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madam [21]
3 years ago
14

Solve these 3 separately, please!:

Mathematics
2 answers:
MAVERICK [17]3 years ago
6 0

Answer:

4-6w=16 is w=-2

-9-5r=-19 is r=2

5k-7=3k+3 is k=5

eimsori [14]3 years ago
6 0
Answers:
• w = -2
• r = 2
• k = 5

Explanation:
• Problem #1

Step 1 - Subtract four from both sides of the equation

4 - 6w = 16
4 - 4 - 6w = 16 - 4
-6w = 12

Step 2 - Divide both sides of the equation by negative six

-6w = 12
-6w/ -6 = 12/ -6
w = -2

• Problem #2

Step 1 - Add nine to both sides of the equation

-9 - 5r = -19
-9 + 9 - 5r = -19 + 9
-5r = -10

Step 2 - Divide both sides of the equation by negative five

-5r = -10
-5r/ -5 = -10/ -5
r = 2

• Problem #3

Step 1 - Add seven to both sides of the equation

5k - 7 = 3k + 3
5k - 7 + 7 = 3k + 3 + 7
5k = 3k + 10

Step 2 - Subtract 3k from both sides

5k = 3k + 10
5k - 3k = 3k - 3k + 10
2k = 10

Step 3 - Divide both sides of the equation by 2

2k = 10
2k/ 2 = 10/ 2
k = 5
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marysya [2.9K]

Answer:

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Step-by-step explanation:

Since the triangles are similar they have the same angle measures

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We know 2 of the angle measures: ∠S and ∠R, and since they are similar we know ∠P and ∠U

In triangles the sum of all angle measures is always 180 degrees, so we can solve for ∠Q with this formula

A+B+C=180

46+70+C+180

116+C=180

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3 years ago
Carla traveled 320 miles in 5 hours. At this rate, how far will Carla travel in 7 hours?
yaroslaw [1]

Answer:

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Step-by-step explanation:

320/5 is 64 miles per hour

64*7 is 448

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5 0
3 years ago
given that BD is both the median and altitude of triangle ABC, congruence postulate SAS is used to prove that triangle ABC is wh
stira [4]

Answer:

Isosceles

Step-by-step explanation:

Consider triangle ABC, BD is the median and the altitude drawn to the side AC. This segment (BD) divide the triangle ABC into two triangles: ABD and CBD.

In these triangles:

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Thus, by SAS postulate, triangles ABD and CBD are conruent. Congruent triangles have congruent corresponding sides. Hence, AB=CB.

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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