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alexandr402 [8]
3 years ago
15

Jenna manipulated the equation 4x + 7=10 by adding -7 to both sides.Which of the follolwing properties justifies this manipulati

on? ​
Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
5 0
The addition property of equality justifies this. You could also say that she simply subtracted 7, and then it would be the subtraction property of equality. This is the case because if you add or subtract (or multiply or divide) the same number on both sides of an equation, the equation will still be the same.


Hope it helps!
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Given a coin and a number cube which list gives the possible results?
tatiyna

Answer:

Flipping three coins: Each coin has 2 equally likely outcomes, so the sample space is 2 • 2 • 2 or 8 equally likely outcomes. Rolling a six-sided die and flipping a coin: The sample space is 6 • 2 or 12 equally likely outcomes.

...

First coin Second coin outcome

H T HT

T H TH

T T TT

Step-by-step explanation:

sorry if its wrong mate

3 0
3 years ago
A taxi service charges an initial $15 fee, plus $3 per mile driven. A. Write an equation to represent the situation. B. How much
Paraphin [41]
A. Let x represent the number of miles and y represent the total price.

y=3x+15

B. Using the equation we just wrote, replace the x with 45.

y=3(45)+15


Now multiply 45 by 3.

y=135+15


And finally add together 135 and 15.

y=150

The total cost of a 45 mile taxi ride would be $150.00.
4 0
3 years ago
Read 2 more answers
16/9 Write as a decimal. If necessary, use a bar to indicate which digit or group of digits repeats. ​
Alenkinab [10]

Answer:

1.7777 (use the bar on top of 7)

Step-by-step explanation:

top in bottom out

16 goes into 9 one times

4 0
3 years ago
(a) 3n – 11 > 5n – 18
Bad White [126]

Answer:

Step-by-step explanation:

Bringing like terms on one side

-11 + 18 > 5n - 3n

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7 0
3 years ago
A computer program selects blue,red,green as the background color each time the program is used.The program was used 45 times on
forsale [732]

Answer:

Option b.

Step-by-step explanation:

Consider the below figure attached with this question.

A computer program selects blue,red,green as the background color each time the program is used.

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Red background = 21 times

Green background = (45-12-21) times = 12 times

Blue background = Green background

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Green is just as likely as blue to appear, but not as likely as red.

Therefore, the correct option is b.

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3 years ago
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