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kozerog [31]
3 years ago
6

Stephanie wants to buy s tomato plants.

Mathematics
1 answer:
max2010maxim [7]3 years ago
4 0

Answer:

Required Expression : 7·(s + d) - 25

Step-by-step explanation :

Cost of each plant both buys = $7

No. of plants Stephanie wants to buy = s

Total cost of plants bought by Stephanie = 7·s

No. of plants Diego wants to buy = d

Total cost of plants bought by Diego = 7·d

Total cost = 7·s + 7·d

                 = 7·(s + d)

Discount applied through coupon = $25

So, Total cost of all their plants with discount = 7·(s + d) - 25

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andrea drove 200 miles using 9 gallons of gas. At this rate, how many gallons of gas would she need to drive 420 miles?
Anika [276]

Given : Andre drove 200 Miles using 9 Gallons of Gas

⇒ Andre drives 1 Mile using [\frac{9}{200}]\;Gallons\;of\;Gas

⇒ Andre drives (420 × 1 Mile) using [\frac{420\times9}{200}]\;Gallons\;of\;Gas

⇒ Andre drives 420 Miles using 18.9 Gallons of Gas

7 0
3 years ago
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Write the product in simplest form: 3w^4 * (-5w^2)
Grace [21]

3w^{4} (-5w^{2} ) = -15w^{6}

I think this is what you want? When multiplying with exponents, you either add or multiply the exponents.

When you multiply the exponent:

(x²)³ = x^{6}

(3x^{4} )^{2} = 9x^{8}

When you add the exponents:

(x²)(x³) = x^{5}

(x²)(x²) = x^{4}

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5 0
3 years ago
Help pls thx guys photo attached
alexdok [17]

Answer:

x = 18

A = 110

Step-by-step explanation:

Angles A and B are supplementary angles so they add to 180 degrees

A + B = 180

5x+20 + 9x -92 = 180

Combine like terms

14x -72 = 180

Add 72 to each side

14x-72+72 = 180+72

14x = 252

Divide each side by 14

14x/14 = 252/14

x =18

A = 5x+20

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   = 110

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3 years ago
What is 0.4 as a percent?
Viefleur [7K]

Answer:40%

.4 is equal to 40%

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3 years ago
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