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Fofino [41]
3 years ago
15

Could anyone help with this sheet? please!

Mathematics
2 answers:
fredd [130]3 years ago
8 0

Answer:

1) 5 are absent and 20 are present

2) $42.50

3) $155.29

4) $535.50

5) $107.52 per year and $8.96 per month

Step-by-step explanation:

LuckyWell [14K]3 years ago
4 0

Answer:

Step-by-step explanation:

Q1:

25*20/100=5

25-5=20

answer: 5 absent and 20 present

Q2:

50*15/100=7.5

50-7.5=42.5

answer: 42.5

Q3:

146.50*6/100=8.79

146.50-8.79=137.71

answer: 137.71

Q4:

30%-5%=25%

150*25/100=37.5

150-37.5=112.5

answer: 112.5

Q5:

96*12/100=11.52

96+11.52=107.52

answer for the first part: 107.52 per year

107.52/12=8.96

answer for the last part: 8.96 per month

-----------------------------------------------------------------------

I hope it was simple :)

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One apple and three oranges cost $5.10 and another 5 oranges and one Apple cost $7.50 what is the price of one apple and one ora
alekssr [168]

Answer:

$2.7

Step-by-step explanation:

Let the price of one apple be x

and the price of one orange y

Hence ;

One apple and 3 oranges would cost:

x + 3×y = $5.10----------------------------(1)

One apple and 5 oranges would cost;

x + 5×y = $7.50--------------------------(2)

Subtracting eqn (1) from (2), we have :

x-x + 5y -3y = 7.5- 5.1

2y = 2.4

y = $1.2

From eqn(1)

x + 3y = $5.10

x= $5.10-3($1.2) = $5.10-$3.6 = $1.5

Hence x=$1.5 and y= $1.2

We are required to find the cost of one apple and one orange, hence :

x+y = $1.5+$1.2= $2.7

4 0
3 years ago
What is the exponential function modeled by the following table?
Ierofanga [76]
\bf \begin{array}{ccll}
x&f(x)\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
2&\stackrel{3^2+1}{10}\\
3&\stackrel{3^3+1}{28}\\
4&\stackrel{3^4+1}{82}
\end{array}\implies f(x)=3^x+1
8 0
3 years ago
Help me ASAP plz!!!!
elena55 [62]
(2, -1), (6,- 4), and (6, -1). Hope this helps man!
6 0
3 years ago
Read 2 more answers
Suppose IQ scores were obtained from randomly selected couples. For 20 such pairs of​ people, the linear correlation coefficient
Brilliant_brown [7]

Answer:

108.88

Step-by-step explanation:

Given that:

Equation of Regression line obtained for couple's IQ:

y=9.88+0.9x

x represents the IQ score of the husband

The best predicted IQ of wife Given that husband's IQ is 110

y = 9.88 + 0.9(110)

y = 9.88 + 99

y = 108.88

6 0
3 years ago
Please help, thank you
solmaris [256]

Answer:

1.

8x + 6y = 28

9x + 3y = 39

Set to equal y.

8x + 6y = 28

6y = -8x + 28

y = -8/6x + 28/6

y = -4/3x + 14/3

9x + 3y = 39

3y = -9x + 39

y = -9/3x + 39/3

y = -3x + 13

Set equal to each other.

-4/3x + 14/3 = -3x + 13

Combine like terms.

5/3x = 25/3

Multiply by 3/5

x = 5

Plug x in.

y = -3(5) + 13

y = -15 + 13

y = -2

(5, -2)

2.

-2x - 9y = -3

-7x - 9y= -33

Set equal to y.

-2x - 9y = -3

-9y = 2x - 3

y = -2/9x + 3/9

y = -2/9x + 1/3

-7x - 9y= -33

-9y = 7x - 33

y = -7/9x + 33/9

y = -7/9x + 11/3

Set equal to each other

-2/9x + 1/3 = -2/9x + 1/3

0 = 0

infinitely many solutions

8 0
3 years ago
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