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timofeeve [1]
2 years ago
9

Write an equation and solve:

Mathematics
1 answer:
MA_775_DIABLO [31]2 years ago
3 0

Answer:

55p

Step-by-step explanation:

iced cake = 10p more than a plain cake

iced cake = 10p + plain cake

iced cake and a plain cake together = £1

iced cake + plain cake = £1

if iced cake = 10p + plain cake, we can plug this into our second formula to get

(10p + plain cake) + plain cake = £1

10p + 2 * plain cake = £1 = 100p

subtract 10p from both sides to isolate the variable and its coefficient

2 * plain cake = 90p

divide both sides by 2 to isolate the variable

plain cake = 45p

iced cake = 10p + plain cake = 55p

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If 2/3 X ? = 1 what number goes in the box
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Answer:1/3?

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2 years ago
Alex drew the triangles shown. Which of the following correctly describes the triangles? 2 triangles are shown. Each triangle ha
evablogger [386]

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This is because it says "Each triangle has <u>1 obtuse angle</u> and 2 acute angles" in the instructions. An obtuse angle is any angle between 90 and 180 degrees, excluding both endpoints.

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3 years ago
What is the distance between (-2,2) and (2,-1) on coordinate plane
lawyer [7]

Answer:

d=\sqrt(x2-x1)^{2}  + (y2-y1)^{2}

Step-by-step explanation:

1- Identify the x and  the y

x1= -2

x2=2

y1= 2

y2= -1

2-

2- solve the equation:

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6 0
3 years ago
The sum of all the interior angles in a triangle is blank degrees. Please HELP
ozzi

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180º

Step-by-step explanation:

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3 0
2 years ago
Read 2 more answers
Find the value of x and y. Show all your work neat and<br> in order.
Mazyrski [523]

Answer:

x = 21°

y = 29°

Step-by-step explanation:

a) Solving for x

Note that:

(3x - 3)° and 60° are Alternate interior angles, and alternate interior angles are equal to each other, hence:

3x - 3 = 60° (Alternate interior angles)

Add 3 to both sides

3x - 3 +3 = 60 + 3

3x = 63°

x = 63°/3

x = 21°

b) Solving for y

Notes that:

(3x - 3)° and (4y + 4)° are Consecutive interior angles and the sum consecutive interior angles is 180°

3x - 3 + 4y + 4 = 180°

3x + 4y - 3 + 4 = 180°

3x + 4y + 1 = 180°

Note that x = 21

Hence

3(21) + 4y + 1 = 180°

63 + 1 + 4y = 180°

64 + 4y = 180°

Subtract 64 from both sides

64 - 64 + 4y = 180° - 64

4y = 116°

y = 116/4

y => 29°

8 0
2 years ago
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