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jarptica [38.1K]
3 years ago
6

E is the mid point of DF. If DE= 7x. What is the length of DE

Mathematics
1 answer:
wel3 years ago
5 0

Answer:

I think you're missing information and don't you mean "what's the length of DF?"

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A bubble solution contains 3/4 cup of corn starch for every 2 cups water. What is the rate in cups of corn starch per cup of wat
bezimeni [28]

Answer:

3/8 cup of corn starch per cup of water

Step-by-step explanation:

hope dis help

8 0
2 years ago
4x + 5y = 102<br> 7y + 5y = 126
galina1969 [7]

Answer:

hope you like my question

Step-by-step explanation:

Hi -

What you want to do here is solve the equation by substitution.

To do that, you solve one of the equations for y. then plug that into the other equation so you have an equation with only x as the variable.

1) Solve either equation for y. Lets go with the first one:

4x+5y=102

Subtract 4x from each side:

5y=102-4x

Divide both sides by 5

y=(102-4x)/5

2) Plug this value for y into the other equation we started with:

7x+5y = 126

7x + 5((102-4x)/5) = 126

3) Solve the resulting equation for x.

Since we are multiplying and dividing (102-4x) by 5 the 2 5s cancel each other out

7x + 5((102-4x)/5) = 126

7x + 102 - 4x = 126

Combine the 2 x terms:

3x+102=126

subtract 102 from each side:

3x = 24

Divide both sides by 3:

x=8

Once we have a value for x, we can plug that number into either one of our starting equations to solve for y.

4x + 5y = 102; if x = 8

32+5y = 102

subtract 32 from each side:

5y = 70

Divide both sides by 5:

y = 14

So x = 8 and y = 14.

You can check your work by plugging these numbers both into your 2 initial equations.

4x+5y=102; 4*8+5*14 = 102

7x+5y=126; 7*8 +5*14 = 126

3 0
3 years ago
Can someone help me real quick? I’ll give brainliest
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Answer:

Number 4 will be Quadrant 3

Number 5 will be Quadrant 1

Number 6 will be 3 -4

Step-by-step explanation:

For number 6 it says a point so that is what I did sorry if i`m wrong

8 0
3 years ago
Read 2 more answers
Find the area of the composite figure <br><br> Please help!!
azamat

Answer:

area = 45

Step-by-step explanation:

triangle = 7*6. / 2 = 21

rectangle 4*6=24

24+21= 45ft squared

3 0
3 years ago
A quality control engineer tests the quality of produced computers. Suppose that 5% of computers have defects and defects occur
gogolik [260]

Answer:

*(0.168) 1*.75-9386

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