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otez555 [7]
2 years ago
8

LOOK AT THE PHOTO NEED HELP Number 10

Mathematics
1 answer:
Nikitich [7]2 years ago
3 0

Answer:

x=15

Step-by-step explanation:

If x is 3 and y is 21, then that means that y is 7 times the value of x (21/3=7), or y=7x.  

If y is 105, then 105=7x

105=7x

105/7=x

15=x

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I put this into my calculator but it keeps coming out as "error" :/ not sure if it's just my calculator or something with the pr
Triss [41]
Your calculator says error because you cant have a square root of a negative number because there is no solution to that maybe recheck your equation and try again
8 0
3 years ago
What is s and what is t?
stich3 [128]

Answer:

Step-by-step explanation:

S = 2

T = -2

so in S - T = 4. 2 - -2 = 4

IN S + T = 2  S + - 2 = 2

8 0
3 years ago
The quotient of two less than a number and five is eight
postnew [5]

Answer:

The number is 42.

Step-by-step explanation:

Let x be the unknown number.

"two less than a number" is x - 2

Quotient means the result of a division.

(x - 2)/5 = 8

Multiply both sides by 5.

x - 2 = 40

Add 2 to both sides.

x = 42

Answer: The number is 42.

Check.

Start with 42. 2 less than 42 is 40. The quotient of 40 and 5 is 40/5 which is 8. The answer is correct.

5 0
3 years ago
Y=x^2 + 1 why is this function nonlinear?
ELEN [110]

Answer:

Its non linear because of the x squared. This would indicate an ever increasing answer, not one that has a constant rate. This equation would be quadratic.

7 0
3 years ago
A plain pizza cost $8.35. Additional toppings cost $0.95 each. Which equation can be used to represent the cost of a pizza, y, w
Yakvenalex [24]

Answer: y=0.95x+8.35

Step-by-step explanation: Hi there.

We can use the equation y=mx+b, where

y=the result (in this case the cost of the pizza)

m=the slope (how much each topping costs)

x=input value (how many kinds of toppings the pizza has)

b=initial value (how much the plain pizza costs)

The toppings cost $0.95, and the value of the plain pizza is $8.35

So the equation is: y=0.95x+8.35.

Have a nice day! :)

7 0
3 years ago
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