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3 years ago

Solve the system of linear equations by adding or subtracting.

Mathematics

1 answer:

Sav [38]3 years ago

7 0

Answer:

add bc when you subtract it will mess up your answer bc were literally doing the same thing in school at least i think adding right

Step-by-step explanation:

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Use the diagram below to solve for x and y.

Mrac [35]

Answer:

Option A. x=30,y=42

Step-by-step explanation:

we know that

If two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

In this problem

Triangles ABC and ZYX have three congruent interior angles

therefore

Triangles are similar

step 1

Find the value of x

$\frac{ZY}{AB}=\frac{ZX}{AC}$

substitute the values

$\frac{20}{x}=\frac{12}{18}$

$x=20*18/12=30\ units$

step 2

Find the value of y

$\frac{ZY}{AB}=\frac{XY}{CB}$

substitute the values

$\frac{20}{30}=\frac{28}{y}$

$y=30*28/20=42\ units$

8 0

3 years ago

Okayy but fr someone helppp, plss ASAP. I need an answer now

hjlf

Answer:

ertyuiygguyyguguyugggu

Step-by-step explanation:

5 0

3 years ago

A block of metal has a volume of 56,000cm3 and a mass of 280,000 g find the density of the metal in kg/m3

chubhunter [2.5K]

Answer:

Please refer the attachment for answers and explanation.

Step-by-step explanation:

Hope it helps ♥️♥️♥️

3 0

2 years ago

A construction crew is lengthening a road. The road started with a length of 54 miles, and the crew is adding 3 miles to the roa

patriot [66]

53+3(D) = L

53 + 3(38) =L

53 +114 = L

167=L

6 0

3 years ago

Simplify the expression:<br>(5y^7)^-3

Nezavi [6.7K]

$(a^{m} )^{n} =a^{m*n}$
$a^{-n} = \frac{1}{ a^{n} }$

$(5y^{7} )^{-3} =5y^{7*(-3)} = \frac{1}{(5y)^{7*3} } = \frac{1}{125y^{21} }$

4 0

4 years ago