3 years ago

400

Mathematics

1 answer:

Feliz [49]3 years ago

7 0

Answer:

Step-by-step explanation:

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A x 4 = E B ÷ 4 = E C + 4 = E D - 4 = E & A + B + C + D = 100 Challenge what is the value of E ?

pentagon [3]

4A = E , A=E/4-----(1)

B/4=E , B=4E-------(2)

C+4=E, C=E-4------(3)

D-4=E, D=E+4------(4)

Substitute all values in 5th equation,

A+B+C+D=100 = E/4 + 4E + E-4+ E+4 =100

E/4 + 6E = 100

25E = 400

E=16 ANS....

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3 years ago

Ordered pairs: {(4, -2), (0, 6), (2, 8)}

denis23 [38]

Answer:

Step-by-step explanation:

the first values represent the inputs, which are the x values and the other values are the outputs which are the y values

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2 years ago

Ethan spent 12.5% of the money in his pocket on dinner. His dinner cost $15.25. How much did he have in his pocket? Group of ans

Tju [1.3M]

Answer:

$122

Step-by-step explanation:

Let total money in his pocket = $ x

12.5% of x = $ 15.25

$\frac{12.5}{100}*x= 15.25$

Multiply both sides by 100

12.5 *x = 15.25*100

125.5 *x = 1525

Divide both sides by 125.5

$x = \frac{1525}{12.5}\\\\$

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3 years ago

Plz help I might get a F A marching band has 4 rows of trumpets with 10trumpeters in each row.how many trumpeters are in the mar

solmaris [256]

4(10)
an unknown amount of trumpeters.
the answer is 40.

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3 years ago

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2. If AB = 9x - 2 and BC = 6x + 13, then BC = ? A B С

vovangra [49]

Answer:

AB = 9x - 2
BC = 6x + 13

Since both have equal length

9x - 2 = 6x + 13

9x - 6x = 13 + 2

3x = 15

x = 15/3

x = 5

Length of BC = 6(5) + 13 = 43 cm

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3 years ago

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