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earnstyle [38]
3 years ago
15

An equilateral triangle has sides of length 15 cm, correct to the nearest centimetre.

Mathematics
1 answer:
g100num [7]3 years ago
5 0

Answer:

15.5 cm

Step-by-step explanation:

Since it's corrected to the nearest centimeter, the place value of the units place is 1.

1/2 = 0.5

Upper bound = 15 + 0.5 = 15.5 cm

Hope this helps!

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please hurry and I will give you brainlest if you are correct Twice the sum of a number and 11 is 34 What is the number? Enter y
babymother [125]

Answer:  6

Step-by-step explanation:

Just translate it. I'll call the number "x":

2(x + 11) = 34

x + 11 = 17

x = \boxed6

3 0
3 years ago
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Math help please help thanks
ser-zykov [4K]

Answer:

62

Step-by-step explanation:

Draw a line from the bottom of the 4 foot line straight across (horizontally) until it hits the vertical line on your left.

The two lines (the one you drew and the left vertical line) meet at right angles.

The upper figure is a rectangle.

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The comment was correct.

5 0
3 years ago
What is the value of x in the equation 1/3x -2/3= -18
barxatty [35]
1/3x - 2/3 = -18
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8 0
3 years ago
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The length of a rectangle is five inches less than twice it’s width. If the rectangle has a perimeter of 80 inches, find the len
yawa3891 [41]

Answer:

Width of the rectangle  = 15 inches

Length of the rectangle  = 25 inches

Step-by-step explanation:

Let the width of the rectangle =  k inches

So, the length of the rectangle =   (2k -5) inches

Perimeter = 80 in

Perimeter of a rectangle = 2 (Length + Width)

⇒  80 = 2(k + (2k -5)

or 80 = 6k - 10

⇒ 6k = 80 + 10 = 90

or  k = 90 / 6

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So the width of the rectangle  = k  = 15 inches

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5 0
3 years ago
Algebraic expression for the sum of a number and 8
Sladkaya [172]

Answer:

n + 8

Step-by-step explanation:

<u>Step 1:  Convert words into an expression</u>

The sum of a number and 8

n + 8

Answer: n + 8

6 0
3 years ago
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