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3 years ago

Y = x + 7 and y = -x + 2

Mathematics

1 answer:

larisa [96]3 years ago

7 0

Answer:

y = x + 7

y = (-x) + 2

X + 7 = (-x) + 2

X + X = 2 - 7

2x = (-5)

Putting the value of X in equation

Y = (-5/2) + 7

Y = (-5)/2 + 7/1

Equalising the denominator by Taking LCM

Y = (-5)/2 +14/2

Y = ( -5 +14)/2

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A. What is the circumference of the

erik [133]

Answer:

a) 94.2 cm

b) 78.5%

Step-by-step explanation:

a) since the square side = 30 cm

it means the diameter = 30 cm

then circumference of the largest circle that can be cut = 3.14×30 = 94.2 cm

b) the perimeter of the square = 30×4 = 120

94.2 for 120

x% for 100%

x = (100×94.2)/120 = 9420/120 = 942/12 = 78.5%

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3 years ago

Steve and Chris are working together to weed a garden plot. Steve weeded of the plot. Chris weeded of the plot.

Radda [10]

I'm pretty sure its A.

7 0

3 years ago

Read 2 more answers

Somebody please help me :)

aleksandrvk [35]

Answer:

(5,7.5) (12,18) (18,27)

Step-by-step explanation:

It costs $1.50 per cupcake.

y = 1.5x, where x is the amount of cupcakes and y is the amount of money in dollars.

7.5 = 1.5 times 5

18 = 1.5 times 12

27 = 1.5 times 18

6 0

3 years ago

1/4(1-2/3)^2+1/3 Simplify

MrMuchimi

Simplifying the expression gives 13/ 36

<h3>How to solve the expression</h3>

Given;

1/4(1-2/3)^2+1/3

Represented as;

$\frac{1}{4} * ( 1 - \frac{2}3} )^2 + \frac{1}{3}$

Take the LCM of the bracket

$\frac{1}{4} * ( \frac{1}{3} )^2 + \frac{1}{3}$

Find the square

$\frac{1}{4} (\frac{1}{9} )+ \frac{1}{3}$

Find the LCM

$\frac{1}{36} + \frac{1}{3}$

1 + 12/36

13/ 36

Thus, simplifying the expression gives 13/ 36

Learn more about fractions here:

brainly.com/question/1622425

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6 0

1 year ago

Read 2 more answers

1. At a fundraiser dinner, the bill for 4 cups of coffee

babymother [125]

<u><em>1- Writing the system of equations:</em></u>

The price of a cup of coffee is denoted by c while the price of a spaghetti is denoted by s

<u>We are given that:</u>

4 cups of coffee and 6 spaghetti cost $20.5

<u>This means that:</u>

4c + 6s = 20.5 ................> equation 1

<u>We are also given that:</u>

1 cup of coffee and 3 spaghetti cost $8.75

<u>This means that:</u>

c + 3s = 8.75 .................> equation 2

<em><u>2- Solving the equations using substitution methods:</u></em>

<u>From equation 2:</u>

c = 8.75 - 3s ................> I

<u>Substitute with I in equation 1 and solve for s as follows:</u>

4c + 6s = 20.5

4(8.75 - 3s) + 6s = 20.5

35 - 12s + 6s = 20.5

35 - 6s = 20.5

6s = 14.5

s = $2.41667

<u>Substitute with s in I to get c:</u>

c = 8.75 - 3s

c = 8.75 - 3(2.41667) = 1.4999 = $1.5

<u><em>3- getting price for 1 cup of coffee and 1 spaghetti:</em></u>

c + s = 1.5 + 2.41667 = $3.91667

Hope this helps :)

3 0

3 years ago