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shtirl [24]
3 years ago
5

Picture attached. help please

Mathematics
2 answers:
Alinara [238K]3 years ago
7 0
A IS ALSO WITH D AND F
Iteru [2.4K]3 years ago
4 0

Answer:

A, D, F.

Step-by-step explanation:

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X + 3y = 14<br><br>-5x + 6y = -28<br><br><br>Solve systems by substitution
mote1985 [20]

Rearrange the first system to get x = -3y + 14. Substitute that into the other system.

-5x+6y=-28\\\\-5(-3y+14)+6y=-28\\\\15y-70+6y=-28\\\\15y-70+6y=-28\\\\21y-70=-28\\\\21y=42\\\\y=2

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4 0
3 years ago
Find the diameter of a circle whose circumstance is 87.92 km. Use 3.14 for Pi.
sineoko [7]

28 km

We calculate the circumstance by multiplying the diameter by Pi. Therefore to get the diameter we need to devide the circumstance by Pi

7 0
3 years ago
Help please
dolphi86 [110]
This is a linear programming question
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while x is n, y is r
and u may find out all of the integral values of x ,y in the required region, and sub them to 6450x+7150y=c, where c is the overall customers number, see which point give u the largest number of customers, u may get the ans then

7 0
3 years ago
10 pts
VLD [36.1K]
I think the answer is 3/5
6 0
4 years ago
Danny earns a monthly allowance of twenty dollars and extra seventy five cents every time he is nice to his mom. Avery earns a m
Lerok [7]

Answer:

Danny: y-=.75x+20

Avery: y=1.25x+18

Step-by-step explanation:

To write a system of equations, it usually equals y=mx+b. Since Danny and Avery both earn the set monthly allowance of 20 and 18 dollars respectively, those numbers go on the variable b since it's a set amount and they start off with that amount of money if they weren't nice to their mom at all.

Since we are trying to find the overall amount of money, let y=total money a child earns every month and x=how many times the child is nice to their mother.

The extra .75 cents Danny earns go under the variable m because it is dependent on how many times he is nice to his mom. Along with Avery.

4 0
3 years ago
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