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dmitriy555 [2]
4 years ago
10

What does x equal for this problem

Mathematics
2 answers:
NeX [460]4 years ago
6 0
X=6 because 6x8=48:)
fgiga [73]4 years ago
5 0

I think x=42 because 48/x=8/7 you cross multiply meaning you do 48*7=336, then 8*x. So it would be 8x=336.

8x/8=336/8 so x=42.

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How can you use multiplication to check division ?
AnnyKZ [126]

u use ur answer and u multiply it

Step-by-step explanation:

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7 0
3 years ago
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Geometry math question
Scorpion4ik [409]

Hi!

You can find the value of x by the fact that as triangle CBE and CKE are congruent. The reason you can see the triangles are congruent is because of the AAS congruence postulate, where if two angles are the same and a non included side are congruent, the triangles are similar. In this case, angle CKE and angle CBE, are congruent, and CEB and CEK are congruent as well. (They're marked out as congruent.) The line CE is congruent to the other CE in the other triangle, because they are the same line.

Since you know the triangles are congruent, according to CPCTC (corresponding parts in congruent triangles are congruent), and line CK is congruent to line CB, line CK is congruent to CB, and has the same measure.

Therefore, you can set the measures of CB (5x - 3) and CK (3x + 1) equal to another and solve for x.

5x - 3 = 3x + 1

5x -3 + 3 = 3x + 1 + 3

5x = 3x + 4

5x - 3x = 3x - 3x + 4

2x = 4

2x / 2 = 4/2

x = 2, or choice C.

Hope this helps!

7 0
4 years ago
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In a cafeteria, 3/10 of the students ate eating salads, and 3/5 are eating sandwiches. There are 30 students in the cafeteria. H
Daniel [21]

Answer:

1/10 or 3kids

Step-by-step explanation:

First you want to take 3/5 into 10nths so you do 3/5 times two and you get 6/10 then you add up 6/10 and 3/10 and you get 9/10. 30÷ 9/10 is 27 so 3 kids are having other things

5 0
3 years ago
How do I solve A and B ?
iris [78.8K]

Answer:

a)x=5;  b)x=4

Step-by-step explanation:

a) 4x-3=2x+7

=>4x-2x=7+3

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b)2x+6=7x-14

=>7x-2x=6+14        

=>5x=20 

=>x=4       [divide both by5]

5 0
4 years ago
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Which logarithmic equation is equivalent to 82 = 64?
34kurt

Answer: Choice B

2 = \log_{8}(64)

======================================================

Explanation:

The original equation is 8^2 = 64 with 8 as the base. That is also the base of the log when we get the final answer shown above. Logs are useful to isolate the exponent.

The general rule is that \text{y} = b^{\text{x}} is equivalent to the log form of \text{x} = \log_{b}(\text{y}) where b is the base of each.

8 0
2 years ago
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