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1 year ago

Evaluate the following for the given values. 7xy - y + x - 1 for x = -2 and y = -1

Mathematics

1 answer:

BigorU [14]1 year ago

8 0

Heyo! ;D

After evaluating the given expression, the result would be 14 - x.

Hope this helped you! If so, please lmk! Tysm and good luck!

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Abigail has 16 apples she eats 2 apples per day.let y be the apples remaining as a function of the number of week,x

Greeley [361]

Answer:

Let X be the number of weeks.

2x - 16 = 14

we add 16 on both sides.

2x = 30

now we divide 2 on both sides to get rid of the 2 to the x, we want to get x on its own.

X = 15

3 0

3 years ago

21 less than tree-fifths of a number

Oxana [17]

(3/5)x - 21

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6 0

2 years ago

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ella [17]

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3 years ago

Toucans and blue-and-yellow macaws are both tropical birds. The length of the toucan in the picture to the right is about two t

Sergeu [11.5K]

Answer:

The length of the blue-and-yellow macaw is 42 in

Step-by-step explanation:

Let

x ----> the length of the toucan in inches

y ----> the length of the blue-and-yellow macaw in inches

we know that

$x=\frac{2}{3}y$ ----> equation A

$x=28$ ----> equation B

substitute equation B in equation A and solve for y

$28=\frac{2}{3}y$

Multiply by 3 both sides to remove the fraction

$28(3)=2y$

Divide by 2 both sides

$y=\frac{28(3)}{2}=42\ in$

therefore

The length of the blue-and-yellow macaw is 42 in

3 0

3 years ago

Z= 3 - 2x + 4(z - 8) when z = 18

wlad13 [49]

Answer:

25/2

Step-by-step explanation:

Let's solve your equation step-by-step.

18=3−2x+4(18−8)

Step 1: Simplify both sides of the equation.

18=3−2x+4(18−8)

18=3+−2x+40

18=(−2x)+(3+40)(Combine Like Terms)

18=−2x+43

Step 2: Flip the equation.

−2x+43=18

Step 3: Subtract 43 from both sides.

−2x+43−43=18−43

−2x=−25

Step 4: Divide both sides by -2.

−2x

−2

−25

−2

Answer:

8 0

3 years ago

Read 2 more answers