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Vitek1552 [10]
3 years ago
14

I need help asap :):);)

Mathematics
1 answer:
lana66690 [7]3 years ago
4 0

Answer:

Emily is 17

Step-by-step explanation:

If Jamie is 47 and she is 4 less than 3 times older than Emily, you want to start by doing the opposite of each identifying word. Remember to work backwards. 4 less means minus 4, but you want to do the opposite so you will add 4 to 47. 47 + 4 = 51 Then if it says 3 times this mean multiplication but again, we wanna do the opposite so 51 ÷ 3 = 17

To check it Multiply 17 by 3 and then subtract 4. 17*3=51 51-4=47

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Plz help its due TOMMOROW​
sashaice [31]

Answer:

  86%

Step-by-step explanation:

Let g represent the mean mark for the 10 girls in the class. Then the mean mark for the class was ...

  10g +20(62%) = 30(70%)

  g = 3(.7) -2(.62) . . . . . . . . . divide by 10 and subtract 2(.62)

  g = .86 = 86%

The mean mark for girls was 86%.

_____

You can do this in your head if you consider it in terms of deviations from the mean. The second equation above can be rewritten and factored as ...

  g = 70% +2(70% -62%)

That is, because there are 2 boys for every girl, the girl's score is above the mean by an amount that is 2 times the amount that the boy's score is below the mean. The boys' score is below by 8%, so the girls' score is above by 16%, so is 86%.

4 0
3 years ago
Hey yall! i dont need the math just the answers!
Inessa05 [86]

Answer:

13A. 14, 48, 50

13B. both mulitpled by 2?

13C. 56, 125

14. Yes

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
How long will it take bernando to make the trip if he drives at 80 miles per hour?
brilliants [131]
How long is the trip?
7 0
3 years ago
Write an equation for the polynomial graphed below
Anit [1.1K]

The expression for the polynomial graphed will be y(x) = (x + 3)(x - 1 )(x - 4 ).

<h3>How to factor the polynomial?</h3>

From the graph, the zeros of the polynomial of given graph are:

x = -3

x = 1

x = 4

Equate the above equations to zero

x + 3 = 0

x - 1 = 0

x - 4 = 0

Multiply the equations

(x + 3)(x - 1 )(x - 4 ) = 0

Express as a function gives;

y = (x + 3)(x - 1 )(x - 4 )

Hence, the factored form of the polynomial will be y = (x + 3)(x - 1 )(x - 4 ) .

Read more about polynomials at:

brainly.com/question/4142886

#SPJ1

6 0
2 years ago
A dress is marked up 16 2/3 to a final price of 140. what is the original price
rewona [7]
163.38

hope this helped!!
will u plz give me brainliest?
6 0
3 years ago
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