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Marianna [84]
3 years ago
5

10. 10x + 5y = 15 y=2x-3

Mathematics
1 answer:
Ivan3 years ago
6 0

Answer:

(i think) 1.5

Step-by-step explanation:

If you replace y with the equation y=2x-3, you get 5(2x - 3)

if you distribute this, it equals 10x - 15

combining like terms 10x + 10x - 15=15 will turn into 20x - 15 = 15

if you add 15 to both sides, -15 will cancel and 15 will turn into 30

20x = 30

divide both sides by 20 which will lead to x=1.5

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WHAT IS 5+6+6+^6 DIVDED BY 7
GaryK [48]

The value of the given expression is 11.57

<h3>Division of number</h3>

Division are written as a ratio of two values. Given the expression below

5+6+6+2^6 ÷ 7

Simplify to have:

(11+6+64)÷ 7

Simplify the expression in parenthesis

81÷ 7

11.57

Hence the value of the given expression is 11.57

Learn more on division here: brainly.com/question/25289437

#SPJ1

7 0
2 years ago
A company wants to compare two washing detergents (Brands A and B) to see which best keeps colors from fading. Twenty new, ident
gogolik [260]

Answer:

No, because water temperature is confounded with brand of detergent.

Step-by-step explanation:

There is a very possible chance of allowing a third or confounding variable to have creepwd into the research. The aim was to investigate which of two detergents prevents color from fading. Hence, the test for both detergents should be carried out under the same research condition. However, with adoption of different water temperature for each of detergent A and B, there may be a relationship between fading and water temperature which is not what are trying to investigate. This difference in temperature will thus cause a spurious relationship in our research. Hence, water temperature has been confounded with detergent brand, making this experimental design a bad one.

4 0
3 years ago
5 stars for most accurate answer
Pani-rosa [81]
The correct answer is B. 

The reason they are testing this new sports drink is to see if it will work better, worse, or "differently" as they are putting it! The other answers do not have anything to do with the experiment.

Hope this helps! Would love brainliest trying to get to virtuoso thanks!
4 0
4 years ago
In the diagram of circle K, tangents are drawn from point A to points B and C on the circle. If arc mBC = 96, then what is the m
rjkz [21]

Answer:

∠A = 84°

Step-by-step explanation:

Since AB and AC are tangent to the circle, ∠ABK = 90° and ∠ACK = 90°.

Angles of a quadrilateral add up to 360°, so:

∠A + 90° + 90° + 96° = 360°

∠A = 84°

8 0
3 years ago
Find the missing side length.
Salsk061 [2.6K]

Answer:

5cm+6cm=11cm

Step-by-step explanation:

Adding the two,

5 0
3 years ago
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