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makvit [3.9K]
3 years ago
8

Simplify 8x + y - 2x.

Mathematics
2 answers:
Inga [223]3 years ago
6 0
The answer is ; 6x+y
iren2701 [21]3 years ago
3 0

Answer:

6x + y

Step-by-step explanation:

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How do I find the value of y?
Arisa [49]

Answer:

The answer is that y = 3

Step-by-step explanation:

In order to find y, you must first find x. You can do that by noting the two angles next to each other create a straight line and therefore are equal to 180 degrees.

(4x + 23) + (9x - 38) = 180

13x - 15 = 180

13x = 195

x = 15

Now that we have the value of x, we can use the alternating interior angle theorem to tell that 27y - 1 is equal to 4x + 23. Using our value for x, we can solve for y.

27y - 1 = 4x + 23

27y - 1 = 4(15) + 23

27y - 1 = 60 + 23

27y - 1 = 83

27y = 84

y = 3

4 0
2 years ago
Ursula and Velda live 4 km apart. They leave their homes at the same time, walking towards each other. If Ursula walks at a rate
vladimir2022 [97]

Answer: 250 m

Step-by-step explanation:

Given

Distance between Ursula and Velda house is 4 km or 4000 m

Ursula walks at the rate of 400\ m/h\ or\ \frac{20}{3}\ m/min

Velda walks at the rate of 600\ m/h\ or\ 10\ m/min

Time taken by them to cover 4000 m is

\Rightarrow \dfrac{4000}{400+600}=4\ h\ or\ 240\ min

Distance covered by them 15 min before they meet

Ursula =\frac{20}{3}\times 225=1500\ m

Velda =10\times 225=2250\ m

The total length covered by them is =1500+2250=3750\ m

They are 4000-3750=250\ m apart before they meet

6 0
2 years ago
If the point (1, 5) lies on a circle whose center is at the origin, what is the equation of the circle?
makkiz [27]
In this case just change the variables by the numbers. (1,5)
x=1 y=5
1^2 + 5^2 = 26
1+25=26
26=26 *this one is the answer...
TRUE

x2 + y2 = 16
1^2 + 5^2=16
1+25=16
26=16
False

x2 + y2 = 13
1^2 + 5^2=13
1+25=13
26=13
False

x2 + y2 = 11
1^2 + 5^2=11
1+25=11
26=11
False

So we can say that the first one is the answer.
3 0
3 years ago
Find the slope of the line that passes through (2,5) and (8,-4)
Lemur [1.5K]

Slope formula: (y² - y¹) / (x² - x¹)

(2, 5) and (8, -4)

x¹ = 2

x² = 8

y¹ = 5

y² = -4

-4 - 5 = -9

8 - 2 = 6

Answer: -9/6

Hope this Helps!!

4 0
3 years ago
Read 2 more answers
An airplane 30,000 feet above the ground begins descending at a rate of 2,000 feet per minute. Write an equation to model the si
Dmitrij [34]

Answer:

7

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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