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natta225 [31]
3 years ago
11

Emily’s mother is 4 times as old as Emily now in 6 years Emily’s mother will be 3 times as old as Emily will be then how old is

Emily now?
Mathematics
2 answers:
mote1985 [20]3 years ago
7 0

Answer:

mother=m

e=emily

m=4e

m+6=3(e+6)

substitute the first equation into the second.

4e+6=3(e+6)

4e+6=3e+18

4e=3e+12

e=12

Emily is currently 12 years old.

frosja888 [35]3 years ago
7 0

Answer:

12 years old.

Step-by-step explanation:

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Gunther invested $10,000 in two mutual funds. One of the funds rose 6% in one year and the other rose 9% in one year. If his inv
mote1985 [20]

Answer:

$7200 in the fund rose 6% n $2800 in the fund rose 9%

Step-by-step explanation:

let x be the amount in the fund rose 6%

gain in one year=x*6%=0.06x

total amount is 10000

so amount in the fund rose 9% = 10000-x

gain in one year=(10000-x)*9%=900-0.09x

total gain=0.06x+900-0.09x=900-0.03x

=684

900-684=0.03x

0.03x=216

x=7200

the other fund amount=10000-7200=2800


5 0
3 years ago
Read 2 more answers
Assume that military aircraft use ejection seats designed for men weighing between 141.8 lb and 218 lb. If​ women's weights are
Mariulka [41]

Answer:

P(141.8

And we can find this probability with this difference and using the normal standard table:

P(-0.639

Then the answer would be approximately 55.3% of women between the specifications. And that represent more than the half of women

Step-by-step explanation:

Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:

X \sim N(173.6,49.8)  

Where \mu=173.6 and \sigma=49.8

We are interested on this probability

P(141.8

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(141.8

And we can find this probability with this difference and using the normal standard table:

P(-0.639

Then the answer would be approximately 55.3% of women between the specifications. And that represent more than the half of women

8 0
3 years ago
I dont understand this
mylen [45]

Answer:

ye me too i cant answer thay

3 0
3 years ago
a model plane has a scale of 1 in: 2 ft. if the real plane is 12 ft tall then how tall is the model plane.
adelina 88 [10]

Answer:

6ft tall

Step-by-step explanation:

Given we know that the scale is 1 in 2ft.

Using this information we know we could divide 12/2=6. We also know that we could multiply 2×6=12. Therefore, we know that the model plane is 6ft tall.

I hope this helps!

3 0
3 years ago
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In your path class, 60% of the student are girls. If there are 15 girls in the class, how many students are in your math class?
xxMikexx [17]
25 students in class
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3 years ago
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