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3 years ago

Z-49+851=100+21z /////////////////////////////////////////////////

Mathematics

2 answers:

WITCHER [35]3 years ago

4 0

Answer:

z=35.1

Step-by-step explanation:

noname [10]3 years ago

4 0

Answer:

z = 351/10 or z = 35.1

Step-by-step explanation:

*Add/subtract numbers: -49 + 851 = 802

z + 802 = 100 + 21z

*Subtract 802 from both sides

z + 802 - 802 = 100 + 21z - 802

*Simplify

z = 21z - 702

*Subtract 21z from both sides

z - 21z = 21z - 702 - 21z

*Simplify

-20z = -702

*Divide both sides by -20

- 20z/20 = - 702/- 20

*Simlify

z = 351/10 or z = 35.1

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Irina-Kira [14]

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Step-by-step explanation:

28/21 is the equivalent to 4/3.

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2 years ago

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2 years ago

( 7x + 1/2) + ( 7x - 7 and 1/2) Simplify

pishuonlain [190]

Answer:

The answer will be 7(2x - 1)

Step-by-step explanation:

1) Convert 7 and 1/2 to improper fraction. Use this rule: a b/c = ac + b/c

$7x + \frac{1}{2} + 7x - \frac{7 \times 2 + 1}{2}$

2) Simplify 7 × 2 to 14 .

$7x + \frac{1}{2} + 7x - \frac{14 + 1}{2}$

3) Simplify 14 + 1 to 15.

$7x + \frac{1}{2} + 7x - \frac{15}{2}$

4) Collect like terms.

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2 years ago

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Answer:

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Step-by-step explanation:

We will utilize the standard form of an exponential function, given by:

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$\displaystyle f(t)=185\big(\frac{1}{2}\big)^t$

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3 years ago