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3 years ago

Mathew ran 3/8 mile and then walked 7/10 mile which pair of fractions can he use to find how far he went in all

Mathematics

1 answer:

jeka57 [31]3 years ago

5 0

Answer:

15/40 and 28/40

Step-by-step explanation:

3/8 = 15/40

7/10 = 28/40

15+28=43

1 3/40

(I wasn't sure what the question really wanted)

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Need help with number 4 and number 6

Ann [662]

Answer:

4. x=14.1 mi 6.x=8r3 km

Step-by-step explanation:

3 0

4 years ago

Burka [1]

Answer:

Step-by-step explanation:

$F \alpha \frac{1}{d^{2} }$

$F = \frac{K}{d^{2} }$

When F = 18; d = 2

$18 = \frac{K}{2^{2} }$

$18 = \frac{K}{4}$

Cross multiply;

18 x 4 = K

72 = K

There the equation connecting F and $d^{2}$ is

$F = \frac{72}{d}$

Now, Find F when d = 6

All you do is to substitute d = 6 in to $F = \frac{72}{d}$

$F = \frac{72}{6}$

Therefore;

F = 12

Please mark me brainiest if correct.

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3 years ago

Which equation has a solution of k = 6.5?

olga_2 [115]

Answer:

-7k = -45.5

Explanation:

You can solve this by plugging in the “k” to the problems that are listed.
If you were to plug 6.5 in for all those problems, you’d get:

-3(6.5) = -19.5

-1 + 6.5 = 5.5

-7(6.5) = -45.5

-2 + 6.5 = 4.5

So, in this case, looking at the ones I answered and looking at the problems listed, the correct answer would have to be -7k = -45.5.

4 0

3 years ago

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the most abundant element in earth’s continental crust, by weight, is _____. calcium silicon iron oxygen

Lelechka [254]

<span>The most abundant element in earth’s continental crust by weight is Oxygen</span>

7 0

3 years ago

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How do I finish this problem? I keep getting stumped here

prisoha [69]

I believe you would Add like terms so 4x^2-4x-3