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3 years ago

15 POINTS AND BRAINLY IF RIGHT ANSWER

Mathematics

2 answers:

Lina20 [59]3 years ago

6 0

Answer:

An expression is a number, a variable, or a combination of numbers and variables and operation symbols. An equation is made up of two expressions connected by an equal sign.

16−6=10 This is an equation—two expressions are connected with an equal sign.

2. 4⋅2+1 This is an expression—no equal sign.

3. x÷25 This is an expression—no equal sign.

4. y+8=40 This is an equation—two expressions are connected with an equal sign.

Hope this helps! :)

KonstantinChe [14]3 years ago

3 0

Answer: An equations is a number, a variable, or a combination of numbers and variables and operational symbols. An equation is made up of two expressions connected by an equal sign.

Example Expression: 8x+5y-3x-5

Example Equation: 5x-4=x

Hope this helps a little bit:)

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seventy-five percent or 15 of the students in emily's homeroom class are going on the field trip two thirds or 12 of the student

SOVA2 [1]

Let x be the number of students in Emily's class such that 75% of x is 15.
15 = 0.75x
The value of x is equal to 20.
Let y be the number of students in Santiago's class. Similar with what we did previously,
12 = (2/3)y
The value of y is equal to 18.
Therefore, there are more student's in Emily's class than in Santiago's class.

8 0

3 years ago

Complete y^2+15y+56=(y+7)(y+?) ...?

Rufina [12.5K]

The two factors of a quadratic equation can be multiplied to form the original equation. Let the missing term be a:
y² + 15y + 56 = (y + 7)(y + a)
y² + 15y + 56 = y² + (7 + a)y + 7a
We can now compare the coefficient of the like terms, either the one with y or the one without y, and find the value of a.
15 = 7 + a; a = 8
OR
56 = 7a; a = 8

Second factor is (y + 8)

5 0

3 years ago

Read 2 more answers

Solve the system of equations y=-2/3x+1 and x+y=4

LUCKY_DIMON [66]

Answer:

Point form: (9,-5)

Step-by-step explanation:

y=-2/3x+1 and x+y=4

Point form: (9,-5)

Equation form: x = 9, y = -5

3 0

3 years ago

2/3 21 and 23 can best be described as 4

stich3 [128]

Answer:

A) Vertical angles

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1 and 3 and 2 and 4 are vertically opposite angles or vertical angles, so option A is correct.

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hope it helps...

have a great day!!

6 0

2 years ago

I swear this is not a quiz it's a lesson and I just finished the quiz and I got to 70

I am Lyosha [343]

Step-by-step explanation:

Any coordinates in the shaded area are solutions. Any coordinates on the line are not a solution due to it being dashed. Anything in the non-shaded area is also not a solution. You can always check if you are right by plugging in the numbers.

Example: (1, -2)

-2 < 0.5(1) + 2

-2 < 0.5 + 2

-2 < 2.5

True, -2 is less than 2.5.

Another Example: (-2, 1)

1 < 0.5(-2) + 2

1 < -1 + 2

1 < 1

False, 1 is not less than itself.

4 0

3 years ago