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vladimir1956 [14]
3 years ago
14

Help

Mathematics
1 answer:
lara31 [8.8K]3 years ago
7 0

Answer : Let Natalie's age be x. Let Fred's age be y. Add​ Fred's age to 3 times​ Natalie's age, the result is 65. Answer : Natalie is 13 years old and Fred is 26 years old.

Step-by-step explanation:

so sorry is wong

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Someone answer these
aksik [14]

Answer:

1. 8.5 x 10^8

2. 93/10000 - 4 x 10^12

3. 9.95 x 10^12

Step-by-step explanation:

3 0
3 years ago
(-8)+8-(-7)<br><br> answer? please help
Dima020 [189]
-8 and +8 equal 0 since they cancel out. It's basically 8-8. So that leaves you with 0-(-7). The two negatives make a positive, now you're left with 0+7=7. Your answer is 7. Hope this helps :)
7 0
3 years ago
Read 2 more answers
A test driver has to drive a car on a 1-mile track for two rounds in a way, that his average speed is 60 mph. On his first round
Darya [45]

(40+x)/2=60

40 +x = 120

x = 80


check :

40+80 = 120

120/2 = 60

 so his second round needs to be 80 mph

3 0
3 years ago
Suppose a birth defect has a recessive form of inheritance. In a study population, the recessive gene (a) initially has a preval
BabaBlast [244]

Answer:

Step-by-step explanation:

a) Maternal gene = 0.25; Paternal gene = 0.25

Probability having a birth defect = 0.25 X 0.25 = 0.625

b) P(A) = 0.30; P(B) = 0.70

P(A)*P(B) = 0.30 X 0.70 = 0.021

For marriage:

25%: P(A)*P(A)*0.25 = 0.09 X 0.25 = 0.0225

65%: P(B)*P(B)*0.65 = 0.049 X 0.65 = 0.03185

10%: P(A)*0.10 = 0.03 and P(B)*0.10 = 0.07

P(A)*P(B) = 0.03 X 0.07 = 0.0021

Probability of a defect birth in the next generation = 0.0225 + 0.03185 + 0.0021 = 0.05645

c) 1. P(A)*P(A) = 0.09

2. P(B)*P(B) = 0.049

3. P(A)*P(B) = 0.021

4 0
3 years ago
If p and q are integers, then this problem is true: -( -p/-q) True or False?
GREYUIT [131]

♡Answer:♡

<em>I think true not sure..</em>

♡Step-by-step explanation:♡

♡ ∩_∩

(„• ֊ •„)♡

┏━∪∪━━━━┓

♡ good luck 。 ♡

┗━━━━━━━┛

7 0
3 years ago
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