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lakkis [162]
1 year ago
10

If 3t -7 = 5t, then 6t =

Mathematics
2 answers:
USPshnik [31]1 year ago
5 0

Answer:

21

Step-by-step explanation:

3t-7=5t

subtract 3t from both sides

-7 = 2t

multiply both sides by 3

-21 = 6t

so 6t = -21

Alex_Xolod [135]1 year ago
4 0
Its 21 because you put the variables on one side and then divide to find the value of t
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What is the length of AB?
makkiz [27]
The radius of the circle is given to be r = 14.5

Let the center be O. So OB is the radius = 14.5

We can draw a triangle as shown in the image below. We have a right angled triangle. We know the hypotenuse and the base, we need to find the perpendicular side. This can be done using the Pythagorean theorem.

So, we can write:

(14.5)^{2}=10^{2}+OA^{2} \\  \\ 
OA^{2}=110.25 \\  \\ 
OA=10.5

Thus, the measure of OA = 10.5

OB = OA + AB

14.5 = 10.5 + AB
⇒
AB = 4
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2 years ago
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Help how do I solve this
musickatia [10]
How do i solve 6x-12=36

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3 years ago
What is 7,5444+789=?
lisov135 [29]

Answer:

76233

Step-by-step explanation:

Add the numbers together:

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3 0
3 years ago
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A hotel charges $90 per day for a double room $80 per day for a single room. If a total of 80 single and double rooms are occupi
SashulF [63]

Answer:

the number of single room is 27 and the number of double room  is 53

Step-by-step explanation:

Let x is the number of single room

Let y is the number of double room

We know that:

x + y = 80 <=> x = 80 -y (1)

80x +90y= 6930 (2)

Substitute (1) in (2) we have:

80 (80 - y) + 90y = 6930

<=> 6400 - 80y +90y = 6930

<=> y = 53

> x = 80 - 53 = 27

the number of single room is 27 and the number of double room  is 53

4 0
2 years ago
One number is eight more than twice another. If their difference is 25, what is the larger number?
Vladimir79 [104]
You can set up an system of equations
x=2y+8
x-y=25

Substitute x in to the second equation
2y+8-y=25
y+8=25
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Substitute the y back in to the first equation.
x=2(17)+8=42
7 0
3 years ago
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