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valentina_108 [34]
2 years ago
13

cody is twice as old as evan and seven years ago the sum of their age was 10. find the age of each boy now.

Mathematics
1 answer:
azamat2 years ago
4 0
Let Cody be x years old now. and y be Evan's age now.

x = 2y

x -7 + y - 7 = 10

x + y =  24 
Substitute for  x = 2y:-

2y + y = 24

y = 8   

and therefore
 x = 2*8 = 16

Answer is Cody is now  16 and Evan is 8 
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diagrams are not drawn to scale. do numbers 10 and 12. i only care about the answers & the steps to get the answers. pls don
Stella [2.4K]

10. from the question; the circle theorem obeyed is "angled formed by semi-circle"

The angle formed in a semicircle is 90 degrees, hence

m\angle XYZ=90^{\circ}

This gives

m\angle YXZ\text{ + m}\angle YZX\text{ = 90}

But

\begin{gathered} m\angle YXZ\text{ = 2x + 8} \\ m\angle YZX\text{ = 5X - 2} \end{gathered}

Substituting values we get

\begin{gathered} 2x\text{ + 8 + 5x - 2 = 90} \\ 2x\text{ + 5x + 8 - 2 = 90} \\ 7x\text{ + 6 = 90} \\ 7x\text{ = 90 -6} \\ 7x\text{ = 84} \\ \text{divide both sides by 7} \\ x\text{ = }\frac{84}{7} \\ x\text{ = 12} \end{gathered}

hence, x =12

3 0
11 months ago
What is the answer to this question?
WARRIOR [948]

Answer: Lower right corner

============================================

Explanation:

The information that the temperature rises 3 degrees per hour will tell us the slope here. The slope is rise/run = 3/1 = 3. Each time we move up 3 on the y axis, we move 1 spot to the right.

As you can see in the bottom right hand corner graph, we start off at a temperature of 20 degrees. This is the point (x,y) = (0,20)

Then one hour later (x = 1), the temperature y bumps up to y = 23. Another hour passes by (x = 2) and y becomes y = 26. And so on.

3 0
2 years ago
Pls help! On the day of the big game, 298 marching band members were waiting to get on the
elixir [45]

Answer:

here u go!

Step-by-step explanation:

each bus can fit 45 people and there are 298 TOTAL. there will be an extra bus with less than 45 people btw.

first divide 298 by 45, you will get 6.2 something. however, you CANNOT have .2 of a bus. the 6 represents 6 buses of 45 people.

now taking that 6 again, multiply it by 45. 45 x 6 = 270. we have 28 people left over, this adds an extra bus.

7 buses will be needed to get them to the game.

4 0
2 years ago
A laptop computer consumes about 20 watts of electricity per hour when operating. At 10 cents per kilowatt-hour, how much does a
Flura [38]

Step 1:

Convert the electricity per hour in kilowatts,

Electricity per hour = 20 watts

=20/1000 kilo,watts

Step 2:

The electricity consumes in 5 hour is ,

Electricity in 5 hour = 5x 20/1000 kilo watts.

Obtain the cost as,

=5x20/1000x10

=1 Cent

Answer: =1 Cent

Please mark brainliest

<em><u>Hope this helps.</u></em>

6 0
2 years ago
Thanks for the help in advance
grin007 [14]

Answer:

60

Step-by-step explanation:

6 0
1 year ago
Read 2 more answers
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