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Umnica [9.8K]
3 years ago
11

X=7 -2x+10 What does this equal?

Mathematics
2 answers:
adoni [48]3 years ago
8 0
-2(7)=-14+10=-4
-4 is ur answer hoped this helped
mote1985 [20]3 years ago
6 0

Step-by-step explanation:

Since X is given to you (in this case, it’s 7), all you have to do is plug it into the equation.

1. -2(7) + 10

When a variable or a number is directly outside a number, it means you should multiply the two numbers, no matter what.

Now that we know this: -2 * 7 = (-14) When a negative is multiplied by a positive, it turns out negative.

2. (-14) + 10: Let’s say (for instance), that I owe 14 dollars to a friend. If I pay 10 of it, how much do I owe my friend? It would be -4 because you’re still in debt, and haven’t payed your friend all of her 14 dollars back.

3. You should come up with an answer of (-4) because of all of the steps given.

If something doesn’t make sense, please make a note of it and tell me. Otherwise, have a splendid day.

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94 passengers rode in a train from City A to City B. Tickets for regular coach seats cost ​115$. Tickets for sleeper cars seats
Kisachek [45]

Using a system of equations, it is found that 41 regular and 53 sleeper seat tickets were sold.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are:

  • Variable x: Regular coach seats.
  • Variable y: Sleeper cars seats.

94 passengers rode in a train from City A to City B, hence:

x + y = 94

Tickets for regular coach seats cost ​115$. Tickets for sleeper cars seats cost ​281$. The receipts for the trip totaled 19,608​$, hence:

115x + 281y = 19608

From the first equation, x = 94 - y, hence, replacing on the second.

115x + 281y = 19608

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y = \frac{8798}{166}

y = 53

x = 94 - y = 94 - 53 = 41

Hence, 41 regular and 53 sleeper seat tickets were sold.

To learn more about system of equations, you can take a look at brainly.com/question/14183076

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Ed wants to show 137 429 with placevalue blocks. he has enough hundreds and ones blocks but only 4 tens blocks. can he show the
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