Read 2 more answers