MATHEMATICS COLLEGE

Explain why Six less than three times a number is 21. Find the number.

Answers

Answer 1

Answer:

Answer: 9

Step-by-step explanation: The reason that students get intimidated

by word problems is they try to look at all the information at once.

The best way to approach a word problem

is to break it down sentence by sentence.

In this problem, let's look at the first part of the sentence.

We know that six less than three times a number is 21.

Let's call the number x.

So we know that six less than three times a number means 3x - 6.

A common mistake would be for students to put 6 - 3x.

However, the word "less than" switches the order around.

So we know that six less than three times a number is 21.

So we can write this as 3x - 6 = 21.

Now we have an equation and we can solve for x.

First add 6 to both sides to get 3x = 27.

Now divide both sides by 3 to get x = 9.

So our answer to this word problem is 9.

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Line p is parallel to line q. Parallel lines p and q are crossed by lines a and b to form 2 triangles. At parallel line p, angle 4 is formed by line b and angle 5 is formed by line a. Angle 6 is the third angle. At parallel line q, angle 3 is formed by line 3 and angle 2 is formed by line b. Angle 1 is the third angle. Which set of statements about the angles is true? Angle 1 is congruent to angle 6, angle 5 is congruent to angle 4, angle 3 is congruent to angle 2 Angle 2 is congruent to angle 4, angle 3 is congruent to angle 6, angle 1 is congruent to angle 5 Angle 3 is congruent to angle 6, angle 1 is congruent to angle 2, angle 5 is congruent to angle 4 Angle 6 is congruent to angle 1, angle 5 is congruent to angle 3, angle 4 is congruent to angle 2
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Hi what is 398÷45.

The value of 33 + 42 = .

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

+42

A scout troop 32 markers along a hiking trail. Each Microway is 9 ounces. On the scale to begin the hike, they put the markers in the backpack. If the empty backpack weighed 3 pounds, how much did the backpack weigh with all the markers in it?

Answers

Answer:

The backpack weighs 21 pounds with all the markers in it.

Step-by-step explanation:

Since they bring 32 markers and each marker is 9 ounces, the weight of all the markers is 288. We know 288 ounces is 18 pounds, so we add 18 to 3. So the backpack weighs 21 pounds with all the markers in it.

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Answers

Answer:

Hopefully this graph helps you!

Here is the completed table showing the description of 2D quadrilaterals:

Quadrilateral Two pairs of opposite angles equal One pair of opposite angles equal Two pairs of parallel sides One pair of parallel sides Two pairs of equal sides All angles 90°
Square ✓ ✓ ✓
Rectangle ✓ ✓ ✓
Parallelogram ✓ ✓
Rhombus ✓
Kite
Trapezium ✓ ✓
Note: "Trapezium" is the British English term for what is called a "trapezoid" in American English.

4 cups 6 fl oz - 2 cups 7 fl oz