If 'x' = -1
Your problem becomes 4(-1)3 + 2
-4(3) = -12
-12 + 2 = -10
Your answer would have to be: -10 (option B.)
⚠Just Do ⚠
P- Parentheses
E- Equation
M- Multiplication
D- Division
A- Addition
S-subtraction
Good Luck
Step-by-step explanation:
Let the larger number be y and the smaller be x.
All you need to do is convert the English statements to mathematical statements.
y = 3x – 1 /the larger of two numbers is 1 less than 3 times the smaller number/
2x + y = 18 + y /if twice the smaller number is increased by the larger number, the result is 18 more than the larger number/
Solve the second equation.
2x + y = 18 + y
2x = 18
x = 9
Then substitute the value of x in the first equation.
y = 3x – 1 = 3(9) – 1 = 27 – 1 = 26
We are given the equation we just have to plug in the numbers
8 + 2 * 3 + 3 * 4
8 + 6 + 12
26
Your answer is 26 trees
Answer:
12 is thy number lol
Step-by-step explanation:
1/2x + 3 = 5 - 2/3x
Subtract the 1/2x
You get 3 = 5 - 1/6x
Subtract the five.
-2 = -1/6x
Multiply by -6
x = 12
So I think maybe the example for the first problem created some confusion, and you may want to have your child take another look.
If we numbered the top half 1 to 9 going from left to right, numbers 1, 2, 6, 7 and 8 are right. They worked because the top number (numerator) perfectly fit into the bottom number (denominator). This is not true for the rest.
The key is to find the largest number that you can think of that will go into BOTH the top and the bottom evenly.
So for number 3: 18/24; 18 does not fit evenly into 24. The highest number that will fit into both is 6, so you divide both top and bottom by 6 and your answer is 3/4.
Number 4: 45/54; the highest number that goes into both is 9, so you divide both top and bottom by 9 and your answer is 5/6.
Number 5: 55/66; the highest number that can go into both is 11, so the answer is 5/6.
Is this making sense?
The bottom, numbering 1 to 9 from left to right. The correct ones are 1, 6 and 9.
For 2: 14/41 is about 15/40. Both can be divided by 5, so the answer is 3/8.
For 3: 20/81 is about 20/80, and 2/8 is close, but can still be divided by 2, so the answer is 1/4.
For 4: 24/49 is closer to 25/50 than 20/50. 25/50 can be divided by 25, so the answer is 1/2.
For 5: it was all correct, but the answer can be further reduced from 2/8 to 1/4.
For 7: 23/72 is about 25/75, and 25 goes into both, so it reduces to 1/3.
For 8: 13/21 is about 15/20, and 5 goes into both, so the answer is 3/4.
As your child continues to learn this, remember that if he or she gets an answer like 2/6 or 6/12, they should ask themselves if they can further reduce the fractions- 2/6 reduces to 1/3, and 6/12reduces to 1/2. I know it's confusing, but they do get the hang of it with practice