4 years ago

Given the equation 4x+5y=20

Mathematics

1 answer:

tester [92]4 years ago

4 0

I hope this helps you

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mr.wilson saved 2,500 to buy airlines tickets he bought airline tickets for $372 each how much savings does mr.wilson after he b

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2,500 subtracted by 372 equals 2148. 2148 dollars is how much savings he has left.

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4 years ago

Read 2 more answers

Help me please! These are due today.

IrinaVladis [17]

Answer:

${x}^{2} + 3x$

Step-by-step explanation:

Area of shaded region = Area of external rectangle - Area of internal rectangle

$= 4x(x + 2) - x(3x + 5) \\ = 4 {x}^{2} + 8x - 3 {x}^{2} - 5x \\ = 4 {x}^{2} - 3 {x}^{2} + 8x - 5x \\ = {x}^{2} + 3x \\$

Let the width of the rectangle be x inches.

Therefore, length of the rectangle = (x + 3) inches

Area of rectangle

$=(x + 3)\times x\\=x^2 + 3x\\$

Width of rectangle = 4 inches

Length of rectangle = 4 + 3 = 7 inches

Area of rectangle = 7*4 = 28 square inches.

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3 years ago

Which is a solution to the equation a number divided by 7 is at least 4? 26, 27, 28, 29

Nastasia [14]

Answer:

28 and 29

Step-by-step explanation:

the equation is x÷7≤4

26÷7= 3.7 ≠ x÷7≤4

27÷7= 3.8 ≠ x÷7≤4

28÷7=4

29÷7= 4.14=x÷7≤4

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2 years ago

Can someone help me with this

Kitty [74]

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3 years ago

What is the conjugate 2x^2 + square root of 3

finlep [7]

Answer:2x^2-√(3)

Step-by-step explanation:

Sign change in the conjugate

Therefore we have 2x^2-√(3)

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4 years ago