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3 years ago

Please help me asap!!

Mathematics

2 answers:

grigory [225]3 years ago

7 0

Answer:

Step-by-step explanation:

easy

pickupchik [31]3 years ago

3 0

Your answer should be 27

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Marcus baked a loaf of banana bread for a party. He cut the loaf into equal size pieces.how can you find the number of pieces in

Oliga [24]

If he cut the loaf into equal pieces, then told you 1/3 was left you could check the even multiples of three. Such as six. So he could have 2 pieces left of his loaf if he cut them into six pieces because 1/3 = 2/6

7 0

3 years ago

Evaluate 6n-2 for n=4.

kvasek [131]

Answer:

6n-2 = 22

Step-by-step explanation:

n = 4

6(4)-2

24-2

4 0

3 years ago

An airplane travels 6111 kilometers against the wind in 9 hours and 7911 kilometers with the wind in the same amount of time. Wh

natima [27]

Answer:

Speed of the plane in still air: $779\; {\rm km \cdot h^{-1}}$ .

Windspeed: $100\; {\rm km \cdot h^{-1}}$ .

Step-by-step explanation:

Assume that $x\; {\rm km \cdot h^{-1}}$ is the speed of the plane in still air, and that $y\; {\rm km \cdot h^{-1}}$ is the speed of the wind.

When the plane is travelling against wind, the ground speed of this plane (speed of the plane relative to the ground) would be $(x - y)\; {\rm km \cdot h^{-1}}$ .
When this plane is travelling in the same direction as the wind, the ground speed of this plane would be $(x + y)\; {\rm km \cdot h^{-1}}$ .

The question states that when going against the wind ( $v = (x - y)\; {\rm km \cdot h^{-1}}$ ,) the plane travels $6111\; {\rm km}$ in $9\; {\rm h}$ . Hence, $9\, (x - y) = 6111$ .

Similarly, since the plane travels $7911\; {\rm km}$ in $9\; {\rm h}$ when travelling in the same direction as the wind ( $v = (x + y)\; {\rm km \cdot h^{-1}}$ ,) $9\, (x + y) = 7911$ .

Add the two equations to eliminate $y$ . Subtract the second equation from the first to eliminate $x$ . Solve this system of equations for $x$ and $y$ : $x = 779$ and $y = 100$ .

Hence, the speed of this plane in still air would be $779\; {\rm km \cdot h^{-1}}$ , whereas the speed of the wind would be $100\; {\rm km \cdot h^{-1}}$ .

3 0

2 years ago

7.539•3.0642<br>estamate <br>also 19.801•2.78 <br>HELP

Fynjy0 [20]

So i believe you need to round the whole number, if so than 8 * 3 = 24 and 20 * 3 = 60

3 0

3 years ago

A bag contains 26 tiles, each with a different letter of the alphabet written on it. You choose 3 tiles from the bag without loo

blagie [28]

Answer:

1/26

Step-by-step explanation:

Total no. of tiles = 26

In each tile , a different alphabet is written.

And we need 3 tiles (in which A , B & C are written in it) in one try.

So the probability of choosing tiles with letters A , B & C ( in one try ) = 1/26

4 0

3 years ago