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Leona [35]
2 years ago
8

Joshua is five years older than David. Simon is four years older than Joshua and nine years older than David. Simon’s and David’

s ages added together equal 15. How old are the boys?
Mathematics
1 answer:
Tasya [4]2 years ago
8 0
David's age: x
Joshua: x + 5
Simon: (x+5) + 4 or x + 9

Simon's age + David's age = 15
(x+9) + (x) = 15
2x = 15 - 9
2x/2 = 6/2
x = 3

The ages of the boys:

David: x = 3 years old
Joshua: 3+5 = 8 years old
Simon: 3+9 = 12 years old



Read more on Brainly.ph - https://brainly.ph/question/1602102#readmore
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timurjin [86]

Answer:

A: 6x⁸y⁵

B: 4x⁵z⁸

C: 48a¹²b⁵

D: 6s⁹t³

Step-by-step explanation:

When you multiply 2 exponents together, you add them. When you power an exponent, you multiply the 2 exponents together,

3x²2y⁴(2x⁶y)

6x⁸y⁵

xz³(4x⁴z⁵)

4x⁵z⁸

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16a⁶(3a⁶b⁵)

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3 0
2 years ago
The flathead rail tunnel in Montana is about 7 3/4 miles long. A train travels at a speed of 3/4 mile per mile minute.how long w
kogti [31]
7 3/4 × 3/4 = So u add 3×3=9
Then add 4×4=16 Give you 9/16
Then you add that 7 you left out with 9/16
But just the 9 not the 16
7 × 9 = 63 And your answer is 63/16
Hope i help :-)
5 0
2 years ago
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Find the measure of each indicated angle
Anna007 [38]
I think the answer would be 24 but im not 100% sure

7 0
1 year ago
At the amusement park, Laura paid $6.00 for a small cotton candy. Her older brother works at the park, and he told
BabaBlast [244]

Answer:

yes

The price of marked up candy is $6.00

perentage of mark up is 300%

let the marked up amount be represented as x

let 300% mark up be represented as 3x

the equatiopn for finding the price before markup

can be represented as 3x-x=$6.

                                    2x=$6

                                    x=$3.

8 0
2 years ago
on monday on Monday the water was shut off 3 times for 1/4 hours 2/3 hours and 1 3/4 hours what was the total number of hours th
kirza4 [7]

Answer:

2 2/3 hours

Step-by-step explanation:

1/4 + 2/3 + 1 3/4 common denominator is 12

3/12 + 8/12 + 21/12 = 32/12 = 2 8/12 = 2 2/3 hours

4 0
2 years ago
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