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3 years ago

HELP, DUE TOMORROW!!! How do you solve real world problems using expressions?

Mathematics

2 answers:

e-lub [12.9K]3 years ago

8 0

Expressions has no answer. Therefore, expressions can be used to simply real world problems.

lutik1710 [3]3 years ago

6 0

Expressions are problems with no answer. I would use it to represent inequalities and/or a basic formula

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Naily [24]

Answer:

-94 ...nagative 94

Step-by-step explanation:

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3 years ago

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Pierce swims 10 laps in a pool in 8 minutes. He spent the same amount of time on each lap. How much time did each lap take him?

Trava [24]

Answer:

48 sec.

Step-by-step explanation:

8 devided by 10.

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3 years ago

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David waits by the crosswalk sign on his way to school. The angle outlined on the sign turns through 50 one-degree angles. Find

mamaluj [8]

Answer:

7 $\frac{1}{5}$ th turns

Step-by-step explanation:

An angle that turn through n one-degrees is said to have an angle measure of n degree. An angle that turns through 1/360 of a circle is called a one degree angle, this is used to measure angles

:. measure of the angle turns through 50 one degree angles

= $\frac{360}{50}$ = 7 $\frac{1}{5}$ th turns.

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3 years ago

Is this set of numbers a Pythagorean triple? yes or no

Kaylis [27]

Answer:- No.

Explanation :-

Substitute these numbers in pythagoras theorem to check if the set of numbers is a pythagorean triplet.

Pythagoras theorem :- sq. of hypotenuse (longest side) is equal to the sum of sq.s of other two sides.

Here,

hypotenuse = 12 (as it is the longest side)

and other two sides are 6 and 9.

----> 6^2 + 9^2 = 12^2

----> 36 + 81 = 144

----> 117 = 144

Since, LHS is not equal to RHS, this set of numbers is not a pythagorean triplet.

8 0

3 years ago

Two planes just took off from St. Louis, MO. The first plane is traveling 3.5 times as fast as the second plane. After Traveling

Yanka [14]

Answer:

Speed of first plane is 350 miles per hour

Speed of second plane is 100 miles per hour

Step-by-step explanation:

Let the speed of the second plane be X

Then the speed of the first plane will be 3.5 X

Distance travelled by first plane is 9.5 *X

Distance travelled by second plane is 9.5 * 3.5 X

Difference of distance between the two plane is

$9.5 * 3.5 X - 9.5 *X = 2375\\23.75 X = 2375\\X = 100$ miles per hour

Speed of first plane is 3.5 *100 = 350 miles per hour

Speed of second plane is 100 miles per hour

8 0

3 years ago