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3 years ago

Consider this system of equations. Which shows the first equation written in slope-intercept form? 1/2(2y+10)=7x

Mathematics

2 answers:

AysviL [449]3 years ago

8 0

Answer:y=7x-5

Step-by-step explanation:

notka56 [123]3 years ago

3 0

Answer:

$y=7x - 5$ is in slope intercept form

Step-by-step explanation:

$\frac{1}{2}(2y+10)= 7x$

We need to write the equation in slope intercept form

Slope intercept form of the equation is $y=mx+b$

where m is the slope and b is the y intercept

To get the equation in slope intercept form we need to get y alone

$\frac{1}{2}(2y+10)= 7x$

Multiply 1/2 inside the parenthesis

$y+5 = 7x$

To get y alone , subtract 5 from both sides

$y=7x - 5$ is in slope intercept form

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First twelve numbers Add 15, subtract 10 (first term: 4)

astra-53 [7]

Answer:

1st- 4, 2nd- 9, 3rd- 14, 4th- 19, 5th- 24, 6th- 29, 7th- 34, 8th- 39, 9th- 44, 10th- 49, 11th- 54, 12th-59

Step-by-step explanation:

1st- 4

2nd- 4+15-10= 9

3rd- 9+15-10=14

4th- 14+15-10=19

5th- 19+15-10=24

6th- 24+15-10=29

7th- 29+15-10=34

8th- 34+15-10=39

9th- 39+15-10=44

10th- 44+15-10=49

11th- 49+15-10=54

12th-54+15-10=59

4 0

3 years ago

Which is equivalent to 9+2i -(6+ 4i)? [A] 3-212 [C] 15+6i [B] 3-6 [D] 3-2i

Vinvika [58]

It's D, 3-2i.

Hope this helps

8 0

3 years ago

Jasmine got a prepaid debit card with $25 on it. For her first purchase with the card, she bought some bulk ribbon at a craft st

Umnica [9.8K]

Answer:

23 Yards

Step-by-step explanation:

So for this question, we would have to start off with writing an equation: 19.71+0.23x=25 once we subtract 19.71 on both sides, the left over sum of money will be 5.29. Since we are dealing with BOTH Dollars and Cents, it should be remembered to use 23 CENTS instead of Dollars. $\frac{5.29}{0.23}$ = 23 so the finals answer is 23 yards.

3 0

2 years ago

Figure ABCD is a kite

Mars2501 [29]

The kite is symmetric about line segment BD.
Therefore
AB = BC
3x + 1 = 22
3x = 22 - 1 = 21
x = 21/3 = 7

Similarly,
AD = CD by symmetry
Therefore
4x = CD
4*7 = CD
28 = CD, the required line segment

Answer: 28

4 0

3 years ago

Read 2 more answers

The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes)

saw5 [17]

Answer: $19.6

Step-by-step explanation:

Linear function: f(x)=mx+c

, where m= rate of change in f(x) with respect to x.

c = Initial value.

Let c = Initial value of card , m= Charge per minute

x= Number of minutes calling time.

Then, 25.06= 38m+c (i)

21.03=69m+c (ii)

Eliminate (ii) from (i)

$4.03=-31m\\\\\Rightarrow\ m=\dfrac{4.03}{-31}\\\\\Rightarrow\ m=-0.13$

Put m in (i) , we get

$25.06= 38(-0.13)+c\\\\\Rightarrow\ 25.06=-4.94+c\\\\\Rightarrow\ c=25.06+4.94\\\\\Rightarrow\ c=30$

i.e. f(x)=-0.13x+30

if x=80 then

f(80)= -0.13(80)+30

=-10.4+30

=19.6

Hence, the remaining credit after 80 minutes of calls = $19.6

7 0

3 years ago