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Evgen [1.6K]
3 years ago
11

What is the answer to this problem?7-3x - 15=19

Mathematics
2 answers:
sergij07 [2.7K]3 years ago
6 0
The answer is x = -9
marshall27 [118]3 years ago
3 0
X=-9 is the answer because you combine like terms first
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What is the measure of the unknown angle?
artcher [175]

Answer:

24

Step-by-step explanation:

x+120+36=180

x+156=180

x=180-156

x=24

3 0
2 years ago
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Which of the following is a trinomial?<br> A. 13x^3<br> B. 12x2 + 2x+10<br> c.9/5x2<br> D. 3x - 15
rusak2 [61]

Answer:

B is a trinomial.

Step-by-step explanation: A trinomial is a math equation with 3 terms connected by plus or minus notations. In these 4 answer choices, choice B is the only one with 3 terms.

8 0
3 years ago
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The length of the subway is 850 miles. If .15 inch represents 45 miles, what is the length of the subway on the map?
Scilla [17]

Answer:

The length of the subway on the map is 2.83\ inches

Step-by-step explanation:

we know that

The scale on the map is equal to the length of the subway on the map divided by the length of the subway in the actual

so

Let

z------> the scale on the map

x------> the length of the subway on the map

y------> the length of the subway in the actual

z=\frac{x}{y}

In this problem we have

z=\frac{0.15}{45}\frac{inches}{miles}

y=850\ miles

substitute and solve for x

\frac{0.15}{45}=\frac{x}{850}

x=850*\frac{0.15}{45}=2.83\ inches

6 0
3 years ago
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the temperature at dawn was -2°F during the day the temperature increased 15 degrees and then dropped 10 degrees in the evening
monitta

Answer:

Answer is 3°F

Step-by-step explanation:

-2°F+15°F= 13°F

13°F-10°F= 3°F

3 0
2 years ago
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In the diagram below, which distances would need to be the same in order for point A to be on the bisector of angle W? Explain w
Pachacha [2.7K]

Answer:

PA = XA

Step-by-step explanation:

Construction of an angle bisector,

1). Mark an arc from point W with the help of a compass which intersect lines WS and WZ at the points P and X respectively.

2). Marc two arcs of the same length form the points P and X which intersect each other at a point A.

3). Joint the points A and W.

Thus AW will be the angle bisector of angle PWX where PA = XA.

Therefore, distances PA and XA will be equal in measure.

4 0
3 years ago
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