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3 years ago

Can someone please help me

Mathematics

1 answer:

Mrrafil [7]3 years ago

5 0

Answer:

y=3

Step-by-step explanation:

7y-(5y+4)=10

7y-5y+4=10

-4 -4

7y-5y=6

2y=6

÷2 ÷2

y=3

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Plzz help me im giving 12 points

Serggg [28]

This Is very simple.

30m + 50 = 20m + 100

This is the new equation needed to solve for m.
first we must isolate "m".

30m + 50 = 20m + 100
- 50 - 50

30m = 20m + 50
-20m -20m

10m = 50

divide both sides by 10 to isolate "m".

m = 5

hope this helps!

3 0

3 years ago

What is SIN A?

Bond [772]

Answer:

$\sin A =\frac{4}{5}$

Step-by-step explanation:

Recall the mnemonics SOH CAH TOA.

SOH means the Sine ratio is Opposite over Hypotenuse.

This implies that;

$\sin A =\frac{Opposite}{Hypotenuse}$

The side opposite to angle A is 4cm and the hypotenuse is 5cm.

$\therefore \sin A =\frac{4}{5}$

6 0

2 years ago

The sum of two numbers is 85. If four times the smaller number is subtracted from the larger number, the result is 5. Find the t

Cerrena [4.2K]

Answer:

the larger number is 69

the smaller number is 16

Step-by-step explanation:

x is the smaller number

y is the larger number

x + y = 85

y - 4x = 5

y = 5 + 4x

x + 5 + 4x = 85

5x = 80

x = 16

y = 69

5 0

2 years ago

Y + 2 =3 (x-6) <br>find the slope and a point on the line

Alex777 [14]

Answer:

slope = 3, point = (6, -2)

Step-by-step explanation:

This is in point-slope form which looks like this : y-y1 = m(x-x1).

m is the slope, an x1 and y1 are the x and y coordinates of the point. Remember to flip the sign of the numbers for the points i.e. the y+2 in the equation becomes -2 for the point.

5 0

2 years ago

In a board game, students draw a number do not replace it, and then draw a second number. Determine the probability of each even

murzikaleks [220]

The figure depicting the board game is attached below.

Answer:

Step-by-step explanation:

Kindly note that selections done without replacement.

Count of numbers on the board game = 8

Count of odd numbers = (1, 9, 1) = 3

Count of digit 6 = 3

Probability = required outcome / Total possible outcomes

P(picking an odd number) = 3 / 8

Without replacement

Numbers left on board game = 8 - 1 = 7

P(picking a 6) = 3 / 7

Hence,

P(picking an odd number then, a 6) = 3/8 * 3/7 = 9 / 56

7 0

2 years ago