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dalvyx [7]
2 years ago
13

The sum of 3 times a number and 7 is equal to 2. Turn into an equation

Mathematics
2 answers:
VashaNatasha [74]2 years ago
6 0
We know that 3 times a number and 7 equals 2. We can use x as a variable. 3x+7=2. 3x is how many times a number has to be plus seven to equal to 2.
sladkih [1.3K]2 years ago
4 0
3x+7=2 is the equation
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Write the equation in standard form using integers y=4x+5
Taya2010 [7]
Unsure of what y ou want!  y = 4x + 5 is already in slope-intercept form.  If you want "standard form," which looks like Ax + By + C = 0, then identify A, B and C from the given equation y=4x+5.    Rewrite this as -4x + 1y - 5 = 0, so that A=-4, B=1 and C= -5.  This is the eqn in standard form.

7 0
3 years ago
Pls help this is due in 2mins
worty [1.4K]

Answer:

45 dimes

Step-by-step explanation:

66 nickels = 66 x $0.5 = $3.30

$7.80 - $3.30 = $4.50

$4.50 / $0.10 = 45

4 0
3 years ago
What are the solutions to the following system of equations?<br><br> x − y = 6<br> y = x2 −6
anastassius [24]

The solutions to the given system of equations is (0, -6) and (1, -5)  

<h3>Simultaneous equations</h3>

From the question, we are to determine the solutions to the given system of equations

The equations are

x − y = 6 --------- (1)

y = x² −6 ---------- (2)

From equation (1)

x - y = 6

∴ x = 6 + y ------- (3)

Substitute into equation (2)

y = x² −6

y = (6+y)² −6

y = (6+y)(6+y) -6

y = 36 + 6y + 6y +y² -6

y = 36 + 12y + y² - 6

Simplifying

y² + 12y - y + 30 = 0

y² + 11y + 30 = 0

Solve quadratically

y² + 11y + 30 = 0

y² + 6y + 5y + 30 = 0

y(y +6) +5 (y +6) = 0

(y + 5)(y + 6) = 0

y + 5 = 0 OR y + 6 = 0

y = -5 OR y = -6

Substitute the values of y into equation (3)

x = 6 + y

When y = -5

x = 6 + (-5)

x = 6 -5

x = 1

When y = -6

x = 6 + (-6)

x = 6 -6

x = 0

∴ When x = 0, y = -6 and when x = 1, y = -5

Hence, the solutions to the given system of equations is (0, -6) and (1, -5)  

Learn more on Solving simultaneous equations here: brainly.com/question/16863577

#SPJ!

7 0
1 year ago
Given: ∠V ≅ ∠Y, bisects ∠VWY. Prove: ∆VWZ ≅ ∆YWZ Look at the figure. Which postulate or theorem proves the triangles are congrue
Maru [420]

Answer:

AAS

Step-by-step explanation:

We say Angle Angle side Similarty if the two conscutive angles of the triangle are congrent or epual

8 0
3 years ago
Quiz! Let's see what happens! Fill in the expanded table below (start with standard form)​
djyliett [7]

i put it in coments sence it says it is inapropreait

4 0
2 years ago
Read 2 more answers
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