All categories

3 years ago

Help i give brainliest

Mathematics

2 answers:

IceJOKER [234]3 years ago

3 0

Answer:

y = 11-x

y = 2x-1

Step-by-step explanation:

Let x and y be the two numbers

x+y = 11

y = 2x-1

Solving the first equation for y

y = 11-x

alex41 [277]3 years ago

3 0

Answer:

Im their friend so i'ma just take the pts (cuz i need them)

Step-by-step explanation:

Thx

You might be interested in

the following scatter plot demonstrates that there is a positive correlation between the two quantities.

dlinn [17]

I think the answer is true.

6 0

4 years ago

2/7+2/5=answernin simplest form

MrRa [10]

Answer:24/34

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

The basketball coach spent $35 on 5 t shirts for his team last season. This season, he needs to purchase 7 t shirts. If he pays

vazorg [7]

Answer:

5 dollars

Step-by-step explanation:

last year he got 5 they were 7 dollars because 7x5 is 35 so do the same thing to do other it also equals 35

8 0

3 years ago

Read 2 more answers

graham spent a total of 7.25 on 8 oranges and a packet os strawberries if a packet of strawberries cost 2.85 how much did each o

JulsSmile [24]

$7.25-$2.85= $4.40
$4.40/8= $0.55
Each orange costs $0.55

6 0

4 years ago

OBC is a sector of a circle with centre o and radius 9cm work out the area of the shaded region as a percentage of the area of s

NARA [144]

Answer:

83.7 %

Step-by-step explanation:

To get the area of the shaded region, we will following these steps.

Step one: Get the area of the sector of the circle.

The area of the sector of the circle can be obtained using the formula:

$Area = \frac{\theta}{360}\times \pi r^{2}$

Theta will be 60 degrees because triangle OAD is an equilateral triangle

Hence, $Area = \frac{60}{360}\times \pi \times 9^{2}= 42.42cm^{2}$

Step Two: Get the area of the equilateral triangle

The area of the equilateral triangle can be got using the formula

$Area = \frac{1}{2} Base \times Height$

The height of the triangle can be got by drawing an imaginary line bisecting the triangle into two parts and applying the Pythagoras' theorem to any of the resulting right-angled triangles formed.

This will be $height =\sqrt{4^{2}-2^{2}} =3.46cm$

Thus $Area = \frac{1}{2}\times 4\times 3.46=6.93cm^{2}$

Step Three: Subtract the area of the triangle from the area of the sector

Area of the shaded portion = $42.42cm^{2}-6.93cm^{2}=35.49cm^{2}$

Step Four: Divide the area of the shaded portion by the area of the entire shape and multiply the result by 100:

Expressing the ratio of the two areas as a percentage, we have

$\frac{35.49}{42.42} \times 100\approx 83.7 %$ %

7 0

3 years ago