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Vsevolod [243]
2 years ago
13

What is the value of ( 7 plus 2 cubed) x 9

Mathematics
2 answers:
butalik [34]2 years ago
4 0

Answer:

135

Step-by-step explanation:

(7 + 2 {}^{3} ) \times 9 \\  = (7 + 8) \times 9 \\  = 15 \times 9 \\  = 135

gizmo_the_mogwai [7]2 years ago
3 0

Answer:

135

Step-by-step explanation:

2 cubed=8

8+7=15

15x9=135

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The length of the hypotenuse of a right triangle is 16 inches. If the length of one leg is 5 inches, what is the approximate len
Musya8 [376]

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15.2 inches

Step-by-step explanation:

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7 0
2 years ago
AFLATI 2 NUMERE STIIND CA AL DOILEA NUMAR ESTE DE 7 ORI MAI MARE DECITPRIMUL IAR SUMA DINTRE DUBLUL PRIMULUI NUMAR SI TRIPLUL CE
postnew [5]

Answer:

The numbers are 20 and 140

Step-by-step explanation:

<u><em>The question in English is</em></u>

Find 2 numbers knowing that the second number is 7 times greater than the first, and the sum between the double of the first number and the triple of the second is 460

Define the variables

Let

x ----> the first number

y ----> the second number

we know that

y=7x -----> equation A

2x+3y=460 ----> equation B

Solve the system of equations by substitution

Substitute equation A in equation B

2x+3(7x)=460

solve for x

2x+21x=460

23x=460

x=20

<em>Find the value of y</em>

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The numbers are 20 and 140

6 0
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