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lara31 [8.8K]
3 years ago
13

There are 70 students in the school band. 40% of them are sixth graders, 20% are seventh graders, and the rest are eighth grader

s. How many students are eighth graders?
Mathematics
2 answers:
RSB [31]3 years ago
8 0

Answer:

420

Step-by-step explanation:

natka813 [3]3 years ago
5 0

Answer:

the answer is 420

Step-by-step explanation:

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Tony wants to buy 2.3 pounds of dried berries and 2.6 pounds of trail mix. How much will he spend?
AURORKA [14]
How much dose it cost per pound?
3 0
2 years ago
(5x4 + 5x3 + 4x - 9) + (2x4 + 7x2 + 2x + 14)
ladessa [460]

Answer:

7x⁴ + 5x³ + 7x² + 6x + 5

Step-by-step explanation:

The given expression is

(5x4 + 5x3 + 4x - 9) + (2x4 + 7x2 + 2x + 14)

The first step is to open the brackets by multiplying each term inside each bracket by the term outside each bracket. Since the term outside each bracket is 1, the expression becomes

5x⁴ + 5x³ + 4x - 9 + 2x⁴ + 7x² + 2x + 14

We would collect like terms by combining each term with the same exponent or raised to the same power. The term would be arranged in decreasing order of the exponents. It becomes

5x⁴ + 2x⁴ + 5x³ + 7x² + 4x + 2x - 9 + 14

7x⁴ + 5x³ + 7x² + 6x + 5

7 0
3 years ago
. The Empire State Building is a 102-story skyscraper. Its height is 1,250 ft. from the ground to the roof. The length and width
Aleks [24]

Answer: a) Dimensions of miniature is 0.17 × 0.08 × 0.5, b) 0.006 ft³.

Step-by-step explanation:

Since we have given that

Height of building = 1250 feet

Length of building = 424 ft

Width of building = 187 ft

Now, we know that The miniature version is just 1/ 2500 of the size of the original.

So, Height of miniature would be

\dfrac{1250}{2500}=0.5\ ft

Length of miniature would be

\dfrac{424}{2500}=0.17\ ft

Width of miniature would be

\dfrac{187}{2500}=0.08\ ft

a) What are the dimensions of the miniature Empire State Building?

Dimensions of miniature is 0.17 × 0.08 × 0.5

b. Determine the volume of the miniature building. Explain how you determined the volume.

Volume=0.5\times 0.08\times 0.17=0.006\ ft^3

Hence, a) Dimensions of miniature is 0.17 × 0.08 × 0.5, b) 0.006 ft³.

6 0
3 years ago
Concesion tables contain ratios that can be used to convert units of length, weight, or capacity. You must multiply the
Aleonysh [2.5K]

Answer:

Step-by-step explanation:

yard; the ratio of feet to yards is

7 0
3 years ago
Which is the solution to the equation<br> below?<br> -3=t- 12<br> A-9<br> C 9<br> B 4<br> D 15
omeli [17]
ANSWER:
9 (C)

hope this helps
4 0
3 years ago
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