All categories

2 years ago

{x = -4y - 19

Mathematics

2 answers:

o-na [289]2 years ago

8 0

Answer:

x = 9

y = -7

Step-by-step explanation:

x = -4y - 19

2x + 2y = 4

2(-4y - 19) + 2y = 4

-8y - 38 +2y =4

-6y = 4 + 38

-6y=42

y= -7

x = -4(-7) -19

x = 9

Harman [31]2 years ago

3 0

Answer:

x = 9 and y = -7

Step-by-step explanation:

given:

x = -4y - 19
2x + 2y = 4

using substitution method:

2(-4y - 19) + 2y = 4

-8y - 38 + 2y = 4

-6y = 42

y = -7

Solve for x:

x = -4(-7) - 19

x = 28 - 19

x = 9

You might be interested in

A local concert promoter purchases 2 3/4 pages of ads. When one of the concerts is cancelled, the promoter cancels 1 5/8 pages o

Lynna [10]

Answer:

1 $\frac{1}{8}$ pages

Step-by-step explanation:

Since the concert promoter started with 2 $\frac{3}{4}$ pages of ads but had to cancel 1 $\frac{5}{8}$ , subtracting the cancelled amount from the original amount will give the amount of advertising space the promoter is now actually using:

2 $\frac{3}{4}$ = 2 $\frac{6}{8}$

- 1 $\frac{5}{8}$ - 1 $\frac{5}{8}$

1 $\frac{1}{8}$ pages

In order to subtract fractions, you need to have like denominators, so you need to convert $\frac{3}{4}$ into an equivalent fraction with a denominator of '8'. Since 4 x 2 = 8, then you also need to multiply the numerator by the same factor: 3 x 2 = 6.

5 0

2 years ago

What is the solution to the equation below?

MakcuM [25]

Answer:

X=4

Step-by-step explanation:

The solution is in the file

5 0

2 years ago

Read 2 more answers

A)231*12 531*23 505*11 402*44 b) 516*25 893*72 860*91 c) 413*25 120*518 119*98 7*00*125 d) 7800*8600 980*37000 1860*890 5800*470

Allushta [10]

Answer:

mega mind<3<3<3<<3<3?3<3<

5 0

2 years ago

Could I get some help here I literally have the iq of a 2nd grader

ahrayia [7]

Answer:

x = 16

Step-by-step explanation:

Supplementary angles = 180

K + L = 180

137 + 3x - 5 = 180

132 + 3x = 180

3x = 180 - 132

3x = 48

x = 48/3

x = 16

8 0

3 years ago

Express 5% as a decimal

IRINA_888 [86]

Answer:

.05

Step-by-step explanation:

you divide 5 by 100 which makes it .05

6 0

2 years ago