2 years ago

2. 3x + 2y = 22 5x – 2y = 42

Mathematics

2 answers:

hammer [34]2 years ago

6 0

Step-by-step explanation:

3x+2y=22

5x-2y=42

by adding both equation

8x. =64

x=64/8=8

substituting x in the 1st equation

we get,

3*8+2y=22

24+2y=22

2y=22-24

y=-2/2=-1

therefore,

x=8

y=-1

STALIN [3.7K]2 years ago

5 0

X is 8 and y is -1 that is the answer hope this helps

You might be interested in

If there are 25 students in a class and 13 are girls, what is the ratio of boys to girls? Is the relationship, part to part, par

Alexeev081 [22]

12 to 13 is the ratio.

3 0

3 years ago

Is 64 inches is greater less than are equal to 5 feet

True [87]

64 inches is greater than 5 feet.

Hope I helped! <3

6 0

3 years ago

Read 2 more answers

A committee of 4 people is randomly selected from a group of 5 Republicans and 6 Democrats. What is the probability that the com

IgorLugansk [536]

We have 5 Republican Candidates and 6 Democratic Candidates

We have a total 11 candidates to choose from

First pick of Democratic Candidates = 6/11
Second pick of Democratic Candidates = 5/10
Third pick of Democratic Candidates = 4/9
Fourth pick of Democratic Candidates = 3/8

The probability of four Democratic candidates in the committee is
$\frac{6}{11}$ × $\frac{5}{10}$ × $\frac{4}{9}$ × $\frac{3}{8}$ = $\frac{360}{7920} = \frac{1}{22}$

4 0

3 years ago

How do I study for a big math test? any tips on how to study I'm a visual learner.

Nastasia [14]

Honestly? Just review your notes and try to work out the problems yourself before taking a look at the answer. You can also google specific topics that the test will cover and try the practice problems.

3 0

2 years ago

Read 2 more answers

The area of the postcard is 24 square inches. What is the width b of the message (in inches)?

MAXImum [283]

Area of rectangular post card = length x width
For the given post card:
length = 4 in
width = (3+b) in
area = 24 in^2

So, substituting in the equation of the area:
24 = 4 x (3+b)
24 = 12 + 4b
24 - 12 = 4b
12 = 4b
b = 3 in

Therefore:
the length of the postcard = 4 inch
the width of the postcard = b+3 = 3 + 3 = 6 inch

4 0

3 years ago