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kolezko [41]
2 years ago
13

Do 4x and 15 + x have the same value when x is 5? How do you know?

Mathematics
2 answers:
elena55 [62]2 years ago
8 0

Yes

Step-by-step explanation:

x = 5

4(5) = 15 + (5)

20 = 20

alexandr402 [8]2 years ago
4 0

Answer:

yes

Step-by-step explanation:

If x = 5,

4x=4*5=20

15+x=15+5=20

They're both the same.

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This question made me stuck lol.. I really need help
Svetach [21]
(4,5)(2,1)
slope = (1 - 5) / (2 - 4) = -4/-2 = 2

(-2,3)(-4,4)
slope = (4 - 3) / (-4 - (-2) = 1/(-4 + 2) = -1/2

2 and -1/2 are negative reciprocals of each other....therefore, ur lines are perpendicular <==


5 0
3 years ago
Dylan started with 30 baseball cards and gave away x cards. Sebastian started with 40 cards and gave away twice as many cards as
andre [41]

Answer:

he gave away 5 because if sebastian gave twice as many away and ended up with the same as dylan then it must be 5

4 0
2 years ago
Read 2 more answers
Use the number line to solve (-1)-(-2)=
Alex787 [66]

Answer:

-1 is the answer , your welcome haha

4 0
2 years ago
Find the area of the figure.
Otrada [13]

Answer:

20 square units

Step-by-step explanation:

The figure shows a triangle whose;

  • Base AC is 8 units
  • Height is 5 units

We are supposed to get its area;

Area of a triangle is given by the formula;

Area = 0.5×b×h

Thus;

Area = 0.5 × 8 units × 5 units

        = 20 square units

Hence, the area of the figure is 20 square units

8 0
3 years ago
I have 50 to spend at beach. A kayak cost 5 per hour to rent. I buy lunch for 8.50. I want to save 15 for food later. How many h
Gekata [30.6K]

Answer: you can rent the kayak for 5.3 hours

Step-by-step explanation:

Total amount of money that you have to spend at the beach is 50.

A kayak cost 5 per hour to rent. This means that if you rent the Kayak for X hours, the amount that you will spend would be 5×x = 5x. I buy lunch for 8.50. I want to save 15 for food later. This means that total amount of money spent is the sum of money spent in renting the kayak and buying of lunch.

Total amount spent = 5x + 8.50

Total amount spent + Total amount that you want to save = Total amount of money that you have to spend at the beach. Therefore

5x + 8.50 + 15 = 50 - 15 - 8.5 = 26.5

x = 26.5/5 = 5.3

8 0
3 years ago
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