3 years ago

9. What is 999 x 4 =

Mathematics

2 answers:

zimovet [89]3 years ago

7 0

999 x 4 equals 3,996

Veronika [31]3 years ago

3 0

999*4=3996 if this helps any

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I think it's D. The area of A is k2 times the area of rectangle B

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During the basketball season,Josh pitched to 270 batters. he struck out 70% how many batters did he strike out

never [62]

Josh struck out 189 batters.

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A delivery person uses a service elevator to bring boxes of books up to an office. The delivery person weighs 140 lb and each bo

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3 years ago

(Pls help) I need help finding x!

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x ≈ 46°

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3 years ago

The price of 10 citrons and 7 fragrant wood apples is 55 units. The price of 7 citrons and 10 fragrant wood apples is 64 units.

a_sh-v [17]

Price of one citron = 5 units

Price of one fragrant = 5/7 units = 0.71 units

Further explanation:

Let x be the price of one citron and

y be the price of one fragrant

Then according to given statement

10x+7y = 55 Eqn 1

7x+10y = 64 Eqn 2

Multiplying equation 1 by 7

$7(10x+7y) = 7(55)\\70x+49y=385$

This will be equation 3.

Multiplying equation 2 by 10

$10(7x+10y) = 10(64)\\70x+100y=640$

This will be equation 4.

Subtracting equation 3 from equation 4

$70x+100y - (70x+49y) = 640-385\\70x+100y-70y-49y = 255\\51y = 255\\\frac{51x}{51} = \frac{255}{51}\\x = 5\\Putting\ x=5\ in\ equation\ 1\\10(5)+7y = 55\\50+7y = 55\\7y = 55-50\\7y = 5\\\frac{7y}{7} =\frac{5}{7}$

So,

Price of one citron = 5 units

Price of one fragrant = 5/7 units = 0.71 units

Keywords: Linear Equations, Solving system of linear equations

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago