3 years ago

Is (5,15) a solution of the equation y=3x?

Mathematics

2 answers:

LenKa [72]3 years ago

8 0

yes because if you put 5 instead of x, y will be 15.

kolezko [41]3 years ago

4 0

yes cause u basicly saying 15=5times3

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Solve for x in simplest form. 14 = 1/3(8x + 6)

elena-s [515]

Answer:

x = 4.5

Step-by-step explanation:

14 = 8/3x + 2

12 = 8/3x

36 = 8x

x = 4.5

5 0

3 years ago

rick deposited $6200 in a savings account with simple interest. three years later, the account held $7130 what was the interest

Law Incorporation [45]

1) Gathering the data

P=$6200

F=7310

t= 3 yrs

2) Since it is a simple interest, it is a linear application. So we can find it using this formula:

$undefined$

8 0

1 year ago

Plss help i beg you!

frosja888 [35]

Answer:

Step-by-step explanation:

Given expression:

3(x + y) +2x² + (1 + y)²

Find its value when x = 4 and y = 1, substitute:

3(4 + 1) + 2*4² + (1 + 1)² =
3*5 + 2*16 + 2² =
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51

7 0

2 years ago

If a/b = 4/3 and b/c = 2/3, what is a,b, and c?

kaheart [24]

Answer:

Step-by-step explanation:

$\frac{a}{b} = \frac{4}{3}$

$\frac{b}{c} = \frac{2}{3}$

to give b from both equation the same value

$\frac{a}{b} = \frac{4}{3} \times \frac{2}{2} = \frac{8}{6}$

$\frac{b}{c} = \frac{2}{3} \times \frac{3}{3} = \frac{6}{9}$

a:b:c = 8:6:9

a = 8

b = 6

c = 9

7 0

3 years ago

he temperature at noon on a winter day was 2 °F. By 6 p.m., the temperature had dropped to −9 °F. Write a subtraction expression

nydimaria [60]

Based on the starting temperature and the new temperature, the relevant expression would be 2 - (-9)

To find the number of degrees the temperature has changed by, use the following equation:

= Starting temperature - Current temperature

Starting temperature = 2°F

Current temperature = -9°F

The equation becomes:

= 2 - (-9)

In conclusion, the expression would be 2 - (-9)

Find out more on expressions at brainly.com/question/945593.

5 0

2 years ago