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natima [27]
3 years ago
8

Use substitution to solve the linear system of equations.

Mathematics
1 answer:
goblinko [34]3 years ago
6 0

Answer:

(4, - 2 )

Step-by-step explanation:

Given the 2 equations

x = 4 → (1)

- y = \frac{1}{2} x → (2)

Substitute x = 4 into (2)

- y = \frac{1}{2} × 4 = 2 ( multiply both sides by - 1 )

y = - 2

Solution = (4, - 2 )

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Naomi and Josiah work at a furniture store. Naomi is paid $190 per week plus 5.5% of her total sales in dollars, x x, which can
Ivanshal [37]

Answer:

x = $11400

Step-by-step explanation:

Naomi is paid $190 per week plus 5.5% of her total sales in dollars, x, which can be represented by g ( x ) = 190 + 0.055 x.

And Josiah is paid $475 per week plus 3% of his total sales in dollars, x, which can be represented by f ( x ) = 475 + 0.03 x

Let the weekly pat for them are equal.

Then, g(x) = f(x)

⇒ 190 + 0.055 x = 475 + 0.03 x

⇒ 0.025 x = 285

⇒ x = $11400

Therefore, for the value of x = $11400, that will make their weekly pay the same. (Answer)

8 0
3 years ago
What is 8/9 - 1/3? I can’t seem to figure out the answer
vredina [299]

Answer:

Answer:

have a common denominator first,

9

8/9 - 3/9 = 5/9

1/3 x 3/3 = 3/9

5 0
3 years ago
Select the statement that is true about squares from the choices below.
Leya [2.2K]
The answer is (C). All sides and angles of the square is equal. Its diagonals bisect each other and meet at 90°. If two lines are said to meet at 90°, these lines are perpendicular to each other. Therefore, the diagonals of a square is perpendicular to each other
7 0
4 years ago
A tourist group arrived at the boat dock for a boat ride in the morning. There were 252 people in the group. Another tourist gro
4vir4ik [10]
Its 15 boats bcuz...252+288=540 and 540/36= 15 boats :D
5 0
3 years ago
Help..... please math
marusya05 [52]

Answer:

Ones: 91

Hundredths: 91.20

Step-by-step explanation:

All numbers that comprises the digits, 91.20, have place value.

The 9 in the digit has a place value of tens, i.e. 9*10 = 90.

The 1 has a place value of one's, i.e. 1*1 = 1

The 2, after the decimal point to the right, has a place value of tenth, i.e. 1*10-¹ = ⅒ = 0.1

While the zero has a place value of hundredth.

Therefore, the digits, in the ones place = 91

In the hundredths place = 91.20

6 0
4 years ago
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