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bearhunter [10]
3 years ago
8

John is twice as old as her sister Jane. Four years ago, John was three times as old.

Mathematics
1 answer:
kramer3 years ago
7 0
x-Jane\\2x-John\\\\x-4-Jane\ (4\ years\ ago)\\2x-4-John\ (4\ years\ ago)\\\\2x-4=3(x-4)\\2x-4=3x-12\ \ \ /+4\\2x-4+4=3x-12+4\\2x=3x-8\ \ \ /-3x\\2x-3x=3x-3x-8\\-x=-8\ \ \ /\cdot(-1)\\x=8\\\\2x=2\cdot8=16\\\\\\Answer:John's\ current\ age\ is\ 16\ years.
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In the right triangle shown, m∠V=60°m, and angle UV=18 how long is UW?
Evgen [1.6K]

Answer:

Step-by-step explanation:

Check attachment for solution

So, I believed the first case is correct since it gave us one of the option, then, the answer is D.

9√3.

So, UW  = 9√3

4 0
3 years ago
−1 ≤ x/-4 − 3<br><br>Solve the inequality. Show all steps.
makkiz [27]

Answer:

≤ − 8

Step-by-step explanation:

-1 ≤ \frac{x}{-4} -3

4 ×(-1) ≤ 4 × \frac{x}{-4} -4×3

-4 × (-1) ≤ -x - 4×3

-4 ≤ -x - 12

x ≤ -12 + 4

x ≤ -8

4 0
2 years ago
. Which volume-to-surface-area ratio would be better for an ice cube— the lowest possible or the highest possible? Use the table
Oxana [17]

The volume-to-surface-area ratio would be better for an ice cube is the highest possible one.

<h3>How to explain the volume?</h3>

When you put ice into your drink, the goal is to have the ice chill your drink. This takes time. Therefore, you would want the ice to slowly melt and cool the drink for as long as you can.

You would want to have the highest possible volume to surface area ratio in an ice cube. If your ice cube is mostly surface area with less volume, it will melt quickly and water down your drink. If your ice cube has a higher ratio of volume to the surface area, it will stay solid longer and chill your drink longer.

Learn more about volume on:

brainly.com/question/1972490

#SPJ1

4 0
2 years ago
(a) Write 14 as a decimal.​
Yuliya22 [10]

Answer:

0.14

Step-by-step explanation:

14% describes 14 out of 100. It is written as 14 in the numerator and 100 in the denominator of a fraction. A percent is always written as the number over 100 as a fraction. “Out of 100” refers to the decimal place “hundredths.” 14% is 14 hundredths.

3 0
3 years ago
Adam wrote a check for $38 to pay his monthly gas bill, but when balancing his checkbook, he accidently recorded it as a credit
Alex73 [517]
It would be $76 over, I hope this helps.
7 0
3 years ago
Read 2 more answers
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