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irina1246 [14]
2 years ago
7

What is the area of triangle ABC if the height is 4 yards and the base is 15 yards

Mathematics
2 answers:
Ivanshal [37]2 years ago
8 0

Answer:

The answer is 30yd²

Step-by-step explanation:

A=hb b/2

=4·15/2

=30yd²

irakobra [83]2 years ago
5 0

Answer:

30 square yards

Step-by-step explanation:

You can calculate the area of a triangle by using the formula: A = \frac{1}{2}bh, where b=base, and h=height, and since you have both values you can easily calculate the area by plugging the values in

Plug Values Into Equation:

A = \frac{1}{2}(15)(4)

Multiply 15 and 4

A=\frac{1}{2}(60)

Multiply by 1/2 (or technically divide by 2)

A = 30

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Step-by-step explanation:

a =45°

b=45°

c=30°

d=30°

e=30°

f=30°

total of the angle

90×4=360

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3 years ago
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Answer a, b and c. See image below
dlinn [17]

Answer:

a) 3/5 < 4/5

b) In general if two fractions have the same denominator, then whichever fraction has the numerator closer to its denominator will be the largest fraction.

c)  \frac{7}{10} > \frac{9}{15}  <em>or</em>  \frac{7}{10}

Step-by-step explanation:

a) 3/5 < 4/5

Flip the sign and the placement of the fraction so 3/5 is less then 4/5.

b) In general if two fractions have the same denominator, then whichever fraction has the numerator closer to its denominator will be the largest fraction.

c) We need to change the denominators to a common denominator to compare the size of the two fractions:

\frac{7}{10} × \frac{3}{3} = \frac{21}{30}

\frac{9}{15} ×  \frac{2}{2} = \frac{18}{30}

The common denominators of the two fractions is 30. Comparing the two fractions:

\frac{21}{30} >\frac{18}{30}  <em>or</em>  \frac{18}{30}

so we get:  \frac{7}{10} > \frac{9}{15}  <em>or</em>  \frac{7}{10}

7 0
3 years ago
Eight times a number is the same as 30 less than 5 times the number. Find the number?
Charra [1.4K]

Answer:

x = -10

Step-by-step explanation:

We just have to translate the problem correctly

>8 times a number is the same

this tells me that

8x = ...

>as 30 less than 5 times the number.

... = 5x - 30

Now set them equal to eachother

8x = 5x - 30

Now isolate the variable x

8x - 5x = 5x - 5x - 30\\3x = -30\\x = \frac{-30}{3} = -10

6 0
3 years ago
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A rectangle is 12m longer than it is wide. Its perimeter is 68m. Write and equation and show steps to find its length and width.
Galina-37 [17]

Answer:

  length: 23 m; width: 11 m.

Step-by-step explanation:

The perimeter of a rectangle is twice the sum of its length and width, so that sum is 34 m. Then you can write two equations in length and width:

  l + w = 34

  l - w = 12

Adding these together gives you ...

  2l = 46

  l = 23 . . . . . . divide by 2

Then the width is

  w = 23 -12 = 11

The length and width are 23 m and 11 m, respectively.

4 0
3 years ago
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