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Studentka2010 [4]
3 years ago
15

Fifty less than three times a number is -20. Find the number.

Mathematics
2 answers:
Mrrafil [7]3 years ago
8 0
3x - 50 = -20
Add 50 to both sides
3x = 30
x = 10
The number is 10
AysviL [449]3 years ago
3 0

Answer:

10

Step-by-step explanation:

assigning variable x to the unknow number

3x - 50 = -20

3x = 30

x = 10

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HELPP PLEASEE! pleaseeeeee
vfiekz [6]

Answer:

a = 14 km

Step-by-step explanation:

The area of a triangle is

A = 1/2 bh  where b is the base and h is the height

112.7 = 1/2 ( a) 16.1

112.7 = 8.05a

Divide each side by 8.05

112.7/8.05 = a

14 =a

a = 14 km

3 0
2 years ago
Bobby think that 5^2 = 10. What is wrong with this answer
Korvikt [17]

Answer:

see below

Step-by-step explanation:

5^2  means 5*5  not 5*2

5^2 = 5*5 = 25  not 10

5 0
3 years ago
Read 2 more answers
What kind of triangle is this!!! Please Help!!!
Arisa [49]

Answer:

Right Isosceles

Step-by-step explanation:

First, let's see if this triangle is Acute, Obtuse or Right.

We see that PB and QB are perpendicular lines, meaning that they form a right angle.  Therefore, triangle PQB is a right triangle.

Next, let's see if this triangle is equilateral, isosceles or scalene. PB and QB are congruent side lengths but PQ is not congruent to either PB or QB. Therefore, because two of the side lengths are congruent to each other and one is not, then triangle PQB is a isosceles triangle.

In conclusion, triangle PQB can be categorized as a right isosceles triangle.

Hope this helps!

3 0
3 years ago
Can I please have help​
Dima020 [189]

Answer:

15a+12ac+6ab

Step-by-step explanation:

3a(5 + 4c + 2b)

5*3a = 15a

4c*3a = 12ac

2b*3a = 6ab

6 0
2 years ago
Read 2 more answers
What are the factor pairs for 10?
sineoko [7]
The pairs are 1 and 10. 2 and 5.
3 0
3 years ago
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