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3 years ago

What is the no solution, the one solution, and the infinitely many solution of 2x+5+2x+3x

Mathematics

1 answer:

Dima020 [189]3 years ago

3 0

Answer:

This problem shows an expression, not an equation.

It cannot be solved.

An equation needs an equal sign.

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ACEG is a paralellogram. BKD, HJF and CKJG are straight lines. Find the values of x and y

Genrish500 [490]

Answer:

$\boxed{\mathrm{x=53\° \: \: \: y=33\°}}$

Step-by-step explanation:

Apply these rules to solve:

• Angles on a straight line add up to 180 degrees.

• Angles in a triangle add up to 180 degrees.

• Opposite angles in a parallelogram are equal.

• Angles in a quadrilateral add up to 360 degrees.

7 0

3 years ago

Question 7 Please!! I am giving a crown

Nutka1998 [239]

Answer:

5:40

explanation:

The hour hand(the short hand) is on 5. The minute hand(the long hand) is on the 1 meaning 5 minutes have passed. The time on the clock says 5:05. If we add 35 minutes to that we get 5:40.

hope this helps :)

8 0

3 years ago

A boat traveled 153 miles downstream and back. The trip downstream took 9 hours. The trip back took 17 hours. What is the speed

fgiga [73]

Speed of boat in still water is 13 miles per hour and speed of current is 4 miles per hour

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

Let s = the speed of the boat in still water in miles/hour

Let c = the speed of the current in miles/hour

<em><u>Formula to remember:</u></em>

If the speed of a boat in still water is s miles/hr and the speed of the current is c miles/hr, then:

Speed downstream = (s + c) miles per hour

Speed upstream = (s - c) miles per hour

<em><u>Given:</u></em>

boat traveled 153 miles downstream and back

distance for downstream = 153 miles

distance for upstream = 153 miles

time taken for downstream = 9 hours

Time taken for upstream = 17 hours

<em><u>The relation between speed, distance and time is given as:</u></em>

$distance = speed \times time$

<em><u>For downstream:</u></em>

$153 = (s + c) \times 9$

$s + c = \frac{153}{9} = 17$

s + c = 17 ------- eqn 1

<em><u>For upstream:</u></em>

$153 = (s - c) \times 17\\\\s - c = \frac{153}{17} = 9$

s - c = 9 ------- eqn 2

<em><u>Let us solve eqn 1 and eqn 2 to find values of "s" and "c"</u></em>

Add eqn 1 and eqn 2

s + c = 17

s - c = 9

(+) -------------

2s = 26

Substitute s = 13 in eqn 1

13 + c = 17

c = 17 - 13 = 4

Thus the speed of boat in still water is 13 miles per hour and speed of current is 4 miles per hour

8 0

3 years ago

Part A: If the radius of the Earth is 3960 miles, then estimate the amount of surface area of

Bond [772]

Answer:

Surface area of Torrid Zone (cylinder shape) = 80,897,143 miles² (Approx)

Step-by-step explanation:

Given:

Radius of the Earth = 3,960 miles

Find:

Surface area of Torrid Zone (cylinder shape) = ?

Computation:

We know that, distance between two tropics is 3,250 miles.

So, Height = 3,250 miles

$Surface\ area\ of\ Torrid\ Zone=2\pi rh\\\\Surface\ area\ of\ Torrid\ Zone=2\times \frac{22}{7}\times 3,960 \times 3,250\\\\Surface\ area\ of\ Torrid\ Zone=80,897,142.9$

Surface area of Torrid Zone (cylinder shape) = 80,897,143 miles² (Approx)

3 0

4 years ago

Due in 10 minutes please help !! ASAP Erin buys 2 packs of potatoes costing £2 each, 3 packs of carrots for £3 per pack, and 3 t

lions [1.4K]

2(2) + 3(3) =

4 + 9 = 13

I don't know what 90p means but basically, u have to multiply that by 3 and add it to our current total which is 13.

Then, u substract the total cost from the 20 and you should get the change.

6 0

3 years ago