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Kitty [74]
3 years ago
7

OER type of question.

Mathematics
1 answer:
Vlad1618 [11]3 years ago
5 0

Answer:

x=-3, y=-19

Step-by-step explanation:

we can solve by substitution.

y = 2x-1 we can derive from the second equation.

plugging it into the first equation, 2x -3(2x-1) = 15.

simplying, 2x-6x+3 = 15 --> -4x+3 = 15, -4x = 12, x = -3.

now we know x, so we can solve for y by plugging it into one of the equations. --> -3*-6+y = -1

simplify, 18+y = -1 --> y = -19.

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Find the value of x ?
RUDIKE [14]

Answer:

x = 50

Step-by-step explanation:

add all terms and set sum equal to 360

the 'hint' of (n-2)180 determines how many degrees there are inside the polygon; if 'n' equals the number of sides and the polygon has 4 sides then sum of interior angles is (4-2)180 or 2x180 which is 360

x + 10 + 3x + x + 2x = 360

combine like terms to get:  7x + 10 = 360

                                             7x = 350

                                              x = 50

6 0
3 years ago
Sandy has 6 sheets of colored paper. She uses 4 sheets to make posters. She cute the remaining paper into equal rectangles to ma
katrin [286]
Sandy have to make 8 cards
7 0
3 years ago
Ishaan and his friends have 40$ to spend at a restaurant.
Paul [167]

The number of salads Ishaan and his friends can afford is 6 salads.

<h3>What are Word Problems?</h3>

Word Problems in mathematics involve crucial understanding and the use of variables and arithmetic operations to solve real-life cases.

From the given information;

  • The total amount with Ishaan and his friends = $40
  • If they decided to spend the money on salad(x) and one salad(x) cost = $6

Thus, the number of salads they can purchase is:

\mathbf{x = \dfrac{\$40}{\$6}}

x = 6 salads remaining $4

Therefore, we can conclude that the number of salads they can purchase with $40 is 6 salads with a remaining amount of $4.

Learn more about word problems here:

brainly.com/question/21405634

3 0
2 years ago
Please help me ergent ):
Temka [501]
What do you need help with

6 0
3 years ago
Convert 0.04 to a fraction in lowest terms. *
klasskru [66]

Answer:

1/25

Step-by-step explanation:

0.04 = 4/100 = 1/25

8 0
3 years ago
Read 2 more answers
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