3 years ago

Find the sum −1/2(7z+4)+15(5z−15)

Mathematics

2 answers:

nlexa [21]3 years ago

7 0

Answer: $\frac{143x-453}{2}$

sattari [20]3 years ago

4 0

Answer: $\frac{143x - 453}{2}$

Step-by-step explanation:

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Which graph of a relation is also a function ?

Illusion [34]

Answer:

Step-by-step explanation:

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skad [1K]

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3 years ago

PLEASEE HELPP....Simplify the expression using properties of exponents.

Aleks04 [339]

Answer:

Step-by-step explanation:

Using the rule of exponents

$\frac{a^{n} }{a^{m} }$ = $\frac{1}{a^{(m-n)} }$

Given

$\frac{25a^{-5}b^{-8} }{5a^{4}b }$

= $\frac{25}{5}$ × $\frac{a^{-5} }{a^{4} }$ × $\frac{b^{-8} }{b^{1} }$

= 5 × $\frac{1}{a^{(4-(-5))} }$ × $\frac{1}{b^{(1-(-8))} }$

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3 years ago

Solve the formula I=Prt to find the time, t, when P=$1,700, I=$510, and r=6

Art [367]

510 = (1700)(6)(t)

510 = 10200t

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7 0

3 years ago

Suppose you work in a grocery store 4 hours on Friday and 5 hours on Saturday. You earn $6.25 an hour.

Shalnov [3]

Answer:

If the quetion is how much money I earned on both days it would be 56.25

Step-by-step explanation:

4hours times 6.25 an hour = 25 now we do 5hours times 6.25 an hour = 31.25 so add them to get 56.25

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3 years ago