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3 years ago

51 . 4965 X _______ = 5149 . 65 Pls fasr

Mathematics

1 answer:

Simora [160]3 years ago

3 0

Answer:

51 . 4965 X 100= 5149 . 65 is the correct answer.

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7 x 28 = 7(20 + 8 = (7 x 20)+(7 = 140 + 56 = 196

adell [148]

Answer:B

Step-by-step explanation:

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3 years ago

Find the values of x and y

eimsori [14]

Answer:

y = 70 and x = 20

Step-by-step explanation:

180 - 40 = 140

140/2 = 70

70 + 90 = 160

180 - 160 = 20

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3 years ago

Solve 2x+3y=2 5x-y=-29 By elimination

Andreyy89

Answer:

$\huge\boxed{x=-5,\ y=4\to(-5,\ 4)}$

Step-by-step explanation:

$\left\{\begin{array}{ccc}2x+3y=2\\5x-y=-29&\text{multiply both sides by 3}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}2x+3y=2\\15x-3y=-87\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad17x=-85\qquad\text{divide both sides by 17}\\.\qquad\dfrac{17x}{17}=\dfrac{-85}{17}\\.\qquad\boxed{x=-5}\\\\\text{Substitute it to the second equation:}\\\\5(-5)-y=-29\\\\-25-y=-29\qquad\text{add 25 to both sides}\\\\-25+25-y=-29+25\\\\-y=-4\qquad\text{change the signs}\\\\\boxed{y=4}$

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3 years ago

A manufacturer of bolts has a quality-control policy that requires it to destroy any bolts that are more than 4 standard deviat

Doss [256]

Answer:

more than 15.40 cm and less than 14.60 cm

Step-by-step explanation:

A manufacturer of bolts has a quality control policy that requires it destroy any bolts that are more than 4 standard deviations from the mean.

mean length= 15 cm

standard deviation= 0.10 cm

4 standard deviation from mean= 15±(4×0.10)

therefore, bolts of length more than 15+0.4, and less than 15-0.4 will be destroyed

= 15.40 cm and 14.60 cm

4 0

3 years ago

Sanjay read 56 pages of his book this weekend.This is 35% of the pages in the book.How many pages are in Sanjays book?

Maurinko [17]

1. 56 : 35 = 1.6
2. 1.6* 100 = 160
3. The answer is 160

3 0

3 years ago