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2 years ago

Solve 7k÷3=21 The solution is k __

Mathematics

2 answers:

klemol [59]2 years ago

5 0

9
Because 21*3=63
63/7=9

qaws [65]2 years ago

4 0

First, multiply by 3 on both sides:
$7k = 63$

Divide by 7:
$k = 9$

So, k = 9

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Write an equation in point-slope form for the line that passes through the point with the given slope. point: (4,2) and m=3

jonny [76]

Answer:

y = 3x - 10

Step-by-step explanation:

4 0

3 years ago

In Triangle ABC shown below, side AB is 6 and side AC is 4.

Amanda [17]

Answer: A is the correct option.Segment AD is 3 and segment AE is 2.

Step-by-step explanation:

Given : A triangle ABC where AC=4 and AB=6

then to prove segment DE is parallel to segment BC and half its length.

the length of AD and AE must divide AC and AB respectively to get the same ratio of 2:1

To apply converse of basic proportionality theorem.

If we take first option Segment AD is 3 and segment AE is 2 then

$\frac{AB}{AD}=\frac{6}{3}=\frac{2}{1},\frac{AC}{AE}=\frac{4}{2}=\frac{2}{1}\\\Rightarrow\frac{AB}{AD}=\frac{AC}{AE}$

Therefore by converse of basic proportionality theorem

DE is parallel to segment BC and half its length.

Therefore A is correct option.

7 0

2 years ago

Read 2 more answers

92.96 as a fraction

nikklg [1K]

To change a decimal to a fraction you need to first place the decimal over 1. Next, for each number behind the decimal, you will multiply by a multiple of 10. Since there are 2 numbers behind the decimal, it's 100. Therefore,
92.96 x 100 = 9296
1 x 100= 100

Your new fraction is 9296/100. Now we simplify it. I'm going by 2's so it may take a bit.
Simplifying it twice by 2's your answer would be:

2324/25

3 0

2 years ago

A regular prism with length l width w and height h has a volume of lwh. What is the volume of a prism which has a base of 5 m by

Sindrei [870]

The answer is 60m
You must multipy base x height x width to find the volume of a rectangular prism

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2 years ago

Simplify into one fraction<br><br> 8x-2/x-8-2/x-8

Elis [28]

$\frac{8x-2}{x-8} - \frac{2}{x-8}$

The fractions already have a common denominator of x-8, so all wee need to do is combine the numerators:

$\frac{8x-2-2}{x-8}$

$\frac{8x-4}{x-8}$

3 0

3 years ago