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AnnZ [28]
2 years ago
8

Help me solve thanks

Mathematics
1 answer:
Inessa [10]2 years ago
7 0
Answer is (A) x < 14/5
(B) x < -21/4
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If the mean of 25, 28, a, 30 and 32 is 27, then find the value of a.
Anna11 [10]

Answer:

a = 20

Step-by-step explanation:

The mean is calculated as

mean = \frac{sum}{count}

          = \frac{25+28+a+30+32}{5}  = \frac{115+a}{5}

Then

\frac{115+a}{5} = 27 ( multiply both sides by 5 to clear the fraction )

115 + a = 135 ( subtract 115 from both sides )

a = 20

6 0
3 years ago
HELP PLEASE FAST. 30 POINTS.
QveST [7]

Answer:

<em>The age of the oldest child id 7.</em>

Step-by-step explanation:

There are 5 children:

1st Child: 7 Years Old

2nd Child: 6 Years Old

3rd Child: 5 Years Old

4th Child: 4 Years Old

5th Child: 3 Years Old

<em>The ges of any two consecutive children difference is 2 years old: 1st Child and 3rd Child. </em>

Hope this helped! :-)

3 0
3 years ago
What is the product of -3 1/3 and -8 7/10
nexus9112 [7]

Answer:

29

I hope this helps!

6 0
3 years ago
Read 2 more answers
Ella is Bono motorcycle and he’s taking out a loan in the amount of $15,000 her choice is for the loan or a 36 month loan at 6.5
klemol [59]

Answer:

Step-by-step explanation:

Step-by-step explanation:

The formula for simple interest is expressed as

I = PRT/100

Where

P represents the principal

R represents interest rate

T represents time in years

I = interest after t years

Considering the 36-month loan,

T = 36 months = 36/12 = 3 years

P = $15000

R = 6.5%

Therefore

I = (15000 × 6.5 × 3)/100

I = 292500/100

I = $2925

Considering the 48-month loan loan,

T = 48 months = 48/12 = 4 years

P = $15000

R = 7.5%

Therefore

I = (15000 × 7.5 × 4)/100

I = 450000/100

I = $4500

The difference in the amount of interest Ella would have to pay for these two loans is

4500 - 2925 = $1575

4 0
2 years ago
There are 112 seats in the school auditorium there are 7 seats in each row there are 70 people seated filling up full rows of se
irina [24]
6 rows
112/7=16
70/7=10
16-10=6
3 0
3 years ago
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