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3 years ago

Someone explain number ten thx

Mathematics

2 answers:

Leto [7]3 years ago

8 0

The length of the side is 7 because you have to multiply the length and the width together to get the area. 7x7=49

DiKsa [7]3 years ago

4 0

If you have a square with an area of49 have to find out the length of the sides on the square but do not add the sides altogether

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I need help plz answer correctly thanks

larisa86 [58]

Answer:

Not exactly sure on how to write it in though

Step-by-step explanation:

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4 years ago

if a piece of string which is 368cm long must be cut into 8 equal pieces how long will each piece be (answer in mm)

Maksim231197 [3]

1cm= 10mm
So you do 368 divided by 80 which is 4.6mm

3 0

3 years ago

Select all the ratios equivalent to 16/14 24:21 32:28 21:7

pashok25 [27]

Answer:

First and second. 24:21, 32:28

Step-by-step explanation:

Just do it. Hope I helped you!;)

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4 years ago

Read 2 more answers

If Bob paid $41.44 for 14 gallons what is the price of gas per gallon

Dmitry [639]

$2.96 you divide 41.44 by 14

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3 years ago

The length of a rectangle is the width minus 8 units. The area of the rectangle is 9 units. What is the length, in units, of the

frez [133]

Length of rectangle is 1 unit

Solution: 

Given that

Length of a rectangle is width minus 8 units.

Area of rectangle = 9 square units

Need to calculate the length of rectangle.

Let us assume width of rectangle = x

As Length is width minus 8,

Length of the rectangle = x – 8

$\text{ Area of rectangle }=\text{ width of rectangle }\times \text{ Length of the rectangle }$

$\text{ Area of rectangle }= x\times (x-8)$

$\text { Area of rectangle }=\left(x^{2}-8 x\right)$

As given that area of rectangle = 9 square units

$\begin{array}{l}{\Rightarrow x^{2}-8 x=9} \\\\ {\Rightarrow x^{2}-8 x-9=0}\end{array}$

On solving above quadratic equation for x, we get

$\begin{array}{l}{\Rightarrow x^{2}-9 x+x-9=0} \\\\ {\Rightarrow x(x-9)+1(x-9)=0} \\\\ {\Rightarrow (x-9)(x+1)=0}\end{array}$

When $x-9 =9, x = 9$

When $x + 1 = 0, x = -1$

As width cannot be negative, so considering x = 9

$\text{ Length of rectangle }= x-8 = 9-8 = 1 \text{ unit }$

Hence, Length of rectangle is 1 unit.

5 0

3 years ago