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Leya [2.2K]
3 years ago
6

Alvin is

Mathematics
2 answers:
Vladimir [108]3 years ago
7 0
The Elga's age is 14 Analysized: when Alvin was 10, Elga was 10+x. Therefore their altogether age was 38. X+[10+X]=38
Debora [2.8K]3 years ago
6 0
The answer is 28
38-10=28
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Solve for x GraceRosalia:<br>2x + 24 = 36 - x​
horsena [70]

✱                                                         Hey There!                                                        ✱

✱ 2x+24=36-x

✱ Use the opposite operation:

✱          2x+x=36-24

✱        3x=36-24

✱              3x=12

✱                x=4

✱     Hope this helps

✱

✱

5 0
2 years ago
Mr. Jackson divided £420 between his children in the ratio of their ages, Mitch is 4 and Jo is 3
3241004551 [841]

Answer:

Mitch=60*4=240

Jo=60*3=180

Step-by-step explanation:

420/7=60

4 0
2 years ago
How do I find this this answer?
Viefleur [7K]

Answer:

because you are big brain

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Perpendicular Vectors:
klemol [59]
1.
v x w = 8 i - 24 j + 15 k + 10 j - 12 i - 24 k =
= - 4 i - 14 j - 9 k
Answer: D )
2.
v x w = -16 i - 16 j - 18 k + 12 j + 48 i - 8 k =
= 32 i - 4 j - 10 k
Answer: C )
3.
The cross product:
< - 6, 7, 2 > x < 8, 5, -3 > =
= - 21 i + 16 j - 30 k - 18 j - 10 i - 56 k =
= - 31 j - 2 j - 86 k = < - 31, - 2, - 86 >
Vectors are perpendicular if: cos ( u, v ) = 0
< - 6 , 7. 2 > * < -31, - 2, - 86 > = 186 - 14 - 172 = 0
< 8, 5 , - 3 > * < - 31, - 2, - 86 > = -248 - 10 + 258 = 0
Answer: A ) < - 31, - 2 , - 86 >,  yes.
3 0
3 years ago
There are 42 students 21 are in 7th grade 14 are in 8th 7 are in ninth whats the probability of an eighth grader winning
Varvara68 [4.7K]

Answer:

The probability of an eighth grader winning is 1/3

Step-by-step explanation:

Total no. of students = 42

Number of students in 7th grade = 21

Number of students in 8th grade = 14

Number of students in 9th grade = 7

Probability of event = \frac{\text{Favorable outcomes}}{\text{Total outcomes}}

So,the probability of an eighth grader winning= \frac{14}{42}=\frac{2}{6}=\frac{1}{3}

Hence The probability of an eighth grader winning is 1/3

3 0
2 years ago
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