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3 years ago

Choose the four factor pairs of 42.

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

4 0

Answer:

the factors of 42 in pairs are (1, 42), (2, 21), (3, 14) and (6, 7).

Step-by-step explanation:

May I get brainelist?

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Help I need to get this done I have 15 questions

ivanzaharov [21]

Answer:

8 cm

Step-by-step explanation:

(See the image attached for details)

The blue segment measures 15 cm
The green segment measures 7 cm
The green and yellow segment when added form the blue segment
So: ? + 7 = 15

Solve:

? + 7 = 15

Subtract 7 on both sides:

? + 7 = 15

-7 -7

? = 8 cm

Therefore, the yellow segment, or the missing side length, measures 8 cm.

4 0

3 years ago

In Lucille’s class, 35% of the students have blond hair. There are 20 students in the class. How many students have blond hair.

MrRissso [65]

Answer:

7 the answer is 7

Step-by-step explanation:

1. We assume, that the number 20 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 20 is 100%, so we can write it down as 20=100%.

4. We know, that x is 35% of the output value, so we can write it down as x=35%.

5. Now we have two simple equations:

1) 20=100%

2) x=35%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

20/x=100%/35%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 35% of 20

20/x=100/35

(20/x)*x=(100/35)*x -

20=2.85714285714*x -

20/2.85714285714=x

7=x

x=7

now we have:

35% of 20=7

we multiply both sides by x

then we divide both sides by 2.85714285714 to get x

3 0

4 years ago

Read 2 more answers

A helicopter floats 120m above a helipad, a dog is 85m from the helipad, if the dog could fly, how far would it have to fly to g

suter [353]

<em>If the dog could fly, it would need to fly 147 meters to catch the helicopter</em>

This is a rather easy and straightforward question. We are going to solve it using Pythagoras theorem. We can interpret the question to be in a triangle where the height of the helicopter above the helipad and away from the dog is the right angle. This also means that the distance needed, between the dog and the helicopter is the hypotenuse.

Using pythagoras theorem, we have

120² + 85² = c²

c² = 14400 + 7225

c² = 21625

c = $\sqrt{21625}$

c = ±147 meters.

Since distance cant be in the negative, our answer is 147 m

read more about pythagoras theorem here brainly.com/question/15138986

3 0

3 years ago

Two pumps at a local water facility can only

Ratling [72]

According to the information given, the system of inequalities that models the situation is given by:

$x + y \geq 18$

$x + y \leq 24$

$120x + 200y \geq 3000$

<h3>System of inequalities:</h3>

For the system, the variables are:

x is the number of hours that Pump 1 runs.

y is the number of hours that Pump 2 runs.

They will run for at least 18 hours in a day but obviously no more than 24 hours in a day, hence:

$x + y \geq 18$

$x + y \leq 24$

Pump 1 can move 120 gallons per hour while Pump 2 can move 200 gallons per hour. In total the two pumps must move at least 3,000 gallons of water per day, hence:

$120x + 200y \geq 3000$

You can learn more about system of inequalities at brainly.com/question/14361489

8 0

3 years ago

The coach of a tennis team is holding tryouts and can take only

Natali [406]

There could be 14 different groups of 2 players.

All you have to do to find out how many different groups there could be is to multiply 7 (players) by 2 (groups).

7 x 2 = 14

Hope this helped! :D

5 0

3 years ago

Read 2 more answers