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2 years ago

Eugene wants to buy jeans at a store that is giving $10 off everything. The tag on the

Mathematics

1 answer:

lorasvet [3.4K]2 years ago

6 0

Answer: a= $24.99

b= $39.98

I hope this helps

Step-by-step explanation:

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Which of the following best describes the solution to the system of equations below? -6x + y = -3 7x - y = 3

rusak2 [61]

Answer:

Step-by-step explanation:

I will give the explanation in picture, hope you can understand it.

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2 years ago

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use the elimination method to solve the system of equations choose the correct ordered pair 7x+4y=39 2y+4y=14

Anvisha [2.4K]

$x = 5 \: and \: y = 1.$

Step-by-step explanation:

$7x + 4y = 39 \: - {eq}^{n} (1)$

$2x + 4y = 14 \: \: - {eq}^{n} (2)$

Multiply Equation no (1) with 2 and Equation no (2) with 7.

$14 x + 8y = 78.$

$14x + 28y = 98.$

$( - ) \: \: \: ( - ) \: \: \: ( - )$

$0x + -20y = - 20$

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$y = \frac{ - 20}{ - 20}$

$y = 1$

Substitute the value of "y" in Equation no (1)

$7x + 4y = 39.$

$7x + 4(1) = 39.$

$7x + 4 = 39.$

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$7x = 35.$

$x = \frac{35}{7}$

$x = 5.$

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2 years ago

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Please answer the two questions on the photo

SIZIF [17.4K]

Answer:

a) 7 tiles

b)4 1/3 tiles*

Step-by-step explanation:

*you would need 5 tiles if the answer isn't supposed to be a fraction. 4 1/3 is the exact amount but if they are asking for whole tiles you need to put 5. since they didn't actually specifiy that i don't think you have to worry about it. i would go with 4 1/3 tiles

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Help for question 7 please

scoray [572]

◆ COMPLEX NUMBERS ◆

$given \: expression \: is \: - \\ \\ - 3 {i}^{4} + 2 {i}^{3} + 2 {i}^{2} + \sqrt{ - 9} \\ \\ we \: know \: that \: , \: \\ i = \sqrt{ - 1} \\ \\ {i}^{2} = - 1 \\ \\ {i}^{3 } = - i \\ \\ {i}^{4} = 1 \\ \\ \\ - 3 {i}^{4} + 2 {i}^{3} + 2 {i}^{2} + \sqrt{9} i \\ = - 3 {i}^{4} + 2 {i}^{3} + 2 {i}^{2} + 3i \\ \\ using \: the \: above \: properties \: of \: iota \: (i) \\ \\ = - 3(1) + 2( - i) + 2( - 1) + 3i \\ \\ = - 3 - 2i - 2 + 3i \\ \\ = (- 5 + i) \: \: \: ans.$

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2 years ago

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In the expression 3x2 + y -5, which of the following terms does not have a variable?

densk [106]

Answer:

A, C

Step-by-step explanation:

Only B is containing a variable .

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2 years ago