Marcie brought a 50 foot roll of packing tape. she used two 71/8 foot lengths. how much tape is left on the roll

of tape is left on the roll.

Step-by-step explanation:

Given:

Total length of packing tape roll bough = 50 feet

She used two lengths of feet .

To find the length of tape left on the roll.

Solution:

Total length of tape used by Marcie =

Length of tape that is left can be given as:

⇒

⇒

In order to subtract fraction from a whole number, we will write whole number in fraction form with denominator 1.

⇒

Taking LCD =4 and multiplying the numerator and denominator of first fraction with 4

⇒

⇒

⇒

⇒

Converting the fraction to mixed number by writing the quotient as whole number, the remainder as numerator and divisor as denominator.

⇒

Thus, of tape is left on the roll.

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.