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Naya [18.7K]
3 years ago
9

Translate three more than half a number is 15 into an equatio?

Mathematics
1 answer:
torisob [31]3 years ago
8 0

Answer:

1/2n+3=15

Step-by-step explanation:

the 1/2 is a fraction so 3 more than 1/2 times n is 1/2n+3=15

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What is the solution of y= -5x + 1 and y= 3x - 2
Nezavi [6.7K]

Answer:

x=3/8, y=-7/8. (3/8, -7/8).

Step-by-step explanation:

y=-5x+1

y=3x-2

----------

-5x+1=3x-2

-5x-3x+1=-2

-8x+1=-2

-8x=-2-1

-8x=-3

8x=3

x=3/8

y=3(3/8)-2=9/8-2=9/8-16/8=-7/8

8 0
3 years ago
Simplify the expression using the order of operations. 3 (8-4)2 + 7.9
OlgaM077 [116]

Answer:31.9

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Can someone tell me the answer for this please?
Tom [10]
4x+1+57=90
4x+58=90
4x=32
X=8
4 0
3 years ago
In parallelogram JKLM, m<L exceeds m<M by 30 degrees. What is the measure of M<J?
Damm [24]

 

Answer:

2)105°

Step-by-step explanation:

In this parallelogram, J should be congruent to L (J=L). We can solve this problem if we find out the value of L.

The sum of the adjacent angle of the parallelogram will be equal to 180 degrees, so  the equation is

L + M = 180

M=180- L

If L exceeds M by 30 degrees then the equation will be

L=M +30  

If you combine both equations, it will be

L+30 = M +30

L+30 = (180- L) +30

L + L= 180 + 30

2L= 210

L=105

3 0
3 years ago
if you place a 5ft ladder against the top of a 4ft building how many feet will the bottom of the ladder be from the bottom of th
nika2105 [10]

Answer:

3 ft.

Step-by-step explanation:

When you imagine the sentence, it is a right angled triangle. In this case, it's a Pythagoras Theorem. The formula for it is:

a²(opposite) + b²(adjacent) = c²(hypotenuse)

The building is the opposite, the distance between the foot of the ladder and the building is the adjacent, while the ladder is the hypotenuse.

We have the measurements except for the adjacent. So it will be:

c² - a² = b²

5² - 4² = b²

25 - 16 = b²

9 = b²

√9 = b

b = 3 ft

The answer is 3 ft.

5 0
3 years ago
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