5(r-10)=-51 what is the value of r

Mathematics

2 answers:

slega [8]3 years ago

4 0

Answer:

r=-20.2

Step-by-step explanation:

5r+50=-51

-51-50=-101

5r/-101

raketka [301]3 years ago

3 0

Use distributive method
5r - 50 = -51
Add 50
5r = -1
Divide by 5
r = -1/5

You might be interested in

What are the solutions of the equation x2+4×4=25

lys-0071 [83]

I think it is 4.5 because 4*4=16 and 4.5*2=9. adding those together will make 25.

3 0

2 years ago

Solve 4sin^2 x-3=0 find two values of sinx that satisfy this equation

Leviafan [203]

$4 sin^{2} x-3=0 \\ 4 sin^{2} x=3 \\ sin^{2} x= \frac{3}{4} \\ sinx= \pm \sqrt{ \frac{3}{4} } \\ sinx= \frac{ \sqrt{3} }{2} \ or \ sinx=- \frac{ \sqrt{3} }{2} \\ x= \frac{ \pi }{3} , \ \frac{2 \pi }{3} , \ \frac{4 \pi }{3} , \ \frac{5 \pi }{3}$

5 0

3 years ago

According to the school survey, 12% of the students at Rockwood Junior High School speak Spanish. There are 36 students at the s

elixir [45]

Mean=np
36=(0.12)n
n=300
300 students were surveyed.
That's the way I answer in my country but I'm not sure about this solution is correct in your school or not.

7 0

3 years ago

Read 2 more answers

The both that are not in green I don't know how to do them . I need some help.

attashe74 [19]

Answer:

Step-by-step explanation:

B. 0.00604

D.1.47 × $10^{-3}$