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Leviafan [203]
4 years ago
7

A half marathon is 13.1 miles long. Leah is running a half marathon and has completed 7.75 miles. How many miles to

Mathematics
2 answers:
lubasha [3.4K]4 years ago
5 0

Answer:

5.35 miles to the finish line

Step-by-step explanation:

Step one

13.1-7.75=

5.35

Radda [10]4 years ago
3 0

Answer:

5.35 more miles

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the height of a triangle is 9m less than its base. the area of the triangle is 56 m^2 find the length of the base (SHOW STEPS)
Veronika [31]
Hey there :)

We know the area formula of a triangle
\frac{1}{2} (base)(height)

We are given:
The area = 56 m²
The base = let p represent this
The height = 9 m less than the base = p - 9

Apply the formula
56 = \frac{1}{2} × ( p ) × ( p - 9 )
56 = \frac{1}{2} × ( p² - 9p )

Divide \frac{1}{2} on both sides
56 ÷ \frac{1}{2} = p² - 9p
112 = p² - 9p

Bring 112 to the other side and equate equation to 0
p² - 9p - 112

Factorise { Sum = -9 , Product = - 112 , therefore suitable factors = - 16 × 7 )
( p - 16 )( p + 7 ) = 0
     ↓          ↓
 p = 16    p = - 7  ←  Reject p = - 7 since length cannot be negative

So, the length  of the base is 16 m

Check:
56 m² = \frac{1}{2} × 16 × ( 16 - 9 )
56 m² = 8 × 7
56 m² = 56 m²
7 0
3 years ago
If 168 chocolate chips weigh 5 1 4 ounces. How many chocolate chips are in an ounce?
saw5 [17]

Answer:

if 168 chocolate chips weighs 514 ounces then you would divide

514/168=3.220238095

so round to the nearest tenth and get 3.2

you get that there are 3.2 chocolate chips are in one ounce

Step-by-step explanation:

hope this helps and plz give brainiest

6 0
4 years ago
FIRST GETS BRAINLIEST
Dominik [7]

Answer:

Step-by-step explanation:

Class tickets she brought was 109 and coach tickets was 24

6 0
3 years ago
what is the aprproximate length of the arc formed by a 90 angle on a circle that has a radious of 70 feet
AleksandrR [38]
That depends on the position of the angle, if it's a central angle then the length of arc = 1/4 the circumference

so L = (1/4)(2pi(70))= 110 feet approximately 
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8 0
3 years ago
How can you decompose the composite figure to determine its area
Nataly_w [17]

Answer:

4 as a trapezoid, a rectangle, and two squares

Step-by-step explanation:

The diagram below is a composite figure .To determine it area the composite figure can be decomposed into various shapes.

The shapes it can be decomposed are a trapezoid , a rectangle and 2 squares.

The top side of the composite figure forms a trapezoid . A trapezoid is a quadrilateral with one pair of parallel sides. It is also known as trapezium.

The shape below the trapezoid can be cut into a rectangle .A rectangle is a quadrilateral with opposite sides equal in length and are also parallel.

The two shapes formed below the rectangle are squares. Squares are quadrilaterals with all sides equal in length and opposite sides are parallel.  

4 0
4 years ago
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