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3 years ago

Find the value of x.

Mathematics

2 answers:

galina1969 [7]3 years ago

6 0

Answer:

its 90 bro whenever you see that square on a corner its always 90 degrees

Step-by-step explanation:

Elanso [62]3 years ago

3 0

Answer:

The answer is 90 degrees.

Whenever you see a square in the corner, it means it's 90 degrees.

It's also red, meaning that that is what you're trying to find.

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A jogger runs 6 miles per hour faster downhill than uphill. If the jogger can run 5 miles downhill in the same time that it take

muminat

Answer:

The speed of jogger in uphills is 4 mile per hour

And The speed of jogger in downhills is 10 mile per hour

Step-by-step explanation:

Given as :

The distance cover by jogger in downhill (Dd) = 5 miles

The distance cover by jogger in uphill (Du) = 2 miles

The time taken by jogger in downhill (Td) = T hour

The time taken by jogger in uphill (Tu) = T hour

Let The speed of jogger in uphills (Su) = x mph

So ,The speed of jogger in downhills (Sd) =( x + 6 ) mph

∵, Time = $\frac{Distance}{Speed}$

So, Tu = $\frac{Du}{Su}$

Or, T = $\frac{2}{x}$ h

And Td = $\frac{Dd}{Sd}$

Or, T = $\frac{5}{(x + 6)}$ h

∵ Time duration of both is same

∴ $\frac{2}{x}$ = $\frac{5}{(x + 6)}$

Or, 2 × (x + 6) = 5x

Or, 2x + 12 = 5x

So, 12 = 3x

∴ x = $\frac{12}{3}$ = 4 mph

And x + 6 = 4 + 6 = 10 mph

Hence The speed of jogger in uphills is 4 mile per hour

And The speed of jogger in downhills is 10 mile per hour Answer

5 0

3 years ago

A bridge on a river is modeled by the equation h = -0.2d^2 + 2.25d, where h is the height and d is the horizontal distance. For

4vir4ik [10]

Hello,
A=(2.21082279...,3.996803798)
$\left \{ {{h=-0.2d^2+2.25d} \atop {h=d/6+21.77/6}} \right. \\\\

\Rightarrow\ 1.2d^2-12.5d+21.77=0\\\\

\Rightarrow\ d=2.21082279..\ or\ d=8.20584..\\\\

$

8 0

2 years ago

Read 2 more answers

Solve 7x - 4 = 5x + 15 for x.

Law Incorporation [45]

7x-4=5x+15
-5x on both sides
2x-4=15
add four to both sides
2x=19
divide both sides by 2 to isolate x
x=9.5

8 0

3 years ago

Lamar has 1,354.5 kilograms of potatoes to deliver equally to 18 stores. 12 of the stores are in the Bronx. How many kilograms o

Helen [10]

Answer:

deliver in 12 stores in the Bronx = 903 kg

Step-by-step explanation:

given data

potatoes weight = 1354.5 kg

no of store = 18

store in Bronx = 12

to find out

How many kilograms of potatoes will be delivered to stores in the Bronx

solution

first we find the 1 store potatoes deliver weight that is

1 store deliver = $\frac{total weight}{total store}$ ............1

put here value in equation 1

1 store deliver = $\frac{1354.5}{18}$

1 store deliver = 75.25 kg

deliver in 12 stores in the Bronx are

deliver in 12 stores in the Bronx = weight of 1 store deliver × 12

deliver in 12 stores in the Bronx = 75.25 × 12

deliver in 12 stores in the Bronx = 903 kg

4 0

3 years ago

Which one is it please help me

olya-2409 [2.1K]

Answer:

option A

Step-by-step explanation:

All the three angles are equal..

so it's AA similarity

5 0

3 years ago