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Svetach [21]
3 years ago
15

Which relation is a direct variation that contains the ordered pair (2, 7)?

Mathematics
2 answers:
zimovet [89]3 years ago
8 0
Y=7/2x that's the answer 
DedPeter [7]3 years ago
6 0

Answer:

EDGE 2020

Step-by-step explanation:

D) y=7/2(x)

trust me

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You start a savings account and on the first week you deposit $2. Every
vlada-n [284]

Answer:

558 weeks

Step-by-step explanation:

let x = number of weeks

this equation can be derived from the question

2 + 1x = 560

collect like terms

x = 560 - 2

x = 558

5 0
3 years ago
Ann, Chang, and Kareem sent a total of
Gnoma [55]

It is given in the question that

Ann, Chang, and Kareem sent a total of 89 text messages over their cell phones during the weekend. Ann sent 9 fewer messages than Chang. Kareem sent 3 times as many messages as Ann.

Let number of messages Chang sent be x. And Ann sent 9 fewer than Chang, so Ann sent (x-9) messages. And Kareem sent 3 times as many messages as Ann, so Kareem sent 3(x-9) messages.

And the total messages are 89. That is

x+x-9+3(x-9)=89

Combining like terms

x + x - 9 + 3x-27 =89
\\
5x -36=89
\\
5x = 125
\\
x =25

So Chang sent 25 messages, Ann sent

25-9=16 messages

And Kareem sent

3*16 = 48 messages

8 0
3 years ago
Solve for f(-2) <br> PLEASE HELPPPPP
viva [34]

Answer:

5/9

Step-by-step explanation:

f(x) = 5 * 3^x

Let x = -2

f(-2) = 5 * 3^-2

We know a^-b = 1/a^b

     = 5 * 1/3^2

    = 5/9

7 0
2 years ago
Read 2 more answers
Which of the following are mathematical sentences? Check all that apply.
babymother [125]
The following that are mathematical sentences are b,c
5 0
3 years ago
7.064 and expanded form ​
Andreas93 [3]

Answer:

seven and sixty-four thousandths

Step-by-step explanation:

in factors it would be

7 x 1

+ 0 x 0.1

+ 6 x 0.01

+ 4 x 0.001

3 0
3 years ago
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