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Kamila [148]
2 years ago
15

10-12 please help, find the missing number and once you found the missing number and answered it you make sure it’s the solution

it gave you like 10:infinitely many solutions

Mathematics
1 answer:
irinina [24]2 years ago
6 0

10. Infinitely many solutions:

2(x-1)+6x=4(?-1)+2.

Simplify this equation:

2x-2+6x=4\cdot ?-4+2,\\ \\8x-2=4\cdot ? -2,\\ \\8x=4\cdot ?

When ?=2x, the equation becomes

8x=8x \text{ or } 0=0.

This equality is true for all x, thus the equation has infinitely many solutions.

11. The equation 5x-(x-2)=2x-(?) should have one solution x=-1.

First, simplify the equation:

5x-x+2=2x-?,\\ \\4x+2=2x-?,\\ \\2x+2=-?,\\ \\?=-2x-2.

This equation will have solution x=-1 when

?=-2\cdot (-1)-2=2-2=0.

Therefore, the initial equation is

5x-(x-2)=2x.

12. The equation -(x-8)+4x=2\cdot ?+x should have infinitely many solutions.

Simplify it:

-x+8+4x=2\cdot ?+x,\\ \\2x+8=2\cdot ?,\\ \\2(x+4)=2\cdot ?.

When ?=x+4, this equation will have infinitely many solutions.

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30 POINTS!!!
DIA [1.3K]

Answer:

She can make cookies for 4.95 weeks

Step-by-step explanation:

2 x 1 2/3 = 3.333333333

16.5/ 3.333333333 = 4.95

Since Jordan is making two batches of Cookies per week, you need to multiply 2 by the amount of resources needed to bake one batch of cookies. So you multiply 1 and 2/3 by 2 to get the amount of resources neccesary for one week of making cookies. Then, you take the full amount of resources that she has, and divide that by the amount she uses per week, that number will give you the number needed to figure out how many weeks she has to bake cookies.

To figure out the number that is being divided to get the whole number in weeks, you would take the 16.5 cups of flour. The reason why this is, is because that Is the starting number of cups that she has. So here you would need to divide the amount you are taking from it each week. This will result in the amount of weeks that she is able to bake cookies with her flour.

5 0
2 years ago
Find the area of the figure. Round your answer to the nearest tenth
expeople1 [14]

Answer:

4 in

Step-by-step explanation:

5 0
3 years ago
Why does 5x2/3 =10x1/3
lesya [120]

Answer:

yes it has

Step-by-step explanation:

The numerators of the eqations equates themselves likewise the denominator

numerators=10

denominators=3

7 0
2 years ago
Your food bill comes to $68.26. If the tax rate is 7%, calculate the amount of tax your family will pay.
romanna [79]
Food bill = $68.26
Tax rate = 7 %
Tax that will be payed = 7/100 × 68.26
= $4.78
Hope u get the answer
6 0
2 years ago
Read 2 more answers
A population of bacteria in a petri dish is modeled by the function p(x)=88x , where x is the number of hours that have elapsed
pochemuha

Answer:

3.14

Step-by-step explanation:

The answer is going to be 3.14

Hope it helps!

4 0
2 years ago
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