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garik1379 [7]
3 years ago
9

What is x when 5x 3y = 19.?

Mathematics
1 answer:
Kay [80]3 years ago
8 0
I am assuming the x is supposed to mean multiplication...
5 x 3y = 19  Simplify

15y = 19  Divide

15y /15= 19/15
y = 1.2666

or rounded its 1.3
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Could u also help me with number 18 thank u
LenKa [72]
Just do 248.9 + 354.03 (which gets you 602.93). since 600 is below 603.93, patrick is unable to successfully make a 354.03 meter scarf.
8 0
3 years ago
Which function is the inverse of f(x) =2x +3
frosja888 [35]

Answer:

 -1

f     (x) = x/2 - 3/2

Step-by-step explanation:

I choose to address this question by actually finding the inverse of f(x) = 2x + 3.

1) replace f(x) with y:  y = 2x + 3

2) interchange x and y:  x = 2y + 3

3) solve this result for y:  2y = x - 3 , or  y = (x - 3)/2.  This is the same as the second answer choice.  Label this result as

 -1

f     (x) = x/2 - 3/2

5 0
3 years ago
Read 2 more answers
The dose of a drug is critical. Too small a dose may not treat a patient effectively, while too much can cause serious side effe
otez555 [7]

Proportionately, the amount of the drug that the patient should be given is <u>2,993.71 mg</u>.

<h3>What is the proportion?</h3>

The proportion is the ratio of a variable to another.

Proportion defines the numerical relationships among variables.

Proportion shows how much a value is contained in the whole.

<h3>Data and Calculations:</h3>

2.20462 lb = 1 kg

165 lb = 74.8428 kg (165/2.20462)

1 kg = 40 mg of the drug

74.8428 kg = 2,993.71 mg (74.8428 kg x 40 mg)

Thus, the amount of the drug that the patient should be given is <u>2,993.71 mg</u>.

Learn more about proportions at brainly.com/question/870035

#SPJ1

3 0
2 years ago
ABC is similar to DEC Find the length of x. <br><br>The length of side x is m
dolphi86 [110]
<h3>Answer:</h3>

x = 18.75 m

<h3>Step-by-step explanation:</h3>

In the similar triangles, ...

... EC/ED = BC/BA

... (2.5 m)/(3.2 m) = x/(24 m)

Multiplying by 24 m gives

... x = (24 m)(25/32) = (75 m)/4 = 18.75 m

5 0
3 years ago
A miniature yorkshire terrier one of the smallest dogs may weigh only 700 g. but a st. bernard the heaviest dog could easily wei
Pachacha [2.7K]

Answer:

76-0.7=75.3 kg

Step-by-step explanation:

I don't understand the question

7 0
3 years ago
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