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Reika [66]
3 years ago
7

Which of the following is a solution for the equation 7x+ 21 = 105? 105 15 84 12

Mathematics
2 answers:
lisov135 [29]3 years ago
7 0
The correct answer is 12
bazaltina [42]3 years ago
3 0

Answer:

12

Step-by-step explanation:

7x +21 =105

7x =105 - 21

7x =84

x=84 :7

x=12

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In a recent year 21.6% of all registered doctors were female if there were 54,100 female registered doctors that year what was t
oksian1 [2.3K]

Answer:the total number of registered doctors is 250463

Step-by-step explanation:

Let x represent the total number of registered doctors

In a recent year 21.6% of all registered doctors were female. It means that the number of registered female doctors would be

21.6 /100 × x = 0.216 × x = 0.216x

if there were 54,100 female registered doctors that year, it means that

0.216x = 54100

x = 54100/0.216 = 250463

8 0
3 years ago
Quadrilateral FRIO is the result of a reflection of quadrilateral LAMB over the y-axis. FRIO has vertices at F(-7,6), R(1,7), I(
andrew11 [14]

Answer:

F' = (7, 6)

R' = (-1, 7)

I' = (-2, -5)

O' = (6, -6)

Step-by-step explanation:

The rule of reflection over the y-axis is, (x, y) ---> (-x, y). So change all the x values into the opposite signs. So the -7 of F would turn into just 7, the 1 of R would turn into -1, the 2 of I would turn into -2, and -6 of O would turn into just 6.

3 0
3 years ago
I neep help asap deadline 4:00pm
Sunny_sXe [5.5K]

Answer:

x = -2 to x = 1

Step-by-step explanation:

A function is constant when the y value does not change (i.e. the graph is a horizontal line). This is true between x = -2 and x = 1.

4 0
3 years ago
Read 2 more answers
I need this Done tonight. Plz help me.
timofeeve [1]

Answer is 15 miles

This is because:

1 inch- 5 miles

3 inches- 15 miles

3x5=15 miles

Hope this helps!

5 0
3 years ago
A . 12<br> B . 15<br> C . 36<br> D .39
yulyashka [42]

Answer:

The answer is 36 or c all you need to do is multiply 12 by 3

7 0
3 years ago
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