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4 years ago

15-5y=20 what is the value of y?

Mathematics

2 answers:

Natasha_Volkova [10]4 years ago

6 0

Answer:

15-5y=20

15-20=5y

-5=5y

y=-1

AnnZ [28]4 years ago

6 0

Answer:

Step-by-step explanation:

$swap \: - 5y \: and \: 15$

working step:

$15+−5y=20 \\ −5y+15=20 \\ −5y+15−15=20−15 \\ −5y=5 \\ −5y−5=5−5 \\ y=−1$

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Is y =3/4x +2 And -6x+8y=16 parallel or coincident

Rudiy27

Answer:

parallel

Step-by-step explanation:

y=3/4x+2

Multiply the equation by 8:

8y=6x+16

(8y-6x)=16

and you can clearly see that they're same

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3 years ago

For which interval is the function constant?

andreev551 [17]

Answer:

Option D (2, 6)

Step-by-step explanation:

As shown in the graph function has four intervals on which graph is plotted.

1). From the graph we can see in the interval -10 ≤ x ≤ 0 graph is increasing.

2). From 0 ≤ x ≤ 2 function is decreasing.

3). Between 2 ≤ x ≤ 6 function is constant.

4). And for x ≥ 6 function is increasing.

Therefore interval in which the function is constant is (2, 6).

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4 years ago

Points A(–3, –2) and C(4, 5) are the endpoints of a diagonal of a square. Give the coordinates of the other two vertices.

blagie [28]

Answer:

B(4,-2) D(-3,5)

Step-by-step explanation:

you must graph the points and project the lines in X and Y until they intersect and form a square

I attached an image

6 0

4 years ago

….."………….."……how do u do dis?

raketka [301]

Answer:

x = -25

Step-by-step explanation:

$3 - \frac{x}{5} = 8$

$5(3 - \frac{x}{5} ) = 5 \times 8$

$5 \times 3 - 5 \times \frac{x}{5} = 5 \times 8$

$15 - 5 \times \frac{x}{5} = 40$

$15 - x = 40$

$- x = 40 - 15$

$- x = 25$

$x = - 25$

3 0

3 years ago

Read 2 more answers

A school surveys 100 students to find out their favorite football team. Seventy - one of the students said the Dallas Cowboys.

almond37 [142]

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3 years ago