When the sum of a number and 7 is multiplied by 5, the result is 20 what is the number

Hello from MrBillDoesMath!

-3

Discussion:

Call the number "n". Then

(n+7) * 5 = 20              =>                (given)

(n+7) = 20 * (1/5)  = 4  =>                 (divide both sides by 5)

n = 4 - 7  = -3                                   (subtract 7 from both sides)

Regards,  

MrB

you're missing vital information, add to it so we can solve this problem for you.

step-by-step explanation:

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.