I need help with both boxes plz help thanks

Mathematics

1 answer:

Mashutka [201]3 years ago

4 0

Answer:

282.6

Step-by-step explanation:

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The slope of any line perpendicular to AB , where A(0, -3) and B(4, 9) are two points on the line, is m =

rjkz [21]

Are you missing an option? The answer should be -2/3 (I just calculated it numerous times)

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3 years ago

What is the percentage of cacao in hot chocolate which is made of 480 grams of milk and 20 grams of cacao?

galina1969 [7]

Given that the hot chocolate is made of 480 grams of milk and 20 grams of cacao.

We need to determine the percentage of cacao in hot chocolate.

<u>The percentage of cacao:</u>

The total grams of hot chocolate can be determined by adding the total grams of milk and the total grams of cacao.

Total grams of hot chocolate = Grams of Milk + Grams of cacao

Total grams of hot chocolate = 480 + 20 = 500 grams.

Thus, the total grams of hot chocolate is 500 grams.

Now, we shall find the percentage of cacao.

The percentage of cacao is given by

$\frac{100}{500}\times 20$

Simplifying, the values, we get,

$\frac{2000}{500}=4\%$

Thus, the percentage of cacao is 4%

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3 years ago

Here is a diagram and its corresponding equation. Find the solution to the equation.

Katen [24]

4(x + 7) = 38

Since there is no operation sign between the 4 and parenthesis, it makes it an automatic multiplication problem.

You would use distributive property to multiply each which should leave your equation looking like this afterwards:

4x + 28 = 38
(4 times x and 4 times 7)

You would then solve it like a two step equation,

1. +28 - 28 = 0
2. 38 - 28 = 10

4x = 10

10 divided by 4 = 2.5

x = 2.5

We can recheck our work by substituting in the value of x.

4(2.5 + 7) = 38

10 + 28 = 38

When we substituted in the value, it gave us the correct inequality.

Therefore,
x = 2.5

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2 years ago

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Bills weight is 48 kilograms. This is 10 grams more than one half his fathers weight. What is the fathers weight?

Musya8 [376]

<span>F=father's weight
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0.5F+10kg=48kg
0.5F=38kg
F=76kg
ANSWER: His father's weight is 76 kg.</span>

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3 years ago

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2/9 long division showed

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recall that a/b to decimal is just a ÷ b, so 2/9 is just 2 ÷ 9.