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baherus [9]
3 years ago
10

1ь - 1 1

align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
kvv77 [185]3 years ago
6 0

Answer:

For equation 21-b=11 given in the statement

the answer is b=10

Step-by-step explanation:

This is the equation: 21-b=11

If we sum '-21' to both sides of equation, we have

21-b-21=11-21, which leaves us to: -b=-10

Now lets multiply the equation from above by '-1', we obtain that b=10

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You buy a total of 25 burgers and tacos for $67.50. The burgers cost $3.50 each and the tacos cost $2.25 each. Find the number o
Ahat [919]

Answer: you bought 9 burgers and 16 tacos

Step-by-step explanation:

Let x represent the number of burgers that you bought.

Let y represent the number of tacos that you bought.

You buy a total of 25 burgers and tacos. It means that

x + y = 25

The burgers cost $3.50 each and the tacos cost $2.25 each. The total cost of the burgers and tacos that you bought is $67.50. It means that

3.5x + 2.25y = 67.5- - - - - - - - - - - - 1

Substituting x = 25 - y into 1, it becomes

3.5(25 - y) + 2.25y = 67.5

87.5 - 3.5y + 2.25y = 67.5

- 3.5y + 2.25y = 67.5 - 87.5

- 1.25y = - 20

y = - 20/ - 1.25

y = 16

x = 25 - y = 25 - 16

x = 9

5 0
3 years ago
Which input value produces the same output value for the two functions on the graph?
DiKsa [7]

Answer:

The input value is 3/4

Step-by-step explanation:

we know that

The input value that produces the same output value for the two linear functions, is the intersection point both graphs

we have

f(x)=-3x+1 ---> equation A

g(x)=x-2 ---> equation B

Equate equation A and equation B

x-2=-3x+1

solve for x

3x+x=1+2

4x=3

x=\frac{3}{4}

therefore

The input value is 3/4

5 0
3 years ago
Correct answer will get brainliest
sineoko [7]

Answer:

B 2/3

Step-by-step explanation:

it's positive 2 over 3

up two and over three

because it's rise over run

so your answer would be the 2nd option or B

I hope this helps! have a nice day/night, blessings, xx, nm <3 :)

8 0
3 years ago
How do you explain a diameter of 0.00085 inches using scientific notation
dezoksy [38]

Answer:

8.5 E^{-4} inches

Step-by-step explanation:

        Scientific scientific notation  is where the super small / super large number is multiplied by a 10 (E) to the power of a number. Here, the number is smaller than 8.5 so our power must be negative. As we are making it four "places" bigger, we use the exponent of -4.

Hope this helps, have a nice day! :D

8 0
3 years ago
Given k(x)=4x+5, if k(x)=-3 find x
zvonat [6]

Answer:

x=-5/7

Step-by-step explanation:

4 0
3 years ago
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