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AVprozaik [17]
3 years ago
13

Write an equation in form for each line passes through (-4,-5), slope=3/4

Mathematics
1 answer:
aivan3 [116]3 years ago
6 0

set the equation of the function to y=kx+b

Slope = 3/4 means k=3/4

we get: y = 3/4x+b

plug (-4,-5) to the function

-5=-3+b

b=-2

so: y = 3/4x-2

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The cost of 5 cans of dog food is 4.35. At this price ,how much do 11 cans of dog food cost
Setler [38]

Answer:

$9.57

Step-by-step explanation:

You have to do 4.35 divided by 5 to get how much 1 can cost. You will find out that 1 can cost $0.87. Next you will take how much one cost and mutiply it by 11.  When you do that you will get 9.57. That is how you will get $9.57 as your answer.  

5 0
3 years ago
C2 = 39<br><br> (c squared) <br><br> please help :(
iVinArrow [24]

<em>Answer:</em>

<em></em>\boxed{c = \sqrt{39} / c= - \sqrt{39} }<em></em>

<em>This " / " means or, btw!</em>

<em>Step-by-step explanation:</em>

<em></em>c^2 = 39<em></em>

<em>⇒Take square root.</em>

<em></em>c =<em> ± </em>\sqrt{39}<em></em>

<em></em>c = \sqrt{39}<em> or </em>c = -\sqrt{39}<em></em>

<em>Hope this helped you!</em>

7 0
3 years ago
Need help due tomorrow plz help!!
Sonbull [250]
1.) B

because it says the person buys a ski for 350. He puts down $110 which means to subtract. Now he got a discount which also means to subtract. Then it told that he gave 1/2 them money to his mother. So that too means to subtract. 

2.) 2+5n

because it says 2 plus 5 times a number. So 2+5×n 
6 0
3 years ago
Choose all the fractions that are equivalent to1/7. (Click all that apply.)
Alchen [17]

Answer:

2/14, 4/28, 5/35, 7/70 or just 2/14

Step-by-step explanation:

Multiply both the numerator and denominator of 1/7 by 2, to get 2/14, or 2:14

And multiply the numerator and denominator of 1/7 by 3, to get 3/21, or 3:21. So 2:14 and 3:21 are two ratios that are equal to 1:7.

8 0
3 years ago
A tutor work with 3 students. The oldest student is 6 years oldder then the middle student, and the youngest student is 3 years
Dennis_Churaev [7]

Answer:

9 years old.

Step-by-step explanation:

Since the ages of all of these students are being represented in relation to the middle student's age then we can create formulas for each student and then apply them to the formula for the sum of their ages and solve for the middle child's age (M) like so... (oldest child's age is represented by variable O and youngest child's age is represented by variable Y)

O = M + 6

Y = M - 3

30 = (M+6) + M + (M-3)  ... combine like terms

30 = 3M + 3  ... subtract 3 from both sides

27 = 3M  ... divide both sides by 3

9 = M

Now we know that the middle child is 9 years old.

6 0
2 years ago
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