I think the answer is 7 because when you multiply 7 times 2 = 14 you add it by 5 = 19
This student is incorrect because there is no number that you can multiply by 2 to get 5. Therefore, the proper point would be (1, 5) as the equation is setup as x+2y=5, so x must equal 1, and y must equal 2. Now to check if its correct:
1+2(2)=5
2x2=4
1+4=5
It is correct, so the answer is (1, 5)
Addition of fractions with unlike denominators: 3/10 + 1/6 = 7/15
Subtraction of fractions with unlike denominators: 7/8 - 5/6 = 1/24
<u>Step-by-step explanation</u>:
"Unlike denominator" is said to have different numbers in the denominator.
- Change the unlike denominators to like denominators by finding the least common multiple (LCM) of the denominators.
- Now multiply the numerator and denominator with same number that gives the LCM in the denominator.
- Add or subtract the numerators according to the operator given, but do not perform any operation in the denominators.
<u>Addition of fractions with unlike denominators</u>:
⇒ Add 3/10 and 1/6.
⇒ Taking LCM 2 |<u>10 6</u>
<u>|5 3 </u>
⇒ The LCM is 253 = 30.
⇒ 3/10 + 1/6 = (33)/(103) + (15)/(65)
= 9/30 + 5/30
= 14/30 = 7/15
<u>Subtraction of fractions with unlike denominators</u>:
⇒ Subtract 7/8 and 5/6.
⇒ Taking LCM 2 <u>|8 6</u>
<u>|4 3 </u>
⇒ The LCM is 243 = 24.
⇒ 7/8 - 5/6 = (73)/(83) + (54)/(64)
= 21/24 - 20/24
= 1/24
Answer:
NO
Step-by-step explanation:
Answer:
x = 3
Step-by-step explanation:
According to Euclidian theorem (x+9)^2 = 18*8
(x+9)^2 = 144 find the root for both sides
x + 9 = 12 subtract 9 from both sides
x = 3