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Ymorist [56]
4 years ago
11

One Step Equations, need help with this one: x+3=7 Thanks

Mathematics
1 answer:
zimovet [89]4 years ago
6 0

Answer:

4

Step-by-step explanation:

We subtract 3 from both sides to get rid of x and when we do so we get x = 7 - 3 = 4.

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When 7 is subtracted from five times a number, the result is greater than twice the sum of the number and 4. Find all the number
hichkok12 [17]

Given :

When 7 is subtracted from five times a number, the result is greater than twice the sum of the number and 4.

To Find :

All the numbers that satisfy the inequality.

Solution :

Let , the number is x .

Mathematical expression for first term is :

5x - 7

Mathematical expression for second term is :

2(x + 4)

Now , comparing both the expression by given constrain.

5x - 7 > 2(x + 4)\\\\5x-7>2x+8\\\\3x>15\\\\x>5

So, all the numbers that satisfy the inequality are greater than 5.

Hence , this is the required solution.

3 0
4 years ago
Amal drives her car for work.
SashulF [63]

Answer:

£7,878

Step-by-step explanation:

she gets:

40p× 260 miles = 10,400p

she pays:

52 : 5.36= £9.70 per mile

260 x 9.70 = £2,522

to find out what she claimes more than she pays: 10,400 - 2,522 = 7,878

8 0
3 years ago
Help with this question please!!
SCORPION-xisa [38]

Answer:

it is C i hope this helps

Step-by-step explanation:

6 0
3 years ago
recall the equation for a circle with center (h,k) and radius r At what point in the first quadrant does the line with equation
Angelina_Jolie [31]

9514 1404 393

Answer:

  ≈ (3.578, 5.789)

Step-by-step explanation:

We can substitute for y and solve for x.

  (x -h)^2 +(y -k)^2 = r^2 . . . equation of a circle with center (h, k), radius r

  x^2 +(y -4)^2 = 4^2 . . . . . . the equation of the given circle

  x^2 +((0.5x +4) -4)^2 = 16

  (5/4)x^2 = 16

  x = 8/5√5 . . . . multiply by 4/5 and take the square root

  y = 0.5x +4

  y = 4/5√5 +4

The point of intersection is (8/5√5, 4+4/5√5), approximately (3.578, 5.789).

6 0
3 years ago
I need help on this math problem
kakasveta [241]

Answer:

y= −1/2x + 3/4

Step-by-step explanation:

Write in slope-intercept form, y=mx +b.

Problem: 6x+12y=9

Hopefully this helps you!

Still stuck? Get 1-on-1 help from an expert tutor now.

4 0
2 years ago
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