3 years ago

What is 7:x=2:3 Solve for x

Mathematics

1 answer:

geniusboy [140]3 years ago

5 0

Answer:

10.5

Step-by-step explanation:

Step 1:

7 : x = 2 : 3 Equation

Step 2:

2x = 21 Multiply

Step 3:

x = 21 ÷ 2 Divide

Answer:

x = 10.5

Hope This Helps :)

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jolli1 [7]

Answer:

The dimensions on the scale drawing would be 1 inch by 0.8 inches.

The scale is 1 in: 10 ft; since the actual width of the deck is 10 ft, then it will be 1 inch on the scale. To find the width:

1/10 = x/8

Cross multiply:

1*8 = 10*x

8 = 10x

Divide both sides by 10:

8/10 = 10x/10

0.8 = x

The width on the scale drawing will be 0.8 inches.

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2 years ago

Find the sum: (3x2 + 5x − 8) + (5x2 − 13x − 5)

musickatia [10]

Answer:

$(3x^2+5x-8)+(5x^2-13x-5)=8x^2-8x-13$

Step-by-step explanation:

The given polynomials are,

$3x^2+5x-8,5x^2-13x-5$

In polynomial addition and subtraction only like terms can be added or subtracted.

So,

$=(3x^2+5x-8)+(5x^2-13x-5)$

$=3x^2+5x-8+5x^2-13x-5$

$=3x^2+5x^2+5x-13x-8-5$

$=8x^2-8x-13$

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2 years ago

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Is -18x - 7 equal to -6(3x - 7)?

adoni [48]

Answer:

Step-by-step explanation:

-18-7 is not equal to -6(3x-8) beacuse

-6(3x-8)= -18x+42

its obivous that the two values are not same

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2 years ago

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Write the standard form of the equation:<br> Slope= 3 y-intercept= -1

Amiraneli [1.4K]

Answer:

y=3x-1

Step-by-step explanation:

y=mx+b

y=3x+b

y=3x-1

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2 years ago

Arun bought a pair of skates at a sale where the discount given was 20%. If the amount he pays is Dhs.4000, find the marked pric

vekshin1

B dhs.3200

because 10% of 4000=400
20%=800
4000-800=3200

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2 years ago