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2 years ago

Problem

Mathematics

1 answer:

igor_vitrenko [27]2 years ago

6 0

Answer:

Their weekly sales would have to be $10,000 before they can be earning the same amount for the week

Step-by-step explanation:

If they are to be earning the same thing each week, it means whatever Toni is earning is what Nicky would be earning.

We proceed by equating their earnings so we would get x;

800 + 0.07x = 600 + 0.09x

Collect like terms

800-600 = 0.09x -0.07x

200 = 0.02x

x = 200/0.02

x = 10,000

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1. The diagonal of a quadrilateral

zalisa [80]

Consider the length of diagonal is 8.5 cm instead of 8.5 m because length of perpendiculars are in cm.

Given:

Length of the diagonal of a quadrilateral = 8.5 cm

Lengths of the perpendiculars dropped on it from the remaining opposite vertices are 3.5 cm and 4.5 cm.

To find:

The area of the quadrilateral.

Solution:

Diagonal divides the quadrilateral in 2 triangles. If diagonal is the base of both triangles then the lengths of the perpendiculars dropped on it from the remaining opposite vertices are heights of those triangles.

According to the question,

Triangle 1 : Base = 8.5 cm and Height = 3.5 cm

Triangle 2 : Base = 8.5 cm and Height = 4.5 cm

Area of a triangle is

$Area=\dfrac{1}{2}\times base \times height$

Using this formula, we get

$Area(\Delta 1)=\dfrac{1}{2}\times 8.5\times 3.5$

$Area(\Delta 1)=14.875$

and

$Area(\Delta 2)=\dfrac{1}{2}\times 8.5\times 4.5$

$Area(\Delta 2)=19.125$

Now, area of the quadrilateral is

$Area=Area(\Delta 1)+Area(\Delta 2)$

$Area=14.875+19.125$

$Area=34$

Therefore, the area of the quadrilateral is 34 cm².

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2 years ago

Chris put $1,500 in a savings account at an annual interest rate of 5%. If Chris does not deposit or withdraw any money, what is

Anon25 [30]

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2 years ago

A sporting goods store ordered new bikes and scooters.

laila [671]

Okie. i get it. you guys must like sports a lot

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2 years ago

Jace has two number cubes the red cube has the following numbers on the faces 1,1,2,2,5,6 the blue number cube has the following

Lerok [7]

Answer: Jace is true

Step-by-step explanation:

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2 years ago

Read 2 more answers

ALGEBRA! NEED HELP!

grigory [225]

The base's length is 8 and it's width is 7, so it's perimeter will be $2\cdot (7+8)=30$ . To find the lateral area you shoul multiply this with it's height. So, $30\cdot h=150\\ h=\frac { 150 }{ 30 } \\ h=5$ (h is height).

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2 years ago