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3 years ago

7

What are the answers for these two questions? please also tell me HOW you got that answer

1 answer:

Viefleur [7K]3 years ago

7 0

9. Multiply the money he has by the portion he spent:

75 x 3/5 = (75 x3)/5 = 225/5 = 45

He spent $45

10. First rewrite 4 1/8 as an improper fraction

33/8

Now multiply by 1/3:

33/8 x 1/3 = (33 x1) /(8 x 3) = 33/24 = 1 3/8

She spent 1 3/8 hours studying math.

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5xb2+(2xa+2) how do you do it help

ddd [48]

So it can be writen as
5 times b^2+(2 times a +2)
or
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5b^2+(2a+2)
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3 years ago

Lucinda began the year with a certain balance in her bank account. During the first month, she made 3 withdrawals of $25 each. D

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3 years ago

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Valerie’s meal costs $32.75 and Derek’s meal costs $39.88. Valerie treats Derek by paying for both meals, and leaves a 14%tip. F

boyakko [2]

$32.75+$39.88=$72.63. $72.63+14%=$82.80

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3 years ago

Read 2 more answers

Write a recursive formula for each explicit formula

Crazy boy [7]

Answer:

38. $a_1=107,\ a_n=a_{n-1}-1$

40. $a_1=87,\ a_n=a_{n-1}+52$

Step-by-step explanation:

38. <u>Given explicit formula:</u>

$a_n=108-n$

When $n=1,$ then $a_1=108-1=107$

When $n=2,$ then $a_2=108-2=106$

When $n=3,$ then $a_3=108-3=105$

When $n=4,$ then $a_4=108-4=104$

and so on

You can see that each next number is 1 less than previous number, so the recursive formula is

$a_n=a_{n-1}-1$

40. <u>Given explicit formula:</u>

$a_n=35+52n$

When $n=1,$ then $a_1=35+52\cdot 1=87$

When $n=2,$ then $a_2=35+52\cdot 2=139$

When $n=3,$ then $a_3=35+52\cdot 3=191$

When $n=4,$ then $a_4=35+52\cdot 4=243$

and so on

You can see that each next number is 52 more than previous number, so the recursive formula is

$a_n=a_{n-1}+52$

8 0

3 years ago

The ratio of female learners to male learners in a class is 3:2. If there are 30 female learners in the class, work out:

saul85 [17]

Answer:

20 male learners
Total number of learners is 50

Step-by-step explanation:

(See attachment below)

3 0

3 years ago