3 years ago

A number plus the sum of the number and seven.

Mathematics

1 answer:

Dmitrij [34]3 years ago

8 0

Answer:

x+(x+7)

Step-by-step explanation:

sum=add all together

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Find the slope of the line that passes through (10,8) and (1,9).

lesya [120]

Answer:

$-\frac{1}{9}$

Step-by-step explanation:

between (1, 9) and (10, 8), the x moves by 9 and y moves by -1

The slope is equal to: $\frac{\Delta y}{\Delta x} = \frac{-1}{9} = -\frac{1}{9}$

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3 years ago

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Which inequality is true?

Andreas93 [3]

Answer:

2 awnser is the right on

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3 years ago

What is the answer to this problem?<br><br> X+ 5/12=5/8

Irina-Kira [14]

We we are asked to solve this kind of problem we are asked to find the value of the value (x in this case). So the first thing we want to do isolate x by subtracting 5/12 from both sides.

x+5/12-5/12=5/8-5/12

Simplify

x=5/8-5/12

Reduce

x=3/3(5/8)-2/2(5/12)

x=15/24-10/24

x=5/24

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3 years ago

A jar contains 25 coins of only dimes and quarters. The value of the jar is $4.45. Write the equation that represent the money v

8_murik_8 [283]

Answer:

Step-by-step explanation:

3 0

3 years ago

a stone is thrown downward with an intitial velocity of 29.5 m/sec will travel a distance of a meters, where s(t) = 4.9t^2 + 29.

Alenkinab [10]

Answer:

t = 9 s

Step-by-step explanation:

A stone is thrown downward with an intitial velocity of 29.5 m/sec will travel a distance of a meters, where

$s(t) = -4.9t^2 + 29.4+132.3$

We need to find when the stone will hit the ground. It means when s(t) = 0. So,

$-4.9t^2 + 29.4t+132.3=0\\\\t=-3\ and\ t=9$

So, the stone will take 9 seconds to hit the ground. Hence, this is the required solution.

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3 years ago