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3 years ago

Which expression is equivalent to the expression below?

Mathematics

1 answer:

cestrela7 [59]3 years ago

5 0

Answer:

Your answer is B.

Step-by-step explanation:

So you do 3x+5x-10 (cuz your multiplying) then you add the x which is 3x+5x you get 8x-10

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Circle each number that is a solution of the given inequality.

mario62 [17]

C i think I’m not 100% sure

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3 years ago

27 x 26 x 28 x 34 x 45

andreev551 [17]

27 x 26 x 28 x 34 x 45 = 30,073,680

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What is the solution to this system of linear equations?

tigry1 [53]

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3 years ago

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Mary gave her brother 1/4 of her plums and her sister 1/3 of her plums.Mary remained with 20 plums.Caluculate how many plums mar

Lorico [155]

Answer:

Step-by-step explanation:

Let x be the number plums that Mary had

Number of plums received by her brother = (1/4) of x =(1/4)x

Number of plums received by her sister = (1/3)x

Remaining plums is 20.

Total plums - (plums given to brother + plums given to sister) = 20

$x-(\frac{1}{4}x+\frac{1}{3}x)=20\\\\x-\frac{1}{4}x-\frac{1}{3}x=20\\\\\frac{1*12}{1*12}x-\frac{1*3}{4*3}x-\frac{1*4}{3*4}x=20\\\\\frac{12}{12}x-\frac{3}{12}x-\frac{4}{12}x=20\\\\\frac{12-3-4}{12}x=20\\\\\frac{5}{12}x=20\\\\x=20*\frac{12}{5}\\\\x=4*12\\\\x=48$

Number of plums with Mary = 48

Number of plums received by brother= (1/4)*48 = 12 plums

Number of plums received by sister = (1/3)*48 = 16 plums

16 - 12 = 4

Her sister received 4 plums more than her brother

5 0

3 years ago

Please help me thanks!

IrinaK [193]

Answer:

See below ~

Step-by-step explanation:

Formula for area of a triangle :

Area (triangle) = 1/2 × base × height

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

Solving :

Triangle 1 (Top Left)

⇒ Area = 1/2 × 11 × 3

⇒ Area = 33/2

⇒ Area = 16.5 in²

Triangle 2 (Top Right)

⇒ Area = 1/2 × 8 × 7.2

⇒ Area = 4 × 7.2

⇒ Area = 28.8 cm²

Triangle 3 (Bottom Left)

⇒ Area = 1/2 × (5.5 + 5) × 10.4

⇒ Area = 10.5 × 10.4

⇒ Area = 109.2 m²

Triangle 4 (Bottom Right)

⇒ Area = 1/2 × (2 + 7) × 5.5

⇒ Area = 9 × 2.75

⇒ Area = 24.75 in²

4 0

2 years ago