Answer:
x=6
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
1/10(x+34)=−2(4−x)
(1/10)(x)+(1/10)(34)=(−2)(4)+(−2)(−x)(Distribute)
1/10x+17/5=−8+2x
1/10x+17/5=2x−8
Subtract 2x from both sides.
1/10x+17/5−2x=2x−8−2x
−19/10x+17/5=−8
Subtract 17/5 from both sides.
−19/10x+17/5−17/5=−8−17/5
−1910x=−57/5
Multiply both sides by 10/(-19).
10/−19)*(−19/10x)=(10/−19)*(−57/5)
x=6
Answer:
A. -15
Step-by-step explanation:
First, ignore the negative sign and simply pretend the problem is asking for the product of 3 and 5.
When multiplying a by b, it's essentially the same as adding a to itself b times. Here, we multiply 3 by 5, so add 3 to itself 5 times: 3 + 3 + 3 + 3 + 3 = 15.
Now, look at the negative sign. When we multiply two numbers of different signs (one is negative and one is positive), the result is always negative. However, when we multiply two numbers of the same sign (either both positive or both negative), the result is always positive.
Here, we have one negative and one positive, which means the result should be negative. So, add a negative sign to 15 to get -15.
The answer is A.
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Answer:
y = 250x +5000
Step-by-step explanation:
The "initial" enrollment is 5000, when x=0 years after 1960.
The rate of change of enrollment is ...
change of enrollment / change in time
= (15000 -5000)/(2000 -1960)
= 10000/40 = 250 . . . . students per year
Then the desired equation is ...
y = 250x + 5000
Answer:
c. (6,1)
Step-by-step explanation:
Add both x and both y (11+1)=12 (5+-3)=2 then divide both by 2
(6,1)
