3 years ago

Plz help :D 7th grade math

Mathematics

2 answers:

Mashutka [201]3 years ago

4 0

Answer:

The answer is 8.15

Step-by-step explanation:

mr Goodwill [35]3 years ago

3 0

8.15 is your answer

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Can you use simplest form to compare 8/10 and 3/5 explain

jolli1 [7]

Simplify 8/10
(4*2)/(5*2)
2/2=1

Thus,
8/10=4/5

Now, compare 4/5 and 3/5.
Hope this helps!

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3 years ago

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The half-life of a radioactive substance is the time required for half of a sample to undergo radioactive decay,or for the quant

NikAS [45]

Answer:

That's two half lives. 5/8 * 2 * 2 = 20/8 = 5/2 pounds7/8 * 2 * 2 = 28/8 = 7/2 pounds

Step-by-step explanation:

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3 years ago

Find sum or difference. 1/6 + 3/8 A. 4/6 B. 4/8 C. 4/14 D. 13/24

Vaselesa [24]

1/6 + 3/8
= 4/24 + 9/24
= 13/24

answer
D. 13/24

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3 years ago

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A plane is flying from Albuquerque new Mexico to Austin Texas so far it has flown 161 miles or 23% of the total distance of the

Karo-lina-s [1.5K]

Answer: 700 miles.

Step-by-step explanation:

1. You know that 23% of the total distance of the flight from Albuquerque New Mexico to Austin Texas is 161 miles.

2. Then, keeping that information on mind, you can calculate the total distance of the flight (which you call $x$ ) as following:

$\frac{161miles}{23\%}=\frac{x}{100\%}$

Solve for $x$ . Then, you obtain that the result is:

$x=\frac{161miles*100\%}{23\%}\\x=700miles$

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3 years ago

Solve for x 14 x square+7x-6

irina [24]

Answer:

x=0.450765 or x=−0.950765

Step-by-step explanation:

14x² + 7x - 6

→ Find the product, sum and factors

Product = -6

Sum = 7

Factors = No factors

→ Since there are no factors utilise the quadratic formula

$\frac{-b+-\sqrt{b^{2}-4ac } }{2a}$

→ List the values of a, b and c

a = 14

b = 7

c= -6

→ Substitute into the formula

$\frac{-7+-\sqrt{7^{2}-4*14*-6} }{2*14}$

→ Simplify

x=0.450765 or x=−0.950765

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4 years ago

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