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2 years ago

Solve for k: 310 – (30 x 7) = 5 x k

Mathematics

1 answer:

tester [92]2 years ago

7 0

Answer:

k=20

Step-by-step explanation:

ph*tomath (the app) is your friend btw because this would be really easy to solve using that but

solve for k:

simplify the left side as 310-210 then =100

so 100=5k

divide by 5 and k=20

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I need to solve this to get zero can you help?

Alex

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For the required angle :

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adjacent side = 13

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5 months ago

3 more than one-half of a number is 10. What is the number?

Pani-rosa [81]

Answer:

Step-by-step explanation:

Let's call the number x.

$\dfrac{x}{2}+3=10$

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Hope this helps!

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2 years ago

Read 2 more answers

A track runner is eager to see if practicing helps her improve. She has plotted data on her weekly 100-meter dash times (s) as w

insens350 [35]

Answer:

$\displaystyle s = -\frac{1}{5}h + 20$

Step-by-step explanation:

Time is the dependent variable, so you set your function equal to s. Then, the correlation of the graph has a $\displaystyle -\frac{1}{5}$ rate of change [slope] from the y-intercept of $\displaystyle [0, 20],$ so we choose this answer choice.

I am joyous to assist you anytime.

4 0

2 years ago

Find the value of x and y

Svetllana [295]

Answer:

x = 1

y = -3

Step-by-step explanation:

cos(pi) = -1

so many ways :

sqrt(0.5/2) = sqrt(0.5/2 × 8/8) = sqrt(4/16)

= sqrt(0.5/2 × 18/18) = sqrt(9/36)

= sqrt(1/4) = 1/2

"nicest" approach (all integers) :

3x² = sqrt(9)

3x² = 3

x² = 3/3 = 1

x = 1

2y = sqrt(36)

2y = 6

y = 6/2 = 3

one of them has to be negative (because cos(pi) = -1), so it has to be y, because 3x² cannot be negative with real numbers.

so, y = -3

-1 × 3×1²/(2×-3) = sqrt(0.5/2) = 1/2

-1 × 3/-6 = 1/2

3/6 = 1/2

1/2 = 1/2

correct

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1 year ago

Which number comes next in the series? 1 – 8 – 27 – 64 – 125 – 216 –?

dalvyx [7]

${7}^{3} = 343$

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3 years ago