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Svet_ta [14]
4 years ago
10

Share 55 mangoes, in the ratio 4:7

Mathematics
1 answer:
Vinil7 [7]4 years ago
3 0

the answer is....

eat my ahhh oStep-by-step explanation:

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Someone help please! I'm a confoosed bab:(
Agata [3.3K]

Answer:

\huge\boxed{A_{\triangle RST}=9units^2}

Step-by-step explanation:

(Look at the picture).

Calculate the area of the rectangle and subtract the areas of red triangles.

The formula of an area of a rectangle:

A_{\boxed{\ }}=a\cdot b

We have:

a=5,\ b=4

substitute:

A_{\boxed{\ }}=5\cdot4=20

The formula of an area of a triangle:

A_\triangle=\dfrac{a\cdot h}{2}

substitute:

A_1=\dfrac{3\cdot3}{2}=\dfrac{9}{2}=4.5\\\\A_2=\dfrac{2\cdot4}{2}=\dfrac{8}{2}=4\\\\A_3=\dfrac{5\cdot1}{2}=\dfrac{5}{2}=2.5\\\\A_1+A_2+A_3=4.5+4+2.5=11

Area of ΔRST:

A_{\triangle RST}=A_{\boxed{\ }}-(A_1+A_2++A_3)

substitute:

A_{\triangle RST}=20-11=9

8 0
3 years ago
The length of a rectangular garden is 9 feet longer than its width. if the garden's perimeter is 190 feet, what is the area of t
bagirrra123 [75]
L: 52
w: 43

draw a picture and create a formula.
7 0
4 years ago
What is 72 ÷ 8 + 4y3 when y = 3?
bekas [8.4K]

Answer:

117

Step-by-step explanation:

Given

72 ÷ 8 + 4y³ with y = 3, substitute y = 3 into the expression

= 72 ÷ 8 + 4 × 3³ ← evaluate exponent

= 72 ÷ 8 + 4 × 27 ← evaluate division and multiplication

= 9 + 108 ← calculate addition

= 117

6 0
3 years ago
1 kg of sand has a volume of 400 cm*. What is its densityin g/cm*.<br> ( * is cubed)
Alexandra [31]
Given mass=1 kg, volume=400cm³, density=?
The formula for finding density is ρ=m/v where ρ is density, m is volume and vis volume
ρ=1kg/400cm³
ρ=0.0025kg/cm³
Therefore the density of the sand is 0.0025kg/cm³
6 0
3 years ago
plz i need help Find the perimeter and area of each shape. If you use a formula write it down. Show me your work. 1.) An 8ft by
trasher [3.6K]
1) perimeter = 36 ft

explanation:

p=2l+2w
p=2(8)+2(10)
p=16+20
p=36

area = 80 ft^2

explanation

a=l*w
a=8 ft* 10 ft
a=80 ft^2

2) perimeter = 28

explanation:

p=2l+2w
p=2(7)+2(7)
p=14+14
p=28

area = 49 in^2

explanation:

a=l*w
a=7in*7in
a=49 in^2

6 0
3 years ago
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