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3 years ago

Just need help on first one.

Mathematics

1 answer:

Nataly [62]3 years ago

7 0

Answer:

1st one because they make less than the actual house

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Eight more than three times a number is equal to the number. What is the number

hodyreva [135]

Answer:

-4

Step-by-step explanation:

-4(3) = -12

-12 + 8 = -4

3 0

2 years ago

Read 2 more answers

The 1997 a value of an object was $5000. In 2012, it was worth $9500. The annual percent growth has been constant. What is the a

Daniel [21]

<h3>Annual percent growth is 4.37 %</h3>

Solution:

The increasing function is given as:

$y = a(1+r)^t$

Where,

y is future value

a is initial value

r is growth rate

t is number of years

From given,

a = 5000

y = 9500

t = 1997 to 2012 = 15 years

r = ?

Substituting the values we get,

$9500 = 5000(1+r)^{15}\\\\(1+r)^{15} = 1.9\\\\Take\ \frac{1}{15}th\ power\ on\ both\ sides\\\\1+r = (1.9)^{\frac{1}{15}}\\\\1+r = 1.04367\\\\r = 1.04367 - 1\\\\r = 0.04367\\\\In\ percentage,\\\\r = 0.04367 \times 100 \%\\\\r = 4.367 \% \approx 4.37 \%$

Thus annual percent growth is 4.37 %

8 0

3 years ago

The post office so 900 steps yesterday 1/4 of the stems were a postcard stamps how many postcard stamps did they sell

Wewaii [24]

900x1/4 or 900x 0.25 =__________

8 0

3 years ago

Read 2 more answers

Evaluate each expression

qwelly [4]

Step-by-step explanation:

a = 2
b = 3
c = 5

$\longrightarrow \rm{{\Bigg ( \dfrac{a}{b} \Bigg )}^c} \\ \\ \longrightarrow \rm{{\Bigg ( \dfrac{2}{3} \Bigg )}^5} \\ \\ \qquad \qquad \bigstar \: \boxed{ \bf{ \Bigg ({\frac{x}{y} \Bigg )}^{m} = \frac{ {x}^{m} }{ {y}^{m}} }} \\ \\ \longrightarrow \rm{ \frac{ {(2)}^{5} }{ {(3)}^{5} } } \\ \\ \longrightarrow \bf{ \frac{ 32 }{ 243} }$

Therefore, 32/243 is the answer.

3 0

3 years ago

Pew research reported in 2013 that 15% of American adults do not use the internet or e-mail. They report a margin of error of 2.

Elden [556K]

Answer:

B) They estimate that 2.3% of those surveyed answered incorrectly

Step-by-step explanation:

hope it helps you dude

7 0

3 years ago

Just need help on first one.​

Just need help on first one.