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gizmo_the_mogwai [7]
3 years ago
15

B devided by 7=4 what does b equal

Mathematics
2 answers:
Setler79 [48]3 years ago
5 0

Answer:

28

Step-by-step explanation:

you just have to do the inverse of division and the inverse basically means opposite so that means you should multiply

instead of b÷7 =4

you should isolate the variable and do

b= 7×4

b= 28

arlik [135]3 years ago
3 0

Answer:

28

Step-by-step explanation:

b/7=4

do the opposite opperation

4*7= 28

b=28

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lenghts of the sides of a rectangular garden are in a ratio 1:2. Line connecting the centers of the adjacent sides of the garden
allsm [11]

Answer:

perimeter = 107.4 m

area =  640.82 m²

Step-by-step explanation:

The line connecting the the centers of the adjacent sides of the garden is 20 m long. The line is a diagonal that forms an hypotenuse sides of a triangle.

The length of side of the rectangle has a ratio of 1 : 2. This means one side has a length a meters and the other 2a meters.

Pythagoras theorem can be use to get a since a right angle is formed due to the diagonal.

(a/2)² + (2a/2)² = 20²

(a/2)² + (a)² = 20²

a²/4 + a² = 400

(a² + 4a²)/4 = 400

5a²/4 = 400

cross multiply

5a² = 1600

a² = 1600/5

a² = 320

square root both sides

a = √320

a = 17.88854382

a ≈ 17.90  

The required length is a = 17.90 m and the other side will be 17.90 × 2 = 35.80 m.

Area = length × breadth

area = 17.90 × 35.80 = 640.82 m²

perimeter = 2(l + b)

perimeter = 2(35.80 + 17.90)

perimeter = 2(53.7)

perimeter = 107.4 m

8 0
4 years ago
Suppose f(x) = x2 - 5. Find the graph of
FinnZ [79.3K]

Answer:

I think its 4 because the y intercept should be at -5 and it looks like oits going t a slope of 2. SO i think 4 is correct

Step-by-step explanation:

4 0
3 years ago
Please subscribe to my channel. It is called Kevin's World. IF YOU SUB I WILL GIVE BRAINILIEST. Send me a screenshot that you ha
mixer [17]

Answer:

i will suscribe to your channel if you pick me as the brainliest

Step-by-step explanation:

thanks

6 0
3 years ago
Read 2 more answers
Four ninths minus four tenths equals blank ?
melisa1 [442]

Answer:

\frac{4}{90}

5 0
3 years ago
Read 2 more answers
2 points
miskamm [114]

The x - intercept of 5x - 3y = 15 is (3, 0)

The y -intercept of 5x - 3y = 15 is (0, -5)

<h3><u>Solution:</u></h3>

Given equation is 5x - 3y = 15

<em><u>To find: x - intercept and y -intercept</u></em>

The x intercept is the point where the line crosses the x axis. At this point y = 0

The y intercept is the point where the line crosses the y axis. At this point x = 0.

<em><u>Finding x - intercept:</u></em>

To find the x intercept using the equation of the line, plug in 0 for the y variable and solve for x

So put y = 0 in given equation

5x - 3(0) = 15

5x = 15

x = 3

So the x - intercept is (3, 0)

<em><u>Finding y - intercept:</u></em>

To find the y intercept using the equation of the line, plug in 0 for the x variable and solve for y

So put x = 0 in given equation

5(0) - 3y = 15

-3y = 15

y = -5

So the y - intercept is (0, -5)

5 0
3 years ago
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