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a_sh-v [17]
3 years ago
9

Can someone please help?

Mathematics
1 answer:
kifflom [539]3 years ago
5 0
Standard form means, move the variables to the left-hand-side and leave the constant all by herself on the right-hand-side, usually sorting the variables, so"x" goes first.

now, there's a denominator, we can do away with it, by simply multiplying both sides by the denominator, so let's do so,

\bf y=-\cfrac{2}{3}x+7\implies \boxed{3}\cdot y=\boxed{3}\cdot \left( -\cfrac{2}{3}x+7 \right)\implies 3y=-2x+21
\\\\\\
\stackrel{standard~form}{2x+3y=21}
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At the local bakery, Ariel bought 2 oatmeal cookies for $1.50. Mei bought 12 dozen oatmeal cookies for $4.50.
Viefleur [7K]

Answer:

A=3rd one

B=Yes, Its a straight line through the origin

C=1 cookie costs $0.75

Step-by-step explanation:

The reason why C is $0.75 is because of ratios.

2:$1.5

2 divided by 2=1

2 divided by $1.50=$0.75

$0.75 per cookie

4 0
2 years ago
Jazmine can run 4 5/6 miles in 2/3 of an hour. How many miles can she run in 1 hour?
Alona [7]

Answer: she can run 6\dfrac54 mile sin 1 hour.

Step-by-step explanation:

Given : Distance run by Jasmine in \dfrac23 of an hour = 4\dfrac56\text{ miles}=\dfrac{24+5}{6}\text{ miles}

=\dfrac{29}{6} miles

Distance run by Jasmine in 1 hour = \dfrac{29}{6}\times\dfrac{3}{2}=\dfrac{29}{4} miles.

=6\dfrac{5}{4}   miles.

Hence, she can run 6\dfrac54 mile sin 1 hour.

7 0
3 years ago
Ratios- 3:6, for every 3 kids there are 6 adults, if there are 120 adults, how many kids are there?
dimulka [17.4K]
There are 60 kids. You just have to divide 120 by 2. 
7 0
4 years ago
Read 2 more answers
the number of users on a new social media website can be modeled by the function f(t) = 12(1.2)^t , where t is the time, in week
Anna71 [15]

The number of users on new social media site increase as 21, 25, 30, 36,
The average rate of change is given by 5.

The function f (t) = 12 (1.2) ^t show how the rate of users increases in weeks.

<h3>What is Average?</h3>

Average of the values is the ratio of total sum of values to the number of values.

Here,  f (t) = 12 (1.2) ^t is defined in the range of (3, 6)
So the value of the function in its range is given by
1)  f (3) = 12 (1.2) ^3
          = 21
2)  f (4) = 12 (1.2) ^4
   =  25
3)   f (5) = 12 (1.2) ^5
    = 30
4)   f (6) = 12 (1.2) ^6
     = 36
Now the average rate of change = sum of all difference in values at every week / max. Difference in interval of range(3,6)

= f(6)-f(3)/6-3
= 15/3
= 5

Thus required average change of rate is 5.

Learn more about average here:

brainly.com/question/24057012

#SPJ1


7 0
2 years ago
Adam is three years older than Joe. After three years, Adam’s age will be four years less than two times Joe's age. Considering
Anuta_ua [19.1K]

Answer:

2y=2y-4=x

Step-by-step explanation:

3 0
3 years ago
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