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Gwar [14]
3 years ago
11

Solve the system of equations x+2y=6 3x+8y=4 Which is the y-value of the solution

Mathematics
1 answer:
Alja [10]3 years ago
6 0

Answer:

(20,-7)

Step-by-step explanation:

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Lincoln went to the grocery store and purchased cans of soup and frozen dinners. Each can of soup has 250 mg of sodium and each
Ludmilka [50]
We can solve with a system of equations, and use c for the amount of cans of soup and f for the amount of frozen dinners.


The first equation will represent the amount of sodium. We know the (sodium in one can times the number of cans) plus (sodium in one frozen dinner times the number of dinners) is the expression for the total sodium. We also know the total sodium is 4450, so:


250c + 550f = 4450


The second equation is to find how many of each item are purchased:


c + f = 13


Solve for c in the second equation:


c = 13 - f


Plug this in for c in the first equation:


250(13-f) + 550f = 4450


3250 - 250f + 550f = 4450


300f = 1200


f = 4


Now plug the value for f into the second equation:


c + 4 = 13


c = 9


The answer is 9 cans of soups and 4 frozen dinners.


6 0
3 years ago
Read 2 more answers
I need help on these please, also explain how you got the answer please ♡
SIZIF [17.4K]
27. N > -1
29. T < 2
31. K= -12
33. 30= 4m + 2
Answer: m = 7
7 0
3 years ago
A circular garden is enlarged so that the new diameter is twice the old diameter. What is the ratio of the original area to the
Amanda [17]

Answer:

  • Explained briefly below.

Step-by-step explanation:

<u>For old circular garden:</u>

take the radius as r.

then use the formula to find area of circle: πr² ......this is old garden area.

<u>For new enlarged garden:</u>

the radius is twice the old radius so, radius = 2 * r = 2r ......enlarged radius

now find area for this new garden:  π(2r)² → 4πr²

In common fractions: (old garden)/(new garden)

                                : ( πr² ) / ( 4πr² )

                                 :    1/4

7 0
2 years ago
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Miller has a painting that is 4 ft by 8 ft. What will the dimensions of the painting be if he scales it down by a factor of 1/4
Zarrin [17]

Answer:

3 ft by 6ft

Step-by-step explanation:

Divide both dimensions by 4 then subtract that from the original

6 0
3 years ago
Read 2 more answers
Solve for x.<br> 40 = 8(x - 10)
Aleksandr [31]

Answer:

x = 15

Step-by-step explanation:

hope this helps, have a great day/night!!

5 0
3 years ago
Read 2 more answers
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