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Nutka1998 [239]
3 years ago
10

Solve, using the substitution method.

Mathematics
1 answer:
Finger [1]3 years ago
8 0
Y=7-2x
14-4x=2(7-2x)
14-4x=14-4x

C.infinite number
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mr. Hill measures the screws on his workbench he records the measurements in the chart mr. Hale found another screw using inch r
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3 years ago
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Step-by-step explanation:

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3 years ago
What is m∠PTR? a. 12 b. 40 c. 50 d. 140 HELP!!!
kramer

Answer:

m<PTR = 140°

Step-by-step explanation:

First, find the value of x. To find the value of x, derive an equation which you'd use in solving for x.

m<PTQ = (x + 28)°

m<RTS = (2x + 16)°

m<PTQ = m<RTS (vertical opposite angles are congruent)

Therefore:

x + 28 = 2x + 16

Solve for x. Combine like terms

28 - 16 = 2x - x

12 = x

x = 12

Find m<PTQ

m<PTQ = (x + 28)

plug in the value of x

m<PTQ = 12 + 28 = 40°

m<PTR + m<PTQ = 180° (supplementary angles)

m<PTR + 40° = 180° (substitution)

m<PTR = 180 - 40 (subtracting 40 from each side)

m<PTR = 140°

3 0
3 years ago
Which of the following are binomials? Check all that apply.
Nezavi [6.7K]
<span>Binomial is the sum of two monomials.
</span>
\text{binominals:}\\\\C.\ x^2+18\\D.\ x+2
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7 0
3 years ago
ANSWER QUICKLY! Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2
Dafna1 [17]

Answer:

y= -2/3x+490

slope: -2/3

y-intercept: 490

Step-by-step explanation:

Y-intercept form is y=mx+b, so you would first subtract 2x from both sides to get 3y= -2x+1,470. Then you divide both sides by 3, to get y= -2/3x+490. -2/3 is in the place of m, so it is the slope, and 490 is in the place of b, so it is the y-int.

3 0
4 years ago
Read 2 more answers
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